1
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Nowak-Król A, Geppert PT, Naveen KR. Boron-containing helicenes as new generation of chiral materials: opportunities and challenges of leaving the flatland. Chem Sci 2024; 15:7408-7440. [PMID: 38784742 PMCID: PMC11110153 DOI: 10.1039/d4sc01083c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/16/2024] [Indexed: 05/25/2024] Open
Abstract
Increased interest in chiral functional dyes has stimulated activity in the field of boron-containing helicenes over the past few years. Despite the fact that the introduction of boron endows π-conjugated scaffolds with attractive electronic and optical properties, boron helicenes have long remained underdeveloped compared to other helicenes containing main group elements. The main reason was the lack of reliable synthetic protocols to access these scaffolds. The construction of boron helicenes proceeds against steric strain, and thus the methods developed for planar systems have sometimes proven ineffective in their synthesis. Recent advances in the general boron chemistry and the synthesis of strained derivatives have opened the way to a wide variety of boron-containing helicenes. Although the number of helically chiral derivatives is still limited, these compounds are currently at the forefront of emissive materials for circularly-polarized organic light-emitting diodes (CP-OLEDs). Yet the design of good emitters is not a trivial task. In this perspective, we discuss a number of requirements that must be met to provide an excellent emissive material. These include chemical and configurational stability, emission quantum yields, luminescence dissymmetry factors, and color purity. Understanding of these parameters and some structure-property relationships should aid in the rational design of superior boron helicenes. We also present the main achievements in their synthesis and point out niches in this area, e.g. stereoselective synthesis, necessary to accelerate the development of this fascinating class of compounds and to realize their potential in OLED devices and in other fields.
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Affiliation(s)
- Agnieszka Nowak-Król
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Patrick T Geppert
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Kenkera Rayappa Naveen
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron, Universität Würzburg Am Hubland 97074 Würzburg Germany
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2
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Vázquez-Domínguez P, Rizo JF, Arteaga JF, Jacquemin D, Favereau L, Ros A, Pischel U. Azaborahelicene fluorophores derived from four-coordinate N, C-boron chelates: synthesis, photophysical and chiroptical properties. Org Chem Front 2024; 11:843-853. [PMID: 38298564 PMCID: PMC10825847 DOI: 10.1039/d3qo01762a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/12/2023] [Indexed: 02/02/2024]
Abstract
A series of six azaborahelicenes with varying electron-donor substitution at the 4-position of the aryl residue (i.e., naphthyl) or with variable π-extension of the aryl residue (thianthrenyl, anthryl, pyrenyl) was prepared with an efficient and flexible synthetic protocol. These different types of functionalization afforded notably pronounced intramolecular charge-transfer (ICT) character for the dyes with the strongest electron donor substitution (NMe2) or easiest to oxidize aryl residues, as evidenced by photophysical investigations. These effects also impact the corresponding chiroptical properties of the separated M- and P-enantiomers, which notably display circularly polarized luminescence (CPL) with dissymmetry factors in the order of magnitude of 10-4 to 10-3. Theoretical calculations confirm the optical spectroscopy data and are in agreement with the proposed involvement of ICT processes.
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Affiliation(s)
- Pablo Vázquez-Domínguez
- Institute for Chemical Research (CSIC-US) C/Américo Vespucio 49 E-41092 Seville Spain
- Department of Organic Chemistry, Innovation Centre in Advanced Chemistry, ORFEO-CINQA, University of Seville C/Prof. García González 1 41012 Seville Spain
| | - José Francisco Rizo
- Institute for Chemical Research (CSIC-US) C/Américo Vespucio 49 E-41092 Seville Spain
| | - Jesús F Arteaga
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva Campus de El Carmen s/n E-21071 Huelva Spain
| | - Denis Jacquemin
- Nantes Université, CNRS, CEISAM UMR 6230 F-44000 Nantes France
- Institut Universitaire de France (IUF) F-75005 Paris France
| | | | - Abel Ros
- Institute for Chemical Research (CSIC-US) C/Américo Vespucio 49 E-41092 Seville Spain
| | - Uwe Pischel
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva Campus de El Carmen s/n E-21071 Huelva Spain
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3
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Stehrer P, Spannenberg A, Hapke M. Atroposelective Ir-Catalyzed C-H Borylation of Phthalazine Heterobiaryls. J Org Chem 2023; 88:14222-14226. [PMID: 37751525 PMCID: PMC10563123 DOI: 10.1021/acs.joc.3c01534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Indexed: 09/28/2023]
Abstract
The atroposelective iridium-catalyzed borylation of menthyloxy-substituted phthalazine heterobiaryls with diborons is reported. Utilizing [Ir(OMe)(COD)]2/2-aminopyridine as a rarely used efficient catalyst system, the heterobiaryls were selectively borylated in the 2-position of the carbocycle, exclusively yielding only one of the atropisomers, depending on the substitution of the phthalazine with (+)-menthyl or (-)-menthyl moieties. Exemplary further functionalization of a borylated atropisomer demonstrated that nickel-catalyzed Suzuki-Miyaura cross-coupling with an aryl halide was able to provide stereoretention to a certain degree (up to 75% de).
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Affiliation(s)
- Paul Stehrer
- Institute
for Catalysis (INCA), Johannes Kepler University
Linz (JKU), Altenberger
Strasse 69, 4040 Linz, Austria
| | - Anke Spannenberg
- Leibniz
Institute for Catalysis e.V. (LIKAT), Albert-Einstein-Strasse 29a, 18069 Rostock, Germany
| | - Marko Hapke
- Institute
for Catalysis (INCA), Johannes Kepler University
Linz (JKU), Altenberger
Strasse 69, 4040 Linz, Austria
- Leibniz
Institute for Catalysis e.V. (LIKAT), Albert-Einstein-Strasse 29a, 18069 Rostock, Germany
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4
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Yang T, Valavalkar A, Romero-Arenas A, Dasgupta A, Then P, Chettri A, Eggeling C, Ros A, Pischel U, Dietzek-Ivanšić B. Excited-State Dynamics in Borylated Arylisoquinoline Complexes in Solution and in cellulo. Chemistry 2023; 29:e202203468. [PMID: 36477948 DOI: 10.1002/chem.202203468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/01/2022] [Accepted: 12/07/2022] [Indexed: 12/12/2022]
Abstract
Two four-coordinate organoboron N,C-chelate complexes with different functional terminals on the PEG chains are studied with respect to their photophysical properties within human MCF-7 cells. Their excited-state properties are characterized by time-resolved pump-probe spectroscopy and fluorescence lifetime microscopy. The excited-state relaxation dynamics of the two complexes are similar when studied in DMSO. Aggregation of the complexes with the carboxylate terminal group is observed in water. When studying the light-driven excited-state dynamics of both complexes in cellulo, i. e., after being taken up into human MCF-7 cells, both complexes show different features depending on the nature of the anchoring PEG chains. The lifetime of a characteristic intramolecular charge-transfer state is significantly shorter when studied in cellulo (360±170 ps) as compared to in DMSO (∼960 ps) at 600 nm for the complexes with an amino group. However, the kinetics of the complexes with the carboxylate group are in line with those recorded in DMSO. On the other hand, the lifetimes of the fluorescent state are almost identical for both complexes in cellulo. These findings underline the importance to evaluate the excited-state properties of fluorophores in a complex biological environment in order to fully account for intra- and intermolecular effects governing the light-induced processes in functional dyes.
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Affiliation(s)
- Tingxiang Yang
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany.,Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - Abha Valavalkar
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany.,Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - Antonio Romero-Arenas
- Institute for Chemical Research, CSIC-US and Innovation Centre in Advanced Chemistry, ORFEO-CINQA C/Américo Vespucio 49, 41092, Seville, Spain
| | - Anindita Dasgupta
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany.,Institute of Applied Optics and Biophysics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - Patrick Then
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany.,Institute of Applied Optics and Biophysics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - Avinash Chettri
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany.,Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - Christian Eggeling
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany.,Institute of Applied Optics and Biophysics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany.,Member of the Leibniz Centre for Photonics in Infection Research (LPI), Jena (Germany).,Jena Center for Soft Matter (JCSM), Philosophenweg 7, D-07743, Jena
| | - Abel Ros
- Institute for Chemical Research, CSIC-US and Innovation Centre in Advanced Chemistry, ORFEO-CINQA C/Américo Vespucio 49, 41092, Seville, Spain
| | - Uwe Pischel
- CIQSO-Centre for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen, s/n, 21071, Huelva, Spain
| | - Benjamin Dietzek-Ivanšić
- Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany.,Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Philosophenweg 7, D-07743, Jena
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5
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Kannan R, Chandrasekhar V. Four-membered C^N chelation in main-group organometallic chemistry. Dalton Trans 2023; 52:1159-1176. [PMID: 36602433 DOI: 10.1039/d2dt03494h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Main-group organometallic compounds containing four-membered C^N chelating rings are being studied because of the interest in harnessing the enhanced reactivity of such compounds which arises as a result of the release of steric strain. In this article, we have reviewed the literature on these systems. This review is organised in terms of the types of ligand systems that allow the assembly of such compounds, viz., compounds containing aliphatic amine motifs, pyridine motifs and aniline motifs. In addition to a discussion on the synthesis and structure, we also examine the reactivity and applications of the main-group element compounds involved. In particular, applications involving H2 activation, carbonyl activation, olefin reduction, C-H activation, hydroalumination, cyanamide oligomerisation, borylation of olefins and heteroarenes, isocyanate activation and C-C bond activation are discussed.
