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Rashamuse TJ, Coyanis EM, Erasmus R, Magwa NP. Novel Fluorescent Tetrahedral Zinc (II) Complexes Derived from 4-Phenyl-1-octyl-1 H-imidazole Fused with Aryl-9 H-Carbazole and Triarylamine Donor Units: Synthesis, Crystal Structures, and Photophysical Properties. Int J Mol Sci 2023; 24:12260. [PMID: 37569639 PMCID: PMC10418610 DOI: 10.3390/ijms241512260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/27/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
We present here the design, synthesis, and photophysical properties of two novel fluorescent zinc (II) complexes, ZnCl2(ImL1)2 and ZnCl2(ImL2)2, containing 4-(1-octyl-1H-imidazol-4-yl)-N,N-diphenyl-[1,1-biphenyl]-4-yl)-4-amine ImL1 and 9-(4-(1-octyl-1H-imidazol-4-yl)-[1,1-biphenyl]-4-yl)-9H-carbazole ImL2 ligands. The newly synthesized free ligands and their zinc (II) complexes were characterized using several spectroscopic techniques; their structures were identified by single-crystal X-ray diffraction; and their photophysical properties have been studied in the context of their chemical structure. The ZnCl2(ImL1)2 and ZnCl2(ImL2)2 complexes showed good thermal stability at 341 °C and 365 °C, respectively. Photophysical properties, including UV-Vis absorption spectra in ethanol solution and photoluminescence (PL) in both solid state and ethanol solution, were determined. UV-Vis adsorption data indicated that both free ligands had similar UV-Vis absorption properties, while their Zn (II) complexes had distinctive absorption characteristics. The fluorescence spectra show that both ligands and their corresponding Zn (II) complexes emit violet to cyan luminescence in the solid state at room temperature, while in ethanol solution at the same temperature, they exhibit efficient photoluminescence properties in the UV-A emission spectral region. Because of these photophysical properties, the synthesized ligands and their cognate Zn (II) complexes can be used as scaffolds for the potential development of optoelectronic materials.
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Affiliation(s)
- Thompho Jason Rashamuse
- Nanotechnology Innovation Centre, Health Platform, Advanced Materials Division, Mintek, Private Bag X3015, Randburg 2125, South Africa;
| | - Elena Mabel Coyanis
- Nanotechnology Innovation Centre, Health Platform, Advanced Materials Division, Mintek, Private Bag X3015, Randburg 2125, South Africa;
| | - Rudolph Erasmus
- Materials for Energy Research Group, Material Physics Research Institute, School of Physics, University of the Witwatersrand, Private Bag 3, Wits, Johannesburg 2050, South Africa;
| | - Nomampondo Penelope Magwa
- Department of Chemistry, University of South Africa, Private Bag X6, Florida, Roodepoort 1710, South Africa;
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2
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Rashamuse TJ, Mohlala RL, Coyanis EM, Magwa NP. A Review: Blue Fluorescent Zinc (II) Complexes for OLEDs-A Last Five-Year Recap. Molecules 2023; 28:5272. [PMID: 37446930 DOI: 10.3390/molecules28135272] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
Blue emissions in organic light-emitting diodes (OLEDs) are essential for their application in solid-state lighting and full-colour flat panel displays. On the other hand, high-power blue emitters are still uncommon, especially those that can achieve the Commission Internationale de l'Eclairage (CIE, X, Y) coordinates of (0.14, 0.08) in the National Television System Committee (NTSC) blue standard and have high external quantum efficiencies (EQE) of more than 5% because their molecular design presents an enormous challenge. Therefore, creating effective, stable, pure, and deep blue fluorescent materials is vital. Here, it is addressed how useful blue fluorescent Zn (II) complexes are for making organic light-emitting diodes (OLEDs). Utilizing Zn (II) complexes is appealing because of their favourable luminous characteristics, acceptance and mobility, and affordability. This mini-review article aims to provide an overview of Zn (II) complexes that emit blue fluorescent light and have been reported since 2018, while highlighting the unique qualities that make them appropriate OLED materials.
