1
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Yang Z, Li X, Yang K, Yu N, Gao R, Ren Y. Synthesis and Unexpected Optical Properties of Ionic Phosphorus Heterocycles with P-Regulated Noncovalent Interactions. J Org Chem 2023. [PMID: 36786509 DOI: 10.1021/acs.joc.2c02424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Optoelectronic properties of organic chromophores (OCPs) are to a large extent dictated by the chemical structures. Herein, we synthesized a new series of ionic phosphorus(P)-heteropines via the methylation of the P(III) center. Our studies revealed that methylation is highly dependent on the P(III) environments (NPN, NPC, and CPC), in which adjacent nitrogen atoms greatly withdraw electron density of the P(III) center. The observation of noncovalent interactions between solvent molecules and the molecular backbones of the related P-heterocycle in the single crystal structure implied tunable molecular conformations. Different from the red-shifted absorption and emission spectra of ionic P-OCPs induced by either decreased lowest unoccupied molecular orbital (LUMO) or intramolecular charge transfer (ICT) state in previous studies, current ionic P-heterocycles exhibit blue-shifted absorption and emission spectra compared to the nonionic counterparts. Our experimental and theoretical studies suggest that the unexpected photophysical characters are probably due to the counter-anion induced structure twisting via intermolecular noncovalent interactions between NH-indole and O(OTf), and/or strong intermolecular O···F bonding between O(MI) and F(OTf). Our studies also revealed that the P-environments (NPN, NPC, and CPC) conjunctly impact the photophysical properties of the ionic P-heteropines. Overall, the fact that the P-environment-regulated noncovalent interactions induce the rich structure dynamics and photophysics offers us with a new and effective strategy to fine-tune the optical properties of OCPs.
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Affiliation(s)
- Zi Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xinyu Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Kai Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Na Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Rong Gao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yi Ren
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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2
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Pandey MK, Mondal D, Kote BS, Balakrishna MS. Synthesis and Photophysical Properties of Heavier Pnictogen Complexes. Chempluschem 2023; 88:e202200460. [PMID: 36756696 DOI: 10.1002/cplu.202200460] [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: 12/27/2022] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023]
Abstract
Recent success in the synthesis of π-conjugated heavier pnictogen (As, Sb, and Bi) compounds and their transition metal complexes has led to the current surge in interest that led to significant development in the field of photophysical and optoelectronic properties of heavier pnictogens and their transition metal complexes. The presence of heavier pnictogens (As, Sb and Bi) in the molecular skeleton promotes inter-system crossing (ISC) and reverse inter-system crossing (RISC), because of the heavy atom effect, via altering the intermolecular interactions and orbital energy levels. As a result, π-conjugated heavier pnictogen compounds such as arsines, dibenzoarsepins, arsinoquinoline, heterofluorene, benzo[b]heterole (heterole=arsole, bismole, and stibole) show unique optoelectronic properties such as narrow bandgap, low-energy absorption, and long-wavelength emission than lighter pnictogen-based compounds. This review focuses on recent advances in the synthesis and photophysical properties of heavier pnictogen compounds. The synthesis and photophysical properties of heavier pnictogens are discussed and elaborated.
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Affiliation(s)
- Madhusudan K Pandey
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Dipanjan Mondal
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Basvaraj S Kote
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Maravanji S Balakrishna
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
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3
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Fujii T, Kusukawa T, Imoto H, Naka K. Pnictogen-Bridged Diphenyl Sulfones as Photoinduced Pnictogen Bond Forming Emission Motifs. Chemistry 2023; 29:e202202572. [PMID: 36125391 DOI: 10.1002/chem.202202572] [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: 08/17/2022] [Indexed: 01/04/2023]
Abstract
In this study, pnictogen (Pn)-bridged diphenyl sulfones were synthesized as motifs for photoinduced dynamic rearrangement. The newly synthesized sulfones exhibited dual fluorescence at 298 K. Density functional theory calculations revealed that the longer-wavelength fluorescence was derived from the geometries after structural relaxation through photo-driven pnictogen bond formation between the O atom lone pair of the sulfonyl moiety and the antibonding orbital of the Pn-C bond. This is the first report on emission dynamics driven by pnictogen bond formation upon photoexcitation.