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Affiliation(s)
- Ramkumar Kannan
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500 046, Telangana, India.
| | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500 046, Telangana, India. .,Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016, Uttar Pradesh, India
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6
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Alahmadi AF, Zuo J, Jäkle F. B-N Lewis pair-fused dipyridylfluorene copolymers incorporating electron-deficient benzothiadiazole comonomers. Polym J 2022. [DOI: 10.1038/s41428-022-00723-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Tian G, Chen JF, Zhang K, Shi Y, Li C, Yin X, Liu K, Chen P. Applying the B/N Lewis Pair Approach to Access Fusion-Expanded Binaphthyl-Based Chiral Analogues. Inorg Chem 2022; 61:15315-15319. [PMID: 36135458 DOI: 10.1021/acs.inorgchem.2c02875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We herein describe the synthesis of two axially chiral systems (HBN and BBN) by the incorporation of B centers into binaphthyl derivatives (HPy and BPy). Heteroatom-doped chiral polycyclic aromatic hydrocarbons were thus formed by fusion of the azaboroles to binaphthyls with the formation of B-N dative bonds. The resulting B-N Lewis pairs that serve as attractive fluorophores enabled modulation of the chiroptical properties both in solution and in the solid state.
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Affiliation(s)
- Guoqing Tian
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Jin-Fa Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Kai Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Yafei Shi
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Chenglong Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Kanglei Liu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, and Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
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8
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Nayak P, Murali AC, Pal PK, Priyakumar UD, Chandrasekhar V, Venkatasubbaiah K. Tetra-Coordinated Boron-Functionalized Phenanthroimidazole-Based Zinc Salen as a Photocatalyst for the Cycloaddition of CO 2 and Epoxides. Inorg Chem 2022; 61:14511-14516. [PMID: 36074754 DOI: 10.1021/acs.inorgchem.2c02693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A unique B-N coordinated phenanthroimidazole-based zinc salen was synthesized. The zinc salen thus synthesized acts as a photocatalyst for the cycloaddition of carbon dioxide with terminal epoxides under ambient conditions. DFT study of the cycloaddition of carbon dioxide with terminal epoxide indicates the preference of the reaction pathway when photocatalyzed by zinc salen. We anticipate that this strategy will help to design new photocatalysts for CO2 fixation.
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Affiliation(s)
- Prakash Nayak
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhaba National Institute, Bhubaneswar 752050, Odisha, India
| | - Anna Chandrasekar Murali
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhaba National Institute, Bhubaneswar 752050, Odisha, India
| | - Pradeep Kumar Pal
- International Institute of Information Technology, Hyderabad 500 032, India
| | - U Deva Priyakumar
- International Institute of Information Technology, Hyderabad 500 032, India
| | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad 500 046, India.,Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhaba National Institute, Bhubaneswar 752050, Odisha, India
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9
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Synthesis and Strong Solvatochromism of Push-Pull Thienylthiazole Boron Complexes. Molecules 2022; 27:molecules27175510. [PMID: 36080276 PMCID: PMC9457742 DOI: 10.3390/molecules27175510] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
The solvatochromic behavior of two donor-π bridge-acceptor (D-π-A) compounds based on the 2-(3-boryl-2-thienyl)thiazole π-linker and indandione acceptor moiety are investigated. DFT/TD-DFT calculations were performed in combination with steady-state absorption and emission measurements, along with electrochemical studies, to elucidate the effect of two different strongly electron-donating hydrazonyl units on the solvatochromic and fluorescence behavior of these compounds. The Lippert–Mataga equation was used to estimate the change in dipole moments (Δµ) between ground and excited states based on the measured spectroscopic properties in solvents of varying polarity with the data being supported by theoretical studies. The two asymmetrical D-π-A molecules feature strong solvatochromic shifts in fluorescence of up to ~4300 cm−1 and a concomitant change of the emission color from yellow to red. These changes were accompanied by an increase in Stokes shift to reach values as large as ~5700–5800 cm−1. Quantum yields of ca. 0.75 could be observed for the N,N-dimethylhydrazonyl derivative in nonpolar solvents, which gradually decreased along with increasing solvent polarity, as opposed to the consistently reduced values obtained for the N,N-diphenylhydrazonyl derivative of up to ca. 0.20 in nonpolar solvents. These two push–pull molecules are contrasted with a structurally similar acceptor-π bridge-acceptor (A-π-A) compound.
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10
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Mukundam V, Sa S, Kumari A, Ponduru TT, Das R, Venkatasubbaiah K. Synthesis, photophysical, electrochemical, and non-linear optical properties of triaryl pyrazole based B-N coordinated boron compounds. Chem Asian J 2022; 17:e202200291. [PMID: 35452174 DOI: 10.1002/asia.202200291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/19/2022] [Indexed: 11/10/2022]
Abstract
We report here a set of triaryl pyrazole based B-N coordinated boron compounds ( 11 - 17 ) synthesized by electrophilic aromatic borylation strategy. All the pyrazole boron compounds were thoroughly characterized using multinuclear NMR spectroscopy, LCMS, and single crystal X-ray diffraction analysis (for 12 - 17 ). The photoluminescence measurements of 11 - 17 revealed that the emission peak maxima were tuned based on the substitution on Nphenyl. The photophysical and electrochemical properties were further supported by theoretical calculations. Z-scan based investigations at 515 nm pump wavelength showed that B-N coordination led to enhancement of nonlinear absorption (two-photon absorption (TPA)) in these compounds if an electron deficient moiety is attached. It has also been observed that an appropriate choice of moiety allows to optimally maneuver the molecular polarizability of the π-system and consequently, assists in controlling the third-order nonlinear optical response.
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Affiliation(s)
- Vanga Mukundam
- National Institute of Science Education and Research, School of Chemical Sciences, INDIA
| | - Shreenibasa Sa
- National Institute of Science Education and Research, School of Chemical Sciences, INDIA
| | - Anupa Kumari
- National Institute of Science Education and Research, School of Physical Sciences, INDIA
| | - Tharun Teja Ponduru
- National Institute of Science Education and Research, School of Chemical Sciences, INDIA
| | - Ritwick Das
- National Institute of Science Education and Research, School of Physical Sciences, INDIA
| | - Krishnan Venkatasubbaiah
- National Institute of Science Education and Research, School of Chemical Sciences, NISER, 752050, Bhubaneswar, INDIA
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11
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Mondal D, Sardar G, Kabra D, Balakrishna MS. 2,2'-Bipyridine derived doubly B ← N fused bisphosphine-chalcogenides, [C 5H 3N(BF 2){NCH 2P(E)Ph 2}] 2 (E = O, S, Se): tuning of structural features and photophysical studies. Dalton Trans 2022; 51:6884-6898. [PMID: 35441638 DOI: 10.1039/d2dt00287f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2,2'-Bipyridine based bisphosphine [C5H3N{N(H)CH2PPh2}]2 (1) and its bischalcogenide derivatives [C5H3N{N(H)CH2P(E)Ph2}]2 (2, E = O; 3, E = S; 4, E = Se) were synthesized, and further reacted with BF3·Et2O/Et3N to form doubly B ← N fused compounds [C5H3N(BF2){NCH2P(E)Ph2}]2 (5, E = O; 6, E = S; 7, E = Se) in excellent yields. The influence of the PE bonds on the electronic properties of the doubly B ← N fused systems and their structural features were investigated in detail, supported by extensive experimental and computational studies. Compound 6 exhibited a very high quantum yield of ϕ = 0.56 in CH2Cl2, whereas compound 7 showed a least quantum yield of ϕ = 0.003 in acetonitrile. Density functional theory (DFT) calculations demonstrated that the LUMO/HOMO of compounds 5-7 mostly delocalized over the entire π-conjugated frameworks. The involvement of PE bonds in the HOMO energy level of these compounds follows the order: PO < PS < PSe. Time-correlated single photon counting (TCSPC) experiments of compounds 5-7 revealed the singlet lifetime of 4.26 ns for 6, followed by 4.03 ns for 5 and a lowest value of 2.18 ns (τ1) and 0.47 ns (τ2) with a double decay profile for 7. Our findings provide important strategies for the design of highly effective B ← N bridged compounds and tuning their photophysical properties by oxidizing phosphorus with different chalcogens. Compounds 5 and 6 have been employed as green emitters (λem = 515 nm) in fluorescent organic light-emitting diodes (OLEDs). For compound 5, doped into the poly(9-vinylcarbazole) (PVK) matrix with 5 wt% doping concentration, nearly 90 Cd m-2 luminance with 0.022% external quantum efficiency (EQE) was achieved. The best performance was observed for compound 6 doped into PVK by 1 wt% having a maximum luminance of 350 Cd m-2 and a similar EQE value.