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Affiliation(s)
- Thompho Jason Rashamuse
- Nanotechnology Innovation Centre, Health Platform, Advanced Materials Division, Mintek, Private Bag X3015, Randburg 2125, South Africa
| | - Reagan Lehlogonolo Mohlala
- Nanotechnology Innovation Centre, Health Platform, Advanced Materials Division, Mintek, Private Bag X3015, Randburg 2125, South Africa
| | - Elena Mabel Coyanis
- Nanotechnology Innovation Centre, Health Platform, Advanced Materials Division, Mintek, Private Bag X3015, Randburg 2125, South Africa
| | - Nomampondo Penelope Magwa
- Department of Chemistry, University of South Africa, Private Bag X6, Florida, Roodepoort 1710, South Africa
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3
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Ullmann S, Börner M, Kahnt A, Abel B, Kersting B. Green‐Emissive Zn
2+
Complex Supported by a Macrocyclic Schiff‐Base/Calix[4]arene‐Ligand: Crystallographic and Spectroscopic Characterization. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Steve Ullmann
- Institut für Anorganische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Germany
- Institut für Nichtklassische Chemie e.V. Permoserstraße. 15 04318 Leipzig
| | - Martin Börner
- Institut für Anorganische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Germany
- Leibniz Institute of Surface Engineering (IOM) Department of Functional Surfaces Permoserstr. 15 04318 Leipzig Germany
| | - Axel Kahnt
- Leibniz Institute of Surface Engineering (IOM) Department of Functional Surfaces Permoserstr. 15 04318 Leipzig Germany
| | - Bernd Abel
- Leibniz Institute of Surface Engineering (IOM) Department of Functional Surfaces Permoserstr. 15 04318 Leipzig Germany
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie Universität Leipzig Linnéstraße 2 04103 Leipzig Germany
| | - Berthold Kersting
- Institut für Anorganische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Germany
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4
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Synthesis, Photoluminescence and Electrical Study of Pyrazolone-Based Azomethine Ligand Zn(II) Complexes. MATERIALS 2020; 13:ma13245698. [PMID: 33327469 PMCID: PMC7764922 DOI: 10.3390/ma13245698] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/30/2020] [Accepted: 12/04/2020] [Indexed: 11/22/2022]
Abstract
New luminescent zinc complexes were obtained by reaction of pyrazolone-based azomethine ligands with Zn(CH3COO)2·2H2O. Complexes fully characterized by elemental analysis, FTIR, ES–MS, NMR, and single crystal X-ray analysis. Title complexes in the solid state demonstrate tunable luminescence from blue to orange by varying of substituents on the aromatic ring. Quantum yields are in the 0.03 to 0.49 range. TGA data shows that obtained complexes demonstrate high thermal stability and can be used as electroluminescent materials. The electrical properties of the complexes under study were considered in the ITO-Zncomplex-Al “sandwich” structure.
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5
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Bani Ali E, Kazemi M, Ali Ghasemzadeh M. A Novel Preparation of Blankophor R Nanoparticles by Reverse Microemulsion Method. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2018.1563553] [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]
Affiliation(s)
- Elahe Bani Ali
- Department of Chemistry, Qom Branch Islamic Azad University, Qom, I. R. Iran
| | - Masoud Kazemi
- Department of Chemistry, Qom Branch Islamic Azad University, Qom, I. R. Iran
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6
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Consiglio G, Oliveri IP, Failla S, Di Bella S. On the Aggregation and Sensing Properties of Zinc(II) Schiff-Base Complexes of Salen-Type Ligands. Molecules 2019; 24:E2514. [PMID: 31324053 PMCID: PMC6651702 DOI: 10.3390/molecules24132514] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 12/18/2022] Open
Abstract
The zinc(II) ion forms stable complexes with a wide variety of ligands, but those related to Schiff-bases are among the most largely investigated. This review deals with the peculiar aggregation characteristics of Zn(II) Schiff-base complexes from tetradentate N2O2 salen-type ligands, L, derivatives from salicylaldehydes and 1,2-diamines, and is mostly focused on their spectroscopic properties in solution. Thanks to their Lewis acidic character, ZnL complexes show interesting structural, nanostructural, and aggregation/deaggregation properties in relation to the absence/presence of a Lewis base. Deaggregation of these complexes is accompanied by relevant changes of their spectroscopic properties that can appropriately be exploited for sensing Lewis bases. Thus, ZnL complexes have been investigated as chromogenic and fluorogenic chemosensors of charged and neutral Lewis bases, including cell imaging, and have shown to be selective and sensitive to the Lewis basicity of the involved species. From these studies emerges that these popular, Lewis acidic bis(salicylaldiminato)Zn(II) Schiff-base complexes represent classical coordination compounds for modern applications.