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Affiliation(s)
- Toshiki Fujii
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Takahiro Kusukawa
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.,Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
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4
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Yang Z, Li X, Yang K, Zhang Z, Wang Y, Yu N, Baumgartner T, Ren Y. Tailored Solvatochromic NIR Phosphorus-Chromophores via Selective P-N and P-C Chemistry in P-Heteropines. Org Lett 2022; 24:2045-2049. [PMID: 35244405 DOI: 10.1021/acs.orglett.2c00570] [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
Herein we report selective P-C and P-N chemistry as a new synthetic tool for constructing phosphorus (P)-chromophores with rich chemical structures. Our studies reveal that isomeric structures significantly influence the chemical structure and electronic communication of P-heteropines, which results in efficient tunability of the photophysical properties. In particular, isomeric P-chromophores with a protic N-H (indole) are also capable of participating in intramolecular H bonding, offering a new strategy to access a near-infrared chromophore.
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Affiliation(s)
- Zi Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xinyu Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Kai Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Zhikai Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yankun Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Na Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Thomas Baumgartner
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
| | - Yi Ren
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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5
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Huang S, Wen H, Tian Y, Wang P, Qin W, Yan H. Organocatalytic Enantioselective Construction of Chiral Azepine Skeleton Bearing Multiple‐Stereogenic Elements. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108040] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shengli Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P. R. China
| | - Haojun Wen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P. R. China
| | - Yuhong Tian
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P. R. China
| | - Pengfei Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center School of Pharmaceutical Sciences Chongqing University Chongqing 401331 P. R. China
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Huang S, Wen H, Tian Y, Wang P, Qin W, Yan H. Organocatalytic Enantioselective Construction of Chiral Azepine Skeleton Bearing Multiple-Stereogenic Elements. Angew Chem Int Ed Engl 2021; 60:21486-21493. [PMID: 34235834 DOI: 10.1002/anie.202108040] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Indexed: 12/19/2022]
Abstract
Enantioselective construction of molecules bearing multiple stereogenic elements is increasingly related to the synthesis of enantiopure natural products, pharmaceuticals, and functional materials. However, atom-economical and enantioselective approaches to install multiple stereogenic elements in a small molecular template by limited chemical transformation remain challenging. We describe an organocatalytic enantioselective method for the preparation of polychiral molecules bearing four types of stereogenic elements in fused azepines via vinylidene ortho-quinone methide (VQM)-mediated intramolecular electrophilic aromatic substitution. This method was proved robust with a wide range of substrate scope (46-92 % yield), with excellent diastereoselectivity (>20:1 dr) and enantioselectivity achieved (up to 97 % ee). Optical properties and Ru3+ -induced fluorescence responses of these compounds suggest their potential applications in optoelectronic materials and heavy metal ion detection.
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Affiliation(s)
- Shengli Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Haojun Wen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yuhong Tian
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Pengfei Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
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7
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Chen Y, Chang K, Meng F, Tseng S, Chou P. Broadening the Horizon of the Bell–Evans–Polanyi Principle towards Optically Triggered Structure Planarization. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yi Chen
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
| | - Kai‐Hsin Chang
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
| | - Fan‐Yi Meng
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
| | - Sheng‐Ming Tseng
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
| | - Pi‐Tai Chou
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
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8
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Chen Y, Chang K, Meng F, Tseng S, Chou P. Broadening the Horizon of the Bell–Evans–Polanyi Principle towards Optically Triggered Structure Planarization. Angew Chem Int Ed Engl 2021; 60:7205-7212. [DOI: 10.1002/anie.202015274] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Yi Chen
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
| | - Kai‐Hsin Chang
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
| | - Fan‐Yi Meng
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
| | - Sheng‐Ming Tseng
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
| | - Pi‐Tai Chou
- Department of Chemistry National (Taiwan) University Taipei 10617 Taiwan, R.O.C
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9
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Kimura R, Kuramochi H, Liu P, Yamakado T, Osuka A, Tahara T, Saito S. Flapping Peryleneimide as a Fluorogenic Dye with High Photostability and Strong Visible-Light Absorption. Angew Chem Int Ed Engl 2020; 59:16430-16435. [PMID: 32529765 DOI: 10.1002/anie.202006198] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Indexed: 12/15/2022]
Abstract
Flapping fluorophores (FLAP) with a flexible 8π ring are rapidly gaining attention as a versatile photofunctional system. Here we report a highly photostable "flapping peryleneimide" with an unprecedented fluorogenic mechanism based on a bent-to-planar conformational change in the S1 excited state. The S1 planarization induces an electronic configurational switch, almost quenching the inherent fluorescence (FL) of the peryleneimide moieties. However, the FL quantum yield is remarkably improved with a prolonged lifetime upon a slight environmental change. This fluorogenic function is realized by sensitive π-conjugation design, as a more π-expanded analogue does not show the planarization dynamics. With strong visible-light absorption, the FL lifetime response synchronized with the flexible flapping motion is useful for the latest optical techniques such as FL lifetime imaging microscopy (FLIM).