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Affiliation(s)
- Dipanjan Mondal
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Gopa Sardar
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Dinesh Kabra
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Maravanji S Balakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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12
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Campos-González R, Vázquez-Domínguez P, Remón P, Nájera F, Collado D, Pérez-Inestrosa E, Boscá F, Ros A, Pischel U. Bis-borylated arylisoquinoline-derived dyes with a central aromatic core: towards efficient fluorescent singlet-oxygen photosensitizers. Org Chem Front 2022. [DOI: 10.1039/d2qo00778a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polycyclic aromatic hydrocarbon chromophores that show an ideal bipartition between fluorescence and singlet oxygen production have been developed.
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Affiliation(s)
- René Campos-González
- CIQSO – Centre for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
- Facultad de Química, Departamento de Química Orgánica, Universidad Nacional Autónoma de México, Cto. Exterior s/n, Coyoacán, 04510 Ciudad de México, Mexico
| | - Pablo Vázquez-Domínguez
- Institute for Chemical Research, CSIC-US, C/Américo Vespucio 49, 41092 Seville, Spain
- Department of Organic Chemistry, Innovation Centre in Advanced Chemistry, ORFEO-CINQA, University of Seville, C/Prof. García González 1, 41012 Seville, Spain
| | - Patricia Remón
- CIQSO – Centre for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
| | - Francisco Nájera
- Department of Organic Chemistry, IBIMA, University of Málaga, Campus Teatinos s/n, 29071 Málaga, Spain
- Andalusian Centre for Nanomedicine and Biotechnology, BIONAND, Parque Tecnológico de Andalucía, 29590 Málaga, Spain
| | - Daniel Collado
- Department of Organic Chemistry, IBIMA, University of Málaga, Campus Teatinos s/n, 29071 Málaga, Spain
- Andalusian Centre for Nanomedicine and Biotechnology, BIONAND, Parque Tecnológico de Andalucía, 29590 Málaga, Spain
| | - Ezequiel Pérez-Inestrosa
- Department of Organic Chemistry, IBIMA, University of Málaga, Campus Teatinos s/n, 29071 Málaga, Spain
- Andalusian Centre for Nanomedicine and Biotechnology, BIONAND, Parque Tecnológico de Andalucía, 29590 Málaga, Spain
| | - Francisco Boscá
- Instituto de Tecnología Química, Universitat Politècnica de València – Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Abel Ros
- Institute for Chemical Research, CSIC-US, C/Américo Vespucio 49, 41092 Seville, Spain
| | - Uwe Pischel
- CIQSO – Centre for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
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13
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Rej S, Das A, Chatani N. Pyrimidine-directed metal-free C-H borylation of 2-pyrimidylanilines: a useful process for tetra-coordinated triarylborane synthesis. Chem Sci 2021; 12:11447-11454. [PMID: 34567499 PMCID: PMC8409464 DOI: 10.1039/d1sc02937a] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/22/2021] [Indexed: 12/15/2022] Open
Abstract
Convenient, easily handled, laboratory friendly, robust approaches to afford synthetically important organoboron compounds are currently of great interest to researchers. Among the various available strategies, a metal-free approach would be overwhelmingly accepted, since the target boron compounds can be prepared in a metal-free state. We herein present a detailed study of the metal-free directed ortho-C–H borylation of 2-pyrimidylaniline derivatives. The approach allowed us to synthesize various boronates, which are synthetically important compounds and various four-coordinated triarylborane derivatives, which could be useful in materials science as well as Lewis-acid catalysts. This metal-free directed C–H borylation reaction proceeds smoothly without any interference by external impurities, such as inorganic salts, reactive functionalities, heterocycles and even transition metal precursors, which further enhance its importance. We present the metal-free ortho-C–H borylation of 2-pyrimidylanilines to afford synthetically important boronic esters and tetra-coordinated triarylboranes, which could be useful in materials science as well as Lewis-acid catalysts.![]()
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Affiliation(s)
- Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering, Osaka University Suita Osaka 5650871 Japan
| | - Amrita Das
- Department of Applied Chemistry, Faculty of Engineering, Osaka University Suita Osaka 5650871 Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University Suita Osaka 5650871 Japan
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14
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Nakazato T, Shinokubo H, Miyake Y. Complexation of 2,7-diazapyrene with boron for structural and electronic tuning. Chem Commun (Camb) 2021; 57:327-330. [DOI: 10.1039/d0cc07804b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Complexation of tetra(hydroxyphenyl)-2,7-diazapyrene with boron provided the boron complexes as anti- and syn-isomers. The structural difference induces self-association behaviour of the syn-isomer and isomerisation of the anti-isomer in the solution and solid states.
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Affiliation(s)
- Takumi Nakazato
- Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Hiroshi Shinokubo
- Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Yoshihiro Miyake
- Department of Molecular and Macromolecular Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
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15
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Tasior M, Vakuliuk O, Koga D, Koszarna B, Górski K, Grzybowski M, Kielesiński Ł, Krzeszewski M, Gryko DT. Method for the Large-Scale Synthesis of Multifunctional 1,4-Dihydro-pyrrolo[3,2- b]pyrroles. J Org Chem 2020; 85:13529-13543. [PMID: 32907329 PMCID: PMC7656515 DOI: 10.1021/acs.joc.0c01665] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
![]()
A thorough investigation has enabled
the optimization of the synthesis
of 1,4-dihydro-pyrrolo[3,2-b]pyrroles. Although salts
of such metals as vanadium, niobium, cerium, and manganese were found
to facilitate the formation of 1,4-dihydro-pyrrolo[3,2-b]pyrroles from amines, aldehydes, and diacetyl, we confirmed that
iron salts are the most efficient catalysts. The conditions identified
(first step: toluene/AcOH = 1:1, 1 h, 50 °C; second step: toluene/AcOH
= 1:1, Fe(ClO4)3·H2O, 16 h,
50 °C) resulted in the formation of tetraarylpyrrolo[3,2-b]pyrroles in a 6–69% yield. For the first time,
very electron-rich substituents (4-Me2NC6H4, 3-(OH)C6H4, pyrrol-2-yl) originating
from aldehydes and sterically hindered substituents (2-ClC6H4, 2-BrC6H4, 2-CNC6H4, 2-(CO2Me)C6H4, 2-(TMS-C≡C)C6H4) present on anilines can be appended to the
pyrrolo[3,2-b]pyrrole core. It is now also possible
to prepare 1,4-dihydropyrrolo[3,2-b]pyrroles bearing
an ordered arrangement of N-substituents and C-substituents ranging from coumarin, quinoline, phthalimide
to truxene. These advances in scope enable independent regulations
of many desired photophysical properties, including the Stokes shift
value and emission color ranging from violet-blue through deep blue,
green, yellow to red. Simultaneously, the optimized conditions have
finally allowed the synthesis of these extremely promising heterocycles
in amounts of more than 10 g per run without a concomitant decrease
in yield or product contamination. Empowered with better functional
group compatibility, novel derivatization strategies were developed.
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Affiliation(s)
- Mariusz Tasior
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224 Warsaw, Poland
| | - Olena Vakuliuk
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224 Warsaw, Poland
| | - Daiki Koga
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224 Warsaw, Poland
| | - Beata Koszarna
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224 Warsaw, Poland
| | - Krzysztof Górski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224 Warsaw, Poland
| | - Marek Grzybowski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224 Warsaw, Poland
| | - Łukasz Kielesiński
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224 Warsaw, Poland
| | - Maciej Krzeszewski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224 Warsaw, Poland
| | - Daniel T Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224 Warsaw, Poland
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16
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Santos FMF, Domínguez Z, Fernandes JPL, Parente Carvalho C, Collado D, Pérez-Inestrosa E, Pinto MV, Fernandes A, Arteaga JF, Pischel U, Gois PMP. Cyanine-Like Boronic Acid-Derived Salicylidenehydrazone Complexes (Cy-BASHY) for Bioimaging Applications. Chemistry 2020; 26:14064-14069. [PMID: 32449571 DOI: 10.1002/chem.202001623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Indexed: 12/14/2022]
Abstract
Boronic acid-derived salicylidenehydrazone complex (BASHY) dyes with a polymethine backbone were designed to yield efficient red-emitting and two-photon absorbing fluorophores that can be used as markers for astrocytes. The dyes are chemically stable in aqueous solution and do not undergo photodecomposition. Their photophysical properties can be electronically fine-tuned and thereby adapted to potentially different imaging situations and requirements.
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Affiliation(s)
- Fábio M F Santos
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Zoe Domínguez
- CIQSO-Centre for Research in Sustainable Chemistry and Department of, Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - João P L Fernandes
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Cátia Parente Carvalho
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Daniel Collado
- Department of Organic Chemistry, University of Málaga IBIMA, Campus Teatinos s/n, 29071, Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND Parque Tecnológico de Andalucía, 29590, Málaga, Spain
| | - Ezequiel Pérez-Inestrosa
- Department of Organic Chemistry, University of Málaga IBIMA, Campus Teatinos s/n, 29071, Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND Parque Tecnológico de Andalucía, 29590, Málaga, Spain
| | - Maria V Pinto
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Adelaide Fernandes
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Jesús F Arteaga
- CIQSO-Centre for Research in Sustainable Chemistry and Department of, Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - Uwe Pischel
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal.,CIQSO-Centre for Research in Sustainable Chemistry and Department of, Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboba), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
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17
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Haque A, Al-Balushi RA, Raithby PR, Khan MS. Recent Advances in π-Conjugated N^C-Chelate Organoboron Materials. Molecules 2020; 25:E2645. [PMID: 32517244 PMCID: PMC7321365 DOI: 10.3390/molecules25112645] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/03/2020] [Accepted: 06/04/2020] [Indexed: 11/17/2022] Open
Abstract
Boron-containing π-conjugated materials are archetypical candidates for a variety of molecular scale applications. The incorporation of boron into the π-conjugated frameworks significantly modifies the nature of the parent π-conjugated systems. Several novel boron-bridged π-conjugated materials with intriguing structural, photo-physical and electrochemical properties have been reported over the last few years. In this paper, we review the properties and multi-dimensional applications of the boron-bridged fused-ring π-conjugated systems. We critically highlight the properties of π-conjugated N^C-chelate organoboron materials. This is followed by a discussion on the potential applications of the new materials in opto-electronics (O-E) and other areas. Finally, attempts will be made to predict the future direction/outlook for this class of materials.