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Affiliation(s)
- Ryo Kimura
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hikaru Kuramochi
- Molecular Spectroscopy Laboratory, RIKEN, 2-1 Hirosawa, Wako, 351-0198, Japan.,Ultrafast Spectroscopy Research Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, 351-0198, Japan.,PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama, Japan
| | - Pengpeng Liu
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Takuya Yamakado
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Tahei Tahara
- Molecular Spectroscopy Laboratory, RIKEN, 2-1 Hirosawa, Wako, 351-0198, Japan.,Ultrafast Spectroscopy Research Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, 351-0198, Japan
| | - Shohei Saito
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan.,PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama, Japan
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10
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Kimura R, Kuramochi H, Liu P, Yamakado T, Osuka A, Tahara T, Saito S. Flapping Peryleneimide as a Fluorogenic Dye with High Photostability and Strong Visible‐Light Absorption. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ryo Kimura
- Department of Chemistry Graduate School of Science Kyoto University Kitashirakawa Oiwake-cho, Sakyo-ku Kyoto 606-8502 Japan
| | - Hikaru Kuramochi
- Molecular Spectroscopy Laboratory RIKEN 2-1 Hirosawa Wako 351-0198 Japan
- Ultrafast Spectroscopy Research Team RIKEN Center for Advanced Photonics 2-1 Hirosawa Wako 351-0198 Japan
- PRESTO, Japan Science and Technology Agency (JST) Kawaguchi Saitama Japan
| | - Pengpeng Liu
- Department of Chemistry Graduate School of Science Kyoto University Kitashirakawa Oiwake-cho, Sakyo-ku Kyoto 606-8502 Japan
| | - Takuya Yamakado
- Department of Chemistry Graduate School of Science Kyoto University Kitashirakawa Oiwake-cho, Sakyo-ku Kyoto 606-8502 Japan
| | - Atsuhiro Osuka
- Department of Chemistry Graduate School of Science Kyoto University Kitashirakawa Oiwake-cho, Sakyo-ku Kyoto 606-8502 Japan
| | - Tahei Tahara
- Molecular Spectroscopy Laboratory RIKEN 2-1 Hirosawa Wako 351-0198 Japan
- Ultrafast Spectroscopy Research Team RIKEN Center for Advanced Photonics 2-1 Hirosawa Wako 351-0198 Japan
| | - Shohei Saito
- Department of Chemistry Graduate School of Science Kyoto University Kitashirakawa Oiwake-cho, Sakyo-ku Kyoto 606-8502 Japan
- PRESTO, Japan Science and Technology Agency (JST) Kawaguchi Saitama Japan
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11
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Sun G, Wei Y, Zhang Z, Lin J, Liu Z, Chen W, Su J, Chou P, Tian H. Diversified Excited‐State Relaxation Pathways of Donor–Linker–Acceptor Dyads Controlled by a Bent‐to‐Planar Motion of the Donor. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guangchen Sun
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Yu‐Chen Wei
- Department of Chemistry National Taiwan University Taipei 10617 Taiwan R.O.C
| | - Zhiyun Zhang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Jia‐An Lin
- Department of Chemistry National Taiwan University Taipei 10617 Taiwan R.O.C
| | - Zong‐Ying Liu
- Department of Chemistry National Taiwan University Taipei 10617 Taiwan R.O.C
| | - Wei Chen
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Jianhua Su
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Pi‐Tai Chou
- Department of Chemistry National Taiwan University Taipei 10617 Taiwan R.O.C
| | - He Tian
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
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12
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Sun G, Wei Y, Zhang Z, Lin J, Liu Z, Chen W, Su J, Chou P, Tian H. Diversified Excited‐State Relaxation Pathways of Donor–Linker–Acceptor Dyads Controlled by a Bent‐to‐Planar Motion of the Donor. Angew Chem Int Ed Engl 2020; 59:18611-18618. [DOI: 10.1002/anie.202005466] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/06/2020] [Indexed: 01/21/2023]
Affiliation(s)
- Guangchen Sun
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Yu‐Chen Wei
- Department of Chemistry National Taiwan University Taipei 10617 Taiwan R.O.C
| | - Zhiyun Zhang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Jia‐An Lin
- Department of Chemistry National Taiwan University Taipei 10617 Taiwan R.O.C
| | - Zong‐Ying Liu
- Department of Chemistry National Taiwan University Taipei 10617 Taiwan R.O.C
| | - Wei Chen
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Jianhua Su
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
| | - Pi‐Tai Chou
- Department of Chemistry National Taiwan University Taipei 10617 Taiwan R.O.C
| | - He Tian
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Joint International Research Laboratory for Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science & Technology 130 Meilong Road Shanghai 200237 P. R. China
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13
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Karadakov PB, Saito S. Can Anti-Aufbau DFT Calculations Estimate Singlet Excited State Aromaticity? Correspondence on "Dibenzoarsepins: Planarization of 8π-Electron System in the Lowest Singlet Excited State". Angew Chem Int Ed Engl 2020; 59:9228-9230. [PMID: 32383184 DOI: 10.1002/anie.202001934] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Indexed: 11/07/2022]
Abstract
The simple anti-aufbau DFT approach for estimating singlet excited state aromaticity suggested in a recent Communication published in this journal is shown to produce incorrect results because it targets a linear combination of the singlet and triplet configurations involving the HOMO and LUMO rather than the first singlet excited state. If the S1 state of a molecule is dominated by the HOMO→LUMO excitation, a comparably simple but theoretically consistent and qualitatively correct approximation to the S1 wavefunction can be achieved by performing a small "two electrons in two orbitals" CASSCF(2,2) calculation which can be followed by the evaluation of magnetic aromaticity criteria such as NICS.
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Affiliation(s)
- Peter B Karadakov
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Shohei Saito
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
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14
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Karadakov PB, Saito S. Can Anti‐Aufbau DFT Calculations Estimate Singlet Excited State Aromaticity? Correspondence on “Dibenzoarsepins: Planarization of 8π‐Electron System in the Lowest Singlet Excited State”. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001934] [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)
| | - Shohei Saito
- Department of ChemistryGraduate School of ScienceKyoto University Kyoto 606-8502 Japan
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15
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Padberg K, Ascherl JDR, Hampel F, Kivala M. Isomeric Dithienophosphepines: The Impact of Ring Fusion on Electronic and Structural Properties. Chemistry 2020; 26:3474-3478. [PMID: 31797440 PMCID: PMC7154744 DOI: 10.1002/chem.201905429] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Indexed: 01/01/2023]
Abstract
The synthesis and extensive experimental (X-ray crystallography, UV/Vis spectroscopy, cyclic voltammetry) and theoretical (DFT calculations) characterization of two isomeric dithieno[b,f]phosphepines (DTPs) are presented herein. The relative orientation of the phosphepine and the thiophene moieties has a decisive impact on the electronic and structural properties of these compounds. Moreover, the thiophene units allow for a facile subsequent functionalization through direct Pd-catalyzed C-H coupling, which renders DTPs highly promising building blocks for organophosphorus functional materials.
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Affiliation(s)
- Kevin Padberg
- Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nürnberg, Nikolaus-Fiebiger-Strasse 10, 91058, Erlangen, Germany
| | - Johannes D R Ascherl
- Institute of Organic Chemistry & Centre for Advanced Materials, Ruprecht-Karls-University Heidelberg, Im Neuenheimer Feld 270 & 225, 69120, Heidelberg, Germany
| | - Frank Hampel
- Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nürnberg, Nikolaus-Fiebiger-Strasse 10, 91058, Erlangen, Germany
| | - Milan Kivala
- Institute of Organic Chemistry & Centre for Advanced Materials, Ruprecht-Karls-University Heidelberg, Im Neuenheimer Feld 270 & 225, 69120, Heidelberg, Germany
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