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Affiliation(s)
- Ashanul Haque
- Department of Chemistry, College of Science, University of Hail, Ha’il 81451, Saudi Arabia
| | - Rayya A. Al-Balushi
- Department of Basic Sciences, College of Applied and Health Sciences, A’Sharqiyah University, P.O. Box 42, Ibra 400, Sultanate of Oman;
| | - Paul R. Raithby
- Department of Chemistry, University of Bath, Claverton Down BA2 7AY, UK
| | - Muhammad S. Khan
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al-Khod 123, Sultanate of Oman
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18
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Augmenting Peptide Flexibility by Inserting Gamma-Aminobutyric Acid (GABA) in Their Sequence. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-020-10054-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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19
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Koch R, Sun Y, Orthaber A, Pierik AJ, Pammer F. Turn-on fluorescence sensors based on dynamic intramolecular N→B-coordination. Org Chem Front 2020. [DOI: 10.1039/d0qo00267d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A series of ten aryl-triazole-functionalized boranes bearing BMes2-groups and capable of forming intramolecular five-membered N→B-coordinated heterocycles, has been prepared by 1,3-dipolar cycloaddition.
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Affiliation(s)
- Raphael Koch
- Institute of Organic Chemistry II and Advanced Materials
- University of Ulm
- 89081 Ulm
- Germany
| | - Yu Sun
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- D-67663 Kaiserslautern
- Germany
| | - Andreas Orthaber
- Department of Chemistry – Ångström laboratories
- Uppsala University
- 75120 Uppsala
- Sweden
| | - Antonio J. Pierik
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- D-67663 Kaiserslautern
- Germany
| | - Frank Pammer
- Institute of Organic Chemistry II and Advanced Materials
- University of Ulm
- 89081 Ulm
- Germany
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20
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Ni S, Bai FY, Pan XM. Can nitrous acid contribute to atmospheric new particle formation from nitric acid and water? NEW J CHEM 2020. [DOI: 10.1039/d0nj02992k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The properties of (HNO3)(HONO)(H2O)n (n = 1–6) clusters are reported including thermodynamics, structures, temperature-dependence, intermolecular forces, optical properties, and evaporation rates.
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Affiliation(s)
- Shuang Ni
- Institute of Functional Material Chemistry
- National & Local United Engineering Lab for Power Battery
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
| | - Feng-Yang Bai
- Institute of Catalysis for Energy and Environment
- College of Chemistry and Chemical Engineering
- Shenyang Normal University
- Shenyang
- People's Republic of China
| | - Xiu-Mei Pan
- Institute of Functional Material Chemistry
- National & Local United Engineering Lab for Power Battery
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
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21
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Vanga M, Sa S, Kumari A, Murali AC, Nayak P, Das R, Venkatasubbaiah K. Synthesis of π-extended B ← N coordinated phenanthroimidazole dimers and their linear and nonlinear optical properties. Dalton Trans 2020; 49:7737-7746. [DOI: 10.1039/d0dt01024c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
B ← N coordinated phenanthroimidazole dimers exhibit excellent fluorescence quantum yields in solution and conjugation length dependant two-photon-absorption properties.
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Affiliation(s)
- Mukundam Vanga
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- HBNI
- Bhubaneswar-752050
- India
| | - Shreenibasa Sa
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- HBNI
- Bhubaneswar-752050
- India
| | - Anupa Kumari
- School of Physical Sciences
- National Institute of Science Education and Research (NISER)
- HBNI
- Bhubaneswar-752050
- India
| | - Anna Chandrasekar Murali
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- HBNI
- Bhubaneswar-752050
- India
| | - Prakash Nayak
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- HBNI
- Bhubaneswar-752050
- India
| | - Ritwick Das
- School of Physical Sciences
- National Institute of Science Education and Research (NISER)
- HBNI
- Bhubaneswar-752050
- India
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- HBNI
- Bhubaneswar-752050
- India
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22
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Pais VF, Neumann T, Vayá I, Jiménez MC, Ros A, Pischel U. Arylisoquinoline-derived organoboron dyes with a triaryl skeleton show dual fluorescence. Beilstein J Org Chem 2019; 15:2612-2622. [PMID: 31807196 PMCID: PMC6880824 DOI: 10.3762/bjoc.15.254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 10/14/2019] [Indexed: 12/31/2022] Open
Abstract
Four new dyes that derive from borylated arylisoquinolines were prepared, containing a third aryl residue (naphthyl, 4-methoxynaphthyl, pyrenyl or anthryl) that is linked via an additional stereogenic axis. The triaryl cores were synthesized by Suzuki couplings and then transformed into boronic acid esters by employing an Ir(I)-catalyzed reaction. The chromophores show dual emission behavior, where the long-wavelength emission band can reach maxima close to 600 nm in polar solvents. The fluorescence quantum yields of the dyes are generally in the range of 0.2-0.4, reaching in some cases values as high as 0.5-0.6. Laser-flash photolysis provided evidence for the existence of excited triplet states. The dyes form fluoroboronate complexes with fluoride anions, leading to the observation of the quenching of the long-wavelength emission band and ratiometric response by the build-up of a hypsochromically shifted emission signal.
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Affiliation(s)
- Vânia F Pais
- CIQSO – Centre for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
| | - Tristan Neumann
- CIQSO – Centre for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
| | - Ignacio Vayá
- Department of Chemistry/Institute of Chemical Technology UPV-CSIC, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - M Consuelo Jiménez
- Department of Chemistry/Institute of Chemical Technology UPV-CSIC, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Abel Ros
- Institute for Chemical Research (CSIC-US) and Innovation Center in Advanced Chemistry (ORFEO−CINQA), C/ Américo Vespucio 49, 41092 Seville, Spain
- Department of Organic Chemistry, University of Seville, C/ Prof. García González 1, 41012 Seville, Spain
| | - Uwe Pischel
- CIQSO – Centre for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071 Huelva, Spain
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23
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Domínguez Z, Pais VF, Collado D, Vázquez-Domínguez P, Albendín FN, Pérez-Inestrosa E, Ros A, Pischel U. π-Extended Four-Coordinate Organoboron N,C-Chelates as Two-Photon Absorbing Chromophores. J Org Chem 2019; 84:13384-13393. [PMID: 31523970 DOI: 10.1021/acs.joc.9b01542] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Four-coordinate N,C-chelate organoboron dyes with alkynyl spacers were synthesized by Heck alkynylation. These dyes are π-extended analogues of the recently reported class of four-coordinate borylated arylisoquinolines (BAI). Depending on the electron-donor substitution, they feature an intramolecular charge-transfer (ICT) character in the excited state. This translates into pronounced apparent Stokes shifts (up to 8500 cm-1) and a solvatofluorochromic behavior. In general, the observed emission quantum yields are high in nonpolar media (ΦF ca. 0.5-0.6). For the dye with the most pronounced ICT rather high emission quantum yields (ΦF ca. 0.4) are observed for emissions with maxima longer than 600 nm in solvents of moderate polarity. The π-extended dyes show interesting two-photon absorption (TPA) properties, maintaining high cross sections (up to 60 GM) in the near-infrared wavelength window (>900 nm). One of the dyes was designed as dimeric chromophore, integrating the acceptor-π-acceptor (A-π-A) format. This alternative design showed no ICT behavior but led to the observation of high two-photon-absorption (TPA) cross sections (ca. 220 GM at 700 nm). All investigated dyes show pronounced photostability, providing added value to this structural and photofunctional extension of the BAI dye platform.
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Affiliation(s)
- Zoe Domínguez
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemistry , University of Huelva , Campus de El Carmen s/n , 21071 Huelva , Spain
| | - Vânia F Pais
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemistry , University of Huelva , Campus de El Carmen s/n , 21071 Huelva , Spain
| | - Daniel Collado
- Department of Organic Chemistry , University of Malaga, IBIMA , Campus Teatinos s/n , 29071 Málaga , Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND, Parque Tecnológico de Andalucía , 29590 Málaga , Spain
| | - Pablo Vázquez-Domínguez
- Institute for Chemical Research (CSIC-US) and Innovation-Center in Advanced Chemistry (ORFEO-CINQA) , C/Américo Vespucio 49 , 41092 Seville , Spain.,Department of Organic Chemistry , University of Seville , C/Prof. García González 1 , 41012 Seville , Spain
| | - Francisco Nájera Albendín
- Department of Organic Chemistry , University of Malaga, IBIMA , Campus Teatinos s/n , 29071 Málaga , Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND, Parque Tecnológico de Andalucía , 29590 Málaga , Spain
| | - Ezequiel Pérez-Inestrosa
- Department of Organic Chemistry , University of Malaga, IBIMA , Campus Teatinos s/n , 29071 Málaga , Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND, Parque Tecnológico de Andalucía , 29590 Málaga , Spain
| | - Abel Ros
- Institute for Chemical Research (CSIC-US) and Innovation-Center in Advanced Chemistry (ORFEO-CINQA) , C/Américo Vespucio 49 , 41092 Seville , Spain.,Department of Organic Chemistry , University of Seville , C/Prof. García González 1 , 41012 Seville , Spain
| | - Uwe Pischel
- CIQSO - Center for Research in Sustainable Chemistry and Department of Chemistry , University of Huelva , Campus de El Carmen s/n , 21071 Huelva , Spain
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24
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Chen S, Liu F, Wang C, Shen J, Wu Y. Simple Route to Synthesize Fully Conjugated Ladder Isomer Copolymers with Carbazole Units. Polymers (Basel) 2019; 11:polym11101619. [PMID: 31591357 PMCID: PMC6835825 DOI: 10.3390/polym11101619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 11/25/2022] Open
Abstract
Two isomer polymers, P3 and P6, with fully conjugated ladder structures are presented by simple synthetic routes. The well-defined structures of fully conjugated ladder polymers P3 and P6 were ensured by the high yields of every reaction step. The fully rigid ladder structures were confirmed by nuclear magnetic resonance (NMR), fourier transform infrared spectroscopy (FTIR), and photophysical test. Polymers P3 and P6 with bulky alkyl side chains exhibit good solution processability and desirable thermostable properties. After the intramolecular cyclization reaction, the band gaps of polymers P3 and P6 become lower (2.86 eV and 2.66 eV, respectively) compared with polymers P1 and P4. This initial study provides insight for the rational design of fully ladder-conjugated isomeric polymers with well-defined structures.
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Affiliation(s)
- Shuang Chen
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China.
| | - Feng Liu
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China.
- College of Physics Science and Technology, Hebei University, Baoding 071002, China.
| | - Chao Wang
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China.
| | - Jinghui Shen
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China.
| | - Yonggang Wu
- College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China.
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25
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Pischel U. Photochemistry in Huelva: Light for Triggering, Controlling, and Monitoring Chemical Processes. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Uwe Pischel
- CIQSO – Centre for Research in Sustainable Chemistry and Department of ChemistryUniversity of Huelva Campus de El Carmen s/n E-21071 Huelva Spain
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26
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Chinta RVRN, Aradhyula BPR, Murali AC, Venkatasubbaiah K. Synthesis, photophysical and electrochemical properties of naphthaldimine based boron complexes. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Vanga M, Lalancette RA, Jäkle F. Controlling the Optoelectronic Properties of Pyrene by Regioselective Lewis Base‐Directed Electrophilic Aromatic Borylation. Chemistry 2019; 25:10133-10140. [DOI: 10.1002/chem.201901231] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Mukundam Vanga
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Roger A. Lalancette
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Frieder Jäkle
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
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28
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Liu K, Lalancette RA, Jäkle F. Tuning the Structure and Electronic Properties of B–N Fused Dipyridylanthracene and Implications on the Self-Sensitized Reactivity with Singlet Oxygen. J Am Chem Soc 2019; 141:7453-7462. [DOI: 10.1021/jacs.9b01958] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kanglei Liu
- Department of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Roger A. Lalancette
- Department of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
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29
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Kunchala D, Sa S, Nayak P, Ponniah S J, Venkatasubbaiah K. Tetrahydrodibenzophenanthridine-Based Boron-Bridged Polycyclic Aromatic Hydrocarbons: Synthesis, Structural Diversity, and Optical Properties. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00853] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dhanunjayarao Kunchala
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar 752050, Odisha, India
| | - Shreenibasa Sa
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar 752050, Odisha, India
| | - Prakash Nayak
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar 752050, Odisha, India
| | - Joseph Ponniah S
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar 752050, Odisha, India
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar 752050, Odisha, India
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30
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Yang K, Zhang G, Song Q. Four-coordinate triarylborane synthesis via cascade B-Cl/C-B cross-metathesis and C-H bond borylation. Chem Sci 2018; 9:7666-7672. [PMID: 30393527 PMCID: PMC6182419 DOI: 10.1039/c8sc02281j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/10/2018] [Indexed: 12/29/2022] Open
Abstract
To develop a simple and efficient synthetic method for four-coordinate triarylboranes, we herein describe a tandem highly selective B-Cl/C-B cross-metathesis of two of the same or different arylboranes and C-H bond borylation to synthesize four-coordinate triarylboranes with a broad substrate scope. By switching substituent groups of the target molecules, different emission wavelengths can be achieved from 467 nm to 583 nm with aggregation-induced emission (AIE) properties.
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Affiliation(s)
- Kai Yang
- Institute of Next Generation Matter Transformation , College of Chemical Engineering , College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard , Xiamen , Fujian 361021 , P. R. China .
| | - Guan Zhang
- Institute of Next Generation Matter Transformation , College of Chemical Engineering , College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard , Xiamen , Fujian 361021 , P. R. China .
| | - Qiuling Song
- Institute of Next Generation Matter Transformation , College of Chemical Engineering , College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard , Xiamen , Fujian 361021 , P. R. China .
- State Key Laboratroy of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , Shanghai 200032 , P. R. China
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31
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Mellerup SK, Li C, Wang X, Wang S. Controlling Isomerization Selectivity in Chiral, Photochromic N,C-Chelate Organoboron Systems with Extended π-Conjugation. J Org Chem 2018; 83:11970-11977. [PMID: 30178675 DOI: 10.1021/acs.joc.8b01856] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Alkyne-functionalized chelate boron compounds with extended π-conjugation on one of the aryl groups attached to boron display thermally reversible and regioselective isomerization on the more delocalized substituent, forming base-stabilized boriranes with an intense color. Linking two of such boron chromophores through a 1,4-phenylene spacer via ethynyl moieties leads to photochemically inert molecules, while connecting them by a nonconjugated silicon bridge yields photochromic systems capable of switching at a single boron center.
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Affiliation(s)
- Soren K Mellerup
- Department of Chemistry , Queen's University , Kingston , Ontario K7L 3N6 , Canada
| | - Cally Li
- Department of Chemistry , Queen's University , Kingston , Ontario K7L 3N6 , Canada
| | - Xiang Wang
- Department of Chemistry , Queen's University , Kingston , Ontario K7L 3N6 , Canada
| | - Suning Wang
- Department of Chemistry , Queen's University , Kingston , Ontario K7L 3N6 , Canada
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32
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Zhang X, Shi J, Song J, Wang M, Xu X, Qu L, Zhou X, Xiang H. Nonconjugated Fluorescent Molecular Cages of Trinuclear Fluoroborate Complexes with Salicylaldehyde-Based Schiff Base Ligands. ACS OMEGA 2018; 3:8992-9002. [PMID: 31459032 PMCID: PMC6644785 DOI: 10.1021/acsomega.8b01504] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 07/31/2018] [Indexed: 02/05/2023]
Abstract
Fluorescent organic materials are commonly π-conjugated planar molecules. In the present work, however, we report a novel class of nonconjugated fluorescent molecular cages of trinuclear fluoroborate complexes (nine samples) with salicylaldehyde-based Schiff base ligands. Owing to the stress from lone pair electrons of N atom in the triethylamine bridge, these B(III) complexes exhibit unusual enantiomers with a tripodlike side-single-opening structure. They emit blue, green, and red emission with large Stokes shifts (up to 159 nm) and high fluorescence quantum yields in both solution (up to 0.24) and solid state (up to 0.25), which might contribute to their strong intramolecular hydrogen bonds and weak intermolecular and intramolecular π-π interactions. Combining their advantages of nonconjugation and biocompatibility, these flexible complexes have potential applications in living cell imaging and anion hosts. We have examined the inherent relationships between their chemical structures and emission properties and afforded a new stage for the design of nonconjugated fluorescent fluoroborate complexes.
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Affiliation(s)
- Xiaohong Zhang
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Jun Shi
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, 37 Guoxue Xiang Street, Chengdu 610041, Sichuan, China
| | - Jintong Song
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Man Wang
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Xuemei Xu
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Lang Qu
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Xiangge Zhou
- College of Chemistry, Sichuan University, Chengdu 610041, China
| | - Haifeng Xiang
- College of Chemistry, Sichuan University, Chengdu 610041, China
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33
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Sambiagio C, Schönbauer D, Blieck R, Dao-Huy T, Pototschnig G, Schaaf P, Wiesinger T, Zia MF, Wencel-Delord J, Besset T, Maes BUW, Schnürch M. A comprehensive overview of directing groups applied in metal-catalysed C-H functionalisation chemistry. Chem Soc Rev 2018; 47:6603-6743. [PMID: 30033454 PMCID: PMC6113863 DOI: 10.1039/c8cs00201k] [Citation(s) in RCA: 1077] [Impact Index Per Article: 179.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 12/20/2022]
Abstract
The present review is devoted to summarizing the recent advances (2015-2017) in the field of metal-catalysed group-directed C-H functionalisation. In order to clearly showcase the molecular diversity that can now be accessed by means of directed C-H functionalisation, the whole is organized following the directing groups installed on a substrate. Its aim is to be a comprehensive reference work, where a specific directing group can be easily found, together with the transformations which have been carried out with it. Hence, the primary format of this review is schemes accompanied with a concise explanatory text, in which the directing groups are ordered in sections according to their chemical structure. The schemes feature typical substrates used, the products obtained as well as the required reaction conditions. Importantly, each example is commented on with respect to the most important positive features and drawbacks, on aspects such as selectivity, substrate scope, reaction conditions, directing group removal, and greenness. The targeted readership are both experts in the field of C-H functionalisation chemistry (to provide a comprehensive overview of the progress made in the last years) and, even more so, all organic chemists who want to introduce the C-H functionalisation way of thinking for a design of straightforward, efficient and step-economic synthetic routes towards molecules of interest to them. Accordingly, this review should be of particular interest also for scientists from industrial R&D sector. Hence, the overall goal of this review is to promote the application of C-H functionalisation reactions outside the research groups dedicated to method development and establishing it as a valuable reaction archetype in contemporary R&D, comparable to the role cross-coupling reactions play to date.
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Affiliation(s)
- Carlo Sambiagio
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - David Schönbauer
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Remi Blieck
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Toan Dao-Huy
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Gerit Pototschnig
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Patricia Schaaf
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Thomas Wiesinger
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Muhammad Farooq Zia
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Joanna Wencel-Delord
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509)
, Université de Strasbourg
,
ECPM 25 Rue Becquerel
, 67087 Strasbourg
, France
| | - Tatiana Besset
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Bert U. W. Maes
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
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34
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Domínguez Z, López-Rodríguez R, Álvarez E, Abbate S, Longhi G, Pischel U, Ros A. Azabora[5]helicene Charge-Transfer Dyes Show Efficient and Spectrally Variable Circularly Polarized Luminescence. Chemistry 2018; 24:12660-12668. [DOI: 10.1002/chem.201801908] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Zoe Domínguez
- CIQSO-Centre for Research in Sustainable Chemistry and Department of Chemistry; University of Huelva; Campus de El Carmen s/n E-21071 Huelva Spain
| | - Rocío López-Rodríguez
- Institute for Chemical Research (CSIC-US); C/Américo Vespucio 49 E-41092 Seville Spain
- Department of Organic Chemistry and Innovation Centre in Advanced Chemistry (ORFEO-CINQA); University of Seville; C/Prof. García González 1 E-41012 Seville Spain
| | - Eleuterio Álvarez
- Institute for Chemical Research (CSIC-US); C/Américo Vespucio 49 E-41092 Seville Spain
| | - Sergio Abbate
- Department of Molecular and Translational Medicine; University of Brescia; Viale Europa 11 25123 Brescia Italy
| | - Giovanna Longhi
- Department of Molecular and Translational Medicine; University of Brescia; Viale Europa 11 25123 Brescia Italy
| | - Uwe Pischel
- CIQSO-Centre for Research in Sustainable Chemistry and Department of Chemistry; University of Huelva; Campus de El Carmen s/n E-21071 Huelva Spain
| | - Abel Ros
- Institute for Chemical Research (CSIC-US); C/Américo Vespucio 49 E-41092 Seville Spain
- Department of Organic Chemistry and Innovation Centre in Advanced Chemistry (ORFEO-CINQA); University of Seville; C/Prof. García González 1 E-41012 Seville Spain
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35
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Beerepoot MTP, Alam MM, Bednarska J, Bartkowiak W, Ruud K, Zaleśny R. Benchmarking the Performance of Exchange-Correlation Functionals for Predicting Two-Photon Absorption Strengths. J Chem Theory Comput 2018; 14:3677-3685. [DOI: 10.1021/acs.jctc.8b00245] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Maarten T. P. Beerepoot
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Md. Mehboob Alam
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Joanna Bednarska
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, PL−50370 Wrocław, Poland
| | - Wojciech Bartkowiak
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, PL−50370 Wrocław, Poland
| | - Kenneth Ruud
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Robert Zaleśny
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, PL−50370 Wrocław, Poland
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36
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Marín ÁM, Telo JP, Collado D, Nájera F, Pérez-Inestrosa E, Pischel U. Bis(dioxaborine) Dyes with Variable π-Bridges: Towards Two-Photon Absorbing Fluorophores with Very High Brightness. Chemistry 2018; 24:2929-2935. [PMID: 29244219 DOI: 10.1002/chem.201704544] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Indexed: 01/01/2023]
Abstract
Bis(dioxaborine) dyes of the A-π-A format (A: acceptor, π: conjugated bridge) were prepared and photophysically characterized. The best performing dyes feature (a) visible-light absorption (>400 nm), (b) high molar absorption coefficients (up to 70000 m-1 cm-1 ), (c) Stokes shifts in the range of ca. 2500-5800 cm-1 , and (d) strong fluorescence emission with quantum yields of up to 0.74. This yields very bright-emitting dyes for one-photon excitation. However, the most intriguing feature of the dyes is their strong two-photon absorption. This was achieved by means of increased π-conjugation in the phenylene or phenylene-thiophene bridges through the variation of the conjugation length and rigidity. This provided two-photon absorption cross sections of up to 2800 GM (1 Goeppert-Mayer (GM)=10-50 cm4 s photon-1 ). Considering the mentioned high fluorescence quantum yields, exceptionally bright-emitting A-π-A two-photon absorbing dyes with low molecular mass are obtained. Time-dependent density-functional theory calculations corroborated the experimental results.
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Affiliation(s)
- Á Moneo Marín
- CIQSO-Center for Research in Sustainable Chemistry, Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain.,Centro de Química Estructural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
| | - João P Telo
- Centro de Química Estructural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
| | - Daniel Collado
- Department of Organic Chemistry, IBIMA, University of Málaga, Campus Teatinos s/n, 29071, Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology-BIONAND, Parque Tecnológico de Andalucía, 29590, Málaga, Spain
| | - Francisco Nájera
- Department of Organic Chemistry, IBIMA, University of Málaga, Campus Teatinos s/n, 29071, Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology-BIONAND, Parque Tecnológico de Andalucía, 29590, Málaga, Spain
| | - Ezequiel Pérez-Inestrosa
- Department of Organic Chemistry, IBIMA, University of Málaga, Campus Teatinos s/n, 29071, Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology-BIONAND, Parque Tecnológico de Andalucía, 29590, Málaga, Spain
| | - Uwe Pischel
- CIQSO-Center for Research in Sustainable Chemistry, Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
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37
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Torres J, Carrión MC, Leal J, Jalón FA, Cuevas JV, Rodríguez AM, Castañeda G, Manzano BR. Cationic Bis(cyclometalated) Ir(III) Complexes with Pyridine–Carbene Ligands. Photophysical Properties and Photocatalytic Hydrogen Production from Water. Inorg Chem 2018; 57:970-984. [DOI: 10.1021/acs.inorgchem.7b02289] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | - M. Carmen Carrión
- Fundación Parque Científico y Tecnológico de Castilla-La Mancha, Bulevar Rio Alberche s/n, 45007 Toledo, Spain
| | | | | | - José V. Cuevas
- Departamento de Química,
Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Ana M. Rodríguez
- Escuela Superior de Ingenieros Industriales, Avda,
C. J. Cela, 3, 13071 Ciudad Real, Spain
| | | | | |
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38
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Boscá F, Cuquerella MC, Pais VF, Ros A, Pischel U. Excited-State Pathways of Four-Coordinate N,C-Chelate Organoboron Dyes. CHEMPHOTOCHEM 2017. [DOI: 10.1002/cptc.201700176] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Francisco Boscá
- Instituto Universitario Mixto de Tecnología Química (ITQ-UPV); Universitat Politècnica de València; Av. de los Naranjos s/n 46022 Valencia Spain
| | - M. Consuelo Cuquerella
- Instituto Universitario Mixto de Tecnología Química (ITQ-UPV); Universitat Politècnica de València; Av. de los Naranjos s/n 46022 Valencia Spain
| | - Vânia F. Pais
- CIQSO-Center for Research in Sustainable Chemistry and Department of Chemistry; University of Huelva, Campus de El Carmen s/n; 21071 Huelva Spain
- Laboratório Associado para a Química Verde (LAQV), Rede de Química e Tecnologia (REQUIMTE) and Departamento de Química, Faculdade de Ciências e Tecnologia; Universidade NOVA de Lisboa; 2829-516 Caparica Portugal
| | - Abel Ros
- Instituto de Investigaciones Químicas (IIQ, CSIC-US); C/Américo Vespucio 49 41092 Sevilla Spain
- Departamento de Química Orgánica, Centro de Innovación en Química Avanzada (ORFEO-CINQA); Universidad de Sevilla, C/Prof. García González 1; 41012 Sevilla Spain
| | - Uwe Pischel
- CIQSO-Center for Research in Sustainable Chemistry and Department of Chemistry; University of Huelva, Campus de El Carmen s/n; 21071 Huelva Spain
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39
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Hecht R, Kade J, Schmidt D, Nowak-Król A. n-Channel Organic Semiconductors Derived from Air-Stable Four-Coordinate Boron Complexes of Substituted Thienylthiazoles. Chemistry 2017; 23:11620-11628. [DOI: 10.1002/chem.201701922] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Indexed: 02/04/2023]
Affiliation(s)
- Reinhard Hecht
- Center for Nanosystems Chemistry (CNC) and Bavarian Polymer Institute (BPI); Universität Würzburg; Theodor-Boveri-Weg 97074 Würzburg Germany
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Juliane Kade
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - David Schmidt
- Center for Nanosystems Chemistry (CNC) and Bavarian Polymer Institute (BPI); Universität Würzburg; Theodor-Boveri-Weg 97074 Würzburg Germany
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Agnieszka Nowak-Król
- Center for Nanosystems Chemistry (CNC) and Bavarian Polymer Institute (BPI); Universität Würzburg; Theodor-Boveri-Weg 97074 Würzburg Germany
- Institut für Organische Chemie; Universität Würzburg; Am Hubland 97074 Würzburg Germany
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40
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Alcaide MM, Santos FMF, Pais VF, Carvalho JI, Collado D, Pérez-Inestrosa E, Arteaga JF, Boscá F, Gois PMP, Pischel U. Electronic and Functional Scope of Boronic Acid Derived Salicylidenehydrazone (BASHY) Complexes as Fluorescent Dyes. J Org Chem 2017; 82:7151-7158. [DOI: 10.1021/acs.joc.7b00601] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- María M. Alcaide
- CIQSO
− Center for Research in Sustainable Chemistry and Department
of Chemistry, University of Huelva, Campus de El Carmen s/n, E-21071 Huelva, Spain
| | - Fabio M. F. Santos
- Research
Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1600-276 Lisbon, Portugal
| | - Vânia F. Pais
- CIQSO
− Center for Research in Sustainable Chemistry and Department
of Chemistry, University of Huelva, Campus de El Carmen s/n, E-21071 Huelva, Spain
| | - Joana Inês Carvalho
- Research
Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1600-276 Lisbon, Portugal
| | - Daniel Collado
- Department
of Organic Chemistry, University of Málaga, IBIMA, Campus Teatinos
s/n, E-29071 Málaga, Spain
- Andalusian
Center for Nanomedicine and Biotechnology − BIONAND, Parque Tecnológico de Andalucía, E-29590 Málaga, Spain
| | - Ezequiel Pérez-Inestrosa
- Department
of Organic Chemistry, University of Málaga, IBIMA, Campus Teatinos
s/n, E-29071 Málaga, Spain
- Andalusian
Center for Nanomedicine and Biotechnology − BIONAND, Parque Tecnológico de Andalucía, E-29590 Málaga, Spain
| | - Jesús F. Arteaga
- CIQSO
− Center for Research in Sustainable Chemistry and Department
of Chemistry, University of Huelva, Campus de El Carmen s/n, E-21071 Huelva, Spain
| | - Francisco Boscá
- Institute
of Chemical Technology (CSIC-UPV), Polytechnical University of Valencia, Av. de los Naranjos s/n, E-46022 Valencia, Spain
| | - Pedro M. P. Gois
- Research
Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1600-276 Lisbon, Portugal
| | - Uwe Pischel
- CIQSO
− Center for Research in Sustainable Chemistry and Department
of Chemistry, University of Huelva, Campus de El Carmen s/n, E-21071 Huelva, Spain
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41
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Zhu C, Fang L. Locking the Coplanar Conformation of π‐Conjugated Molecules and Macromolecules Using Dynamic Noncovalent Bonds. Macromol Rapid Commun 2017; 39. [DOI: 10.1002/marc.201700241] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 05/22/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Congzhi Zhu
- Department of Chemistry Texas A&M University College Station TX 77843‐3255 USA
| | - Lei Fang
- Department of Chemistry Texas A&M University College Station TX 77843‐3255 USA
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42
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Chen N, Zhang W, Chen S, Wu Q, Yu C, Wei Y, Xu Y, Hao E, Jiao L. Sterically Protected N2O-Type Benzopyrromethene Boron Complexes from Boronic Acids with Intense Red/Near-Infrared Fluorescence. Org Lett 2017; 19:2026-2029. [DOI: 10.1021/acs.orglett.7b00601] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Na Chen
- Laboratory of Functional Molecular Solids, Ministry of Education;
School of Chemistry and Materials Science and ‡School of Life Science, Anhui Normal University, Wuhu 241000, China
| | - Wenjie Zhang
- Laboratory of Functional Molecular Solids, Ministry of Education;
School of Chemistry and Materials Science and ‡School of Life Science, Anhui Normal University, Wuhu 241000, China
| | - Shun Chen
- Laboratory of Functional Molecular Solids, Ministry of Education;
School of Chemistry and Materials Science and ‡School of Life Science, Anhui Normal University, Wuhu 241000, China
| | - Qinghua Wu
- Laboratory of Functional Molecular Solids, Ministry of Education;
School of Chemistry and Materials Science and ‡School of Life Science, Anhui Normal University, Wuhu 241000, China
| | - Changjiang Yu
- Laboratory of Functional Molecular Solids, Ministry of Education;
School of Chemistry and Materials Science and ‡School of Life Science, Anhui Normal University, Wuhu 241000, China
| | - Yun Wei
- Laboratory of Functional Molecular Solids, Ministry of Education;
School of Chemistry and Materials Science and ‡School of Life Science, Anhui Normal University, Wuhu 241000, China
| | - Yuekang Xu
- Laboratory of Functional Molecular Solids, Ministry of Education;
School of Chemistry and Materials Science and ‡School of Life Science, Anhui Normal University, Wuhu 241000, China
| | - Erhong Hao
- Laboratory of Functional Molecular Solids, Ministry of Education;
School of Chemistry and Materials Science and ‡School of Life Science, Anhui Normal University, Wuhu 241000, China
| | - Lijuan Jiao
- Laboratory of Functional Molecular Solids, Ministry of Education;
School of Chemistry and Materials Science and ‡School of Life Science, Anhui Normal University, Wuhu 241000, China
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43
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Carboni V, Su X, Qian H, Aprahamian I, Credi A. Blue‐Light‐Emitting Triazolopyridinium and Triazoloquinolinium Salts. CHEMPHOTOCHEM 2017. [DOI: 10.1002/cptc.201600048] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Valentina Carboni
- Dipartimento di Chimica “G. Ciamician” Università di Bologna Via Selmi 2 40126 Bologna Italy
- Present address: Smart Hybrid Materials Laboratory King Abdullah University of Science and Technology Al-Jazri Building, level 3, 3287-WS06 Thuwal 23955 Saudi Arabia
| | - Xin Su
- Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Hai Qian
- Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Ivan Aprahamian
- Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Alberto Credi
- Dipartimento di Chimica “G. Ciamician” Università di Bologna Via Selmi 2 40126 Bologna Italy
- Dipartimento di Scienze e Tecnologie Agro-alimentari Università di Bologna Viale Fanin 50 40127 Bologna Italy
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44
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Shen C, Srebro-Hooper M, Jean M, Vanthuyne N, Toupet L, Williams JAG, Torres AR, Riives AJ, Muller G, Autschbach J, Crassous J. Synthesis and Chiroptical Properties of Hexa-, Octa-, and Deca-azaborahelicenes: Influence of Helicene Size and of the Number of Boron Atoms. Chemistry 2016; 23:407-418. [PMID: 27754565 DOI: 10.1002/chem.201604398] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Indexed: 11/09/2022]
Abstract
Four members of a new class of cycloborylated hexa-, octa-, and deca-helicenes (1 a-d) have been prepared in enantiopure form, along with two cycloplatinated deca-helicenes (1 d', 1 d1 ), further extending the family of cycloplatinated hexa- and octa-helicenes reported previously. The azabora[n]helicenes display intense electronic circular dichroism and large optical rotations; the dependence of the optical activity on the size of the helix (n=6, 8, 10) and the number of boron atoms (1 or 2) has been examined in detail both experimentally and theoretically. The photophysical properties (nonpolarized and circularly polarized luminescence) of these new fluorescent organic helicenes have been measured and compared with the corresponding organometallic phosphorescent cycloplatinated derivatives (1 a1 -d1 ).
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Affiliation(s)
- Chengshuo Shen
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042, Rennes Cedex, France
| | - Monika Srebro-Hooper
- Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060, Krakow, Poland
| | - Marion Jean
- Aix Marseille University, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Nicolas Vanthuyne
- Aix Marseille University, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Loïc Toupet
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042, Rennes Cedex, France
| | | | - Alexis R Torres
- Department of Chemistry, San José State University, San José, CA, 95192-0101, USA
| | - Adrian J Riives
- Department of Chemistry, San José State University, San José, CA, 95192-0101, USA
| | - Gilles Muller
- Department of Chemistry, San José State University, San José, CA, 95192-0101, USA
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo - State University of New York, Buffalo, NY, 14260, USA
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042, Rennes Cedex, France
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45
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Frath D, Benelhadj K, Munch M, Massue J, Ulrich G. Polyanils and Polyboranils: Synthesis, Optical Properties, and Aggregation-Induced Emission. J Org Chem 2016; 81:9658-9668. [DOI: 10.1021/acs.joc.6b01756] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Denis Frath
- Institut de chimie et procédés
pour l’énergie, l’environnement et la santé
(ICPEES), groupe Chimie Organique pour les Matériaux, la Biologie
et l’Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, Strasbourg 67087 Cedex 2, France
| | - Karima Benelhadj
- Institut de chimie et procédés
pour l’énergie, l’environnement et la santé
(ICPEES), groupe Chimie Organique pour les Matériaux, la Biologie
et l’Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, Strasbourg 67087 Cedex 2, France
| | - Maxime Munch
- Institut de chimie et procédés
pour l’énergie, l’environnement et la santé
(ICPEES), groupe Chimie Organique pour les Matériaux, la Biologie
et l’Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, Strasbourg 67087 Cedex 2, France
| | - Julien Massue
- Institut de chimie et procédés
pour l’énergie, l’environnement et la santé
(ICPEES), groupe Chimie Organique pour les Matériaux, la Biologie
et l’Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, Strasbourg 67087 Cedex 2, France
| | - Gilles Ulrich
- Institut de chimie et procédés
pour l’énergie, l’environnement et la santé
(ICPEES), groupe Chimie Organique pour les Matériaux, la Biologie
et l’Optique (COMBO), UMR CNRS 7515, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), 25 Rue Becquerel, Strasbourg 67087 Cedex 2, France
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46
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Pais VF, Ramírez-López P, Romero-Arenas A, Collado D, Nájera F, Pérez-Inestrosa E, Fernández R, Lassaletta JM, Ros A, Pischel U. Red-Emitting Tetracoordinate Organoboron Chelates: Synthesis, Photophysical Properties, and Fluorescence Microscopy. J Org Chem 2016; 81:9605-9611. [PMID: 27689446 DOI: 10.1021/acs.joc.6b01569] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Seven tetracoordinate organoboron fluorophores with heterobiaryl N,O- or N,N-chelate ligands were prepared and photophysically characterized (in toluene). The electronic variation of the heteroaromatic moiety provided a means for the fine-tuning of the UV/vis absorption and emission spectra. In the most interesting cases, the spectra were red-shifted to maximum absorbance at wavelengths longer than 500 nm and emission maxima between 620 and 660 nm. The pronounced intramolecular charge-transfer character of the dyes yielded large Stokes shifts (3500-5100 cm-1), while maintaining appreciable fluorescence quantum yields of up to 0.2 for emission maxima longer than 600 nm. The lipophilic character of the dyes enabled their application as stains of vesicle substructures in confocal fluorescence microscopy imaging.
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Affiliation(s)
- Vânia F Pais
- CIQSO, Center for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva , Campus de El Carmen s/n, 21071 Huelva, Spain
| | - Pedro Ramírez-López
- Institute for Chemical Research (CSIC-US) and Innovation-Center in Advanced Chemistry (ORFEO-CINQA) , C/Américo Vespucio 49, 41092 Seville, Spain
| | - Antonio Romero-Arenas
- Institute for Chemical Research (CSIC-US) and Innovation-Center in Advanced Chemistry (ORFEO-CINQA) , C/Américo Vespucio 49, 41092 Seville, Spain
| | - Daniel Collado
- Department of Organic Chemistry, University of Málaga, IBIMA , Campus Teatinos s/n, 29071 Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND , Parque Tecnológico de Andalucía, 29590 Málaga, Spain
| | - Francisco Nájera
- Department of Organic Chemistry, University of Málaga, IBIMA , Campus Teatinos s/n, 29071 Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND , Parque Tecnológico de Andalucía, 29590 Málaga, Spain
| | - Ezequiel Pérez-Inestrosa
- Department of Organic Chemistry, University of Málaga, IBIMA , Campus Teatinos s/n, 29071 Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology, BIONAND , Parque Tecnológico de Andalucía, 29590 Málaga, Spain
| | - Rosario Fernández
- Department of Organic Chemistry, University of Seville , and Innovation Center in Advanced Chemistry (ORFEO-CINQA), C/Prof. García González 1, 41012 Seville, Spain
| | - José M Lassaletta
- Institute for Chemical Research (CSIC-US) and Innovation-Center in Advanced Chemistry (ORFEO-CINQA) , C/Américo Vespucio 49, 41092 Seville, Spain
| | - Abel Ros
- Institute for Chemical Research (CSIC-US) and Innovation-Center in Advanced Chemistry (ORFEO-CINQA) , C/Américo Vespucio 49, 41092 Seville, Spain.,Department of Organic Chemistry, University of Seville , and Innovation Center in Advanced Chemistry (ORFEO-CINQA), C/Prof. García González 1, 41012 Seville, Spain
| | - Uwe Pischel
- CIQSO, Center for Research in Sustainable Chemistry and Department of Chemistry, University of Huelva , Campus de El Carmen s/n, 21071 Huelva, Spain
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47
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Bachollet SPJT, Volz D, Fiser B, Münch S, Rönicke F, Carrillo J, Adams H, Schepers U, Gómez-Bengoa E, Bräse S, Harrity JPA. A Modular Class of Fluorescent Difluoroboranes: Synthesis, Structure, Optical Properties, Theoretical Calculations and Applications for Biological Imaging. Chemistry 2016; 22:12430-8. [DOI: 10.1002/chem.201601915] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Sylvestre P. J. T. Bachollet
- Department of Chemistry; University of Sheffield; Brook Hill Sheffield S3 7HF UK
- Institute of Organic Chemistry; Karlsruhe Institute of Technology; Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Daniel Volz
- Cynora GmbH; Werner-von-Siemens-Straße 2-6 76646 Bruchsal Germany
| | - Béla Fiser
- Departamento de Química Organica I; Universidad del País Vasco; Manuel Lardizabal 3 20018 San Sebastian Spain
| | - Stephan Münch
- Institute of Organic Chemistry; Karlsruhe Institute of Technology; Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Franziska Rönicke
- Institute of Toxicology and Genetics; Karlsruhe Institute of Technology; Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Jokin Carrillo
- Department of Chemistry; University of Sheffield; Brook Hill Sheffield S3 7HF UK
| | - Harry Adams
- Department of Chemistry; University of Sheffield; Brook Hill Sheffield S3 7HF UK
| | - Ute Schepers
- Institute of Toxicology and Genetics; Karlsruhe Institute of Technology; Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Enrique Gómez-Bengoa
- Departamento de Química Organica I; Universidad del País Vasco; Manuel Lardizabal 3 20018 San Sebastian Spain
| | - Stefan Bräse
- Institute of Organic Chemistry; Karlsruhe Institute of Technology; Fritz-Haber-Weg 6 76131 Karlsruhe Germany
- Institute of Toxicology and Genetics; Karlsruhe Institute of Technology; Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Joseph P. A. Harrity
- Department of Chemistry; University of Sheffield; Brook Hill Sheffield S3 7HF UK
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48
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Santos FMF, Rosa JN, Candeias NR, Carvalho CP, Matos AI, Ventura AE, Florindo HF, Silva LC, Pischel U, Gois PMP. A Three-Component Assembly Promoted by Boronic Acids Delivers a Modular Fluorophore Platform (BASHY Dyes). Chemistry 2016; 22:1631-7. [PMID: 26691630 PMCID: PMC4738427 DOI: 10.1002/chem.201503943] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Indexed: 12/14/2022]
Abstract
The modular assembly of boronic acids with Schiff-base ligands enabled the construction of innovative fluorescent dyes [boronic acid salicylidenehydrazone (BASHY)] with suitable structural and photophysical properties for live cell bioimaging applications. This reaction enabled the straightforward synthesis (yields up to 99%) of structurally diverse and photostable dyes that exhibit a polarity-sensitive green-to-yellow emission with high quantum yields of up to 0.6 in nonpolar environments. These dyes displayed a high brightness (up to 54,000 M(-1) cm(-1)). The promising structural and fluorescence properties of BASHY dyes fostered the preparation of non-cytotoxic, stable, and highly fluorescent poly(lactide-co-glycolide) nanoparticles that were effectively internalized by dendritic cells. The dyes were also shown to selectively stain lipid droplets in HeLa cells, without inducing any appreciable cytotoxicity or competing plasma membrane labeling; this confirmed their potential as fluorescent stains.
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Affiliation(s)
- Fábio M F Santos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - João N Rosa
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Nuno R Candeias
- Department of Chemistry and Bioengineering, Tampere University of Technology, Korkeakoulunkatu 8, 33101, Tampere, Finland
| | - Cátia Parente Carvalho
- CIQSO - Center for Research in Sustainable Chemistry, and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain
| | - Ana I Matos
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Ana E Ventura
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Helena F Florindo
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Liana C Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Uwe Pischel
- CIQSO - Center for Research in Sustainable Chemistry, and Department of Chemistry, University of Huelva, Campus de El Carmen s/n, 21071, Huelva, Spain.
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
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49
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Suresh D, Ferreira B, Lopes PS, Gomes CSB, Krishnamoorthy P, Charas A, Vila-Viçosa D, Morgado J, Calhorda MJ, Maçanita AL, Gomes PT. Boron complexes of aromatic ring fused iminopyrrolyl ligands: synthesis, structure, and luminescence properties. Dalton Trans 2016; 45:15603-15620. [DOI: 10.1039/c6dt02771g] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New fluorescent aromatic ring-fused 2-iminopyrrolyl diphenyl boron complexes are emitters in the range blue to orange.
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