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Affiliation(s)
- Giuseppe Consiglio
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Ivan Pietro Oliveri
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Salvatore Failla
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
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7
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Ardizzoia GA, Colombo G, Therrien B, Brenna S. Tuning the Fluorescence Emission and HOMO-LUMO Band Gap in Homoleptic Zinc(II) Complexes with N
,O
-Bidentate (Imidazo[1,5-a
]pyrid-3-yl)phenols. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900067] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- G. Attilio Ardizzoia
- Department of Science and High Technology; University of Insubria and CIRCC; Via Valleggio 9 - 22100 Como Italy
| | - Gioele Colombo
- Department of Science and High Technology; University of Insubria and CIRCC; Via Valleggio 9 - 22100 Como Italy
| | - Bruno Therrien
- Institute of Chemistry; University of Neuchâtel; Avenue de Bellevaux 51, CH -2000, Neuchâtel Switzerland
| | - Stefano Brenna
- Department of Science and High Technology; University of Insubria and CIRCC; Via Valleggio 9 - 22100 Como Italy
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8
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Synthesis and photophysical properties of Zn(II) Schiff base complexes possessing strong solvent-dependent solid-state fluorescence. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.08.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Affiliation(s)
- Andrea Pucci
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Via Moruzzi 13 56124 Pisa Italy
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Song X, Yu H, Yan X, Zhang Y, Miao Y, Ye K, Wang Y. A luminescent benzothiadiazole-bridging bis(salicylaldiminato)zinc(ii) complex with mechanochromic and organogelation properties. Dalton Trans 2018; 47:6146-6155. [PMID: 29667666 DOI: 10.1039/c8dt00665b] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Herein, a new bis(salicylaldiminato)Zn(ii) Schiff base complex, BTZn, derived from benzo[c][1,2,5]thiadiazole-5,6-diamine was designed and synthesized. It exhibited unique mechanical force-induced luminescence change characteristic. Upon mechanical grinding, the as-prepared BTZn solid crystalized from an ethanol/dichloromethane solution displays a high-contrast emission-colour variation from yellow (emission maximum λem = 545 nm) to red (λem = 645 nm), and this emission variation can be erased through solvent vapour treatment. The reversible emission colour alteration between yellow and red can be repeatedly performed. Thermal annealing of the as-prepared BTZn solid resulted in a more ordered orange phase with an emission maximum of 575 nm. The multi-stimuli-responsive luminescence mechanism has been investigated via SEM, powder X-ray diffraction (XRD), and thermal analyses. It is demonstrated that mechanical force can induce morphology transformation from the crystalline to the amorphous phase, which is accompanied by a change in the BTZn molecular packing modes. The BTZn-based solids have molecular packing-dependent emission characteristics. The XRD experimental results reveal that for the yellow emissive as-prepared BTZn solid, a columnar square molecular arrangement is adopted. On the other hand, the BTZn complex exhibits the ability to organize into organic luminescent gels constructed by one-dimensional BTZn molecular nanofibrils. The BTZn xerogel also displays mechanochromic properties. Accordingly, BTZn-based solids may be potential candidates for the development of new stimuli-responsive materials.
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Affiliation(s)
- Xiaoxian Song
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
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11
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Ullmann S, Schnorr R, Laube C, Abel B, Kersting B. Photoluminescence properties of tetrahedral zinc(ii) complexes supported by calix[4]arene-based salicylaldiminato ligands. Dalton Trans 2018; 47:5801-5811. [PMID: 29644369 DOI: 10.1039/c8dt00757h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and photophysical properties of four new hybrid salicylaldiminato-calix[4]arene ligands and their corresponding zinc(ii) complexes are described. The Schiff bases were obtained from condensation reactions between cone-25,27-di(aminoethoxy)-26,28-dihydroxy-calix[4]arene and salicylaldehyde (H2L1) or o-vanillin (H2L2) and 1,3-alt-25,27-di(aminoethoxy)-26,28-di(n-propyloxy)-calix[4]arene and 3,5-di-tert-butyl-salicylaldehyde (H2L3) or o-vanillin (H2L4). Complexation reactions were investigated by ESI-MS, IR, NMR, UV-vis absorption and steady-state and time resolved fluorescence spectroscopy, and X-ray crystallography. All ligands support 1 : 1 complexes (ZnL1-ZnL4), with equilibrium constants derived from absorption spectrophotometry in the range log K11 = 5.5-8.2 (MeCN or MeOH/CH2Cl2, I = 0.01 M). The zinc complexes show blue fluorescence, both in solution as well as in the solid state, with λem, Φf, and τ ranging from 472-504 nm, 0.11-0.60, and 2-9 ns, respectively. The nature of the substituents on the salicylaldiminato fragments was found to be the main parameter that influences the photophysical properties of the zinc complexes. Insights into the electronic nature of the UV-vis transitions were obtained with time dependent density functional theory (TD-DFT) calculations.
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Affiliation(s)
- Steve Ullmann
- Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany.
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12
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Supramolecular Aggregation of a New Substituted Bis(salicylaldiminato)zinc(II) Schiff-Base Complex Derived from trans-1,2-Diaminocyclohexane. INORGANICS 2018. [DOI: 10.3390/inorganics6010008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
In this contribution is reported the synthesis, characterization, and aggregation properties in solution of a novel Zn(II) complex, (R)-2, derived from the enantiopure chiral trans-1,2-diaminocyclohexane and a substituted salicylaldehyde. Detailed 1H NMR, DOSY NMR, optical absorption, and circular dichroism spectroscopic studies and chemical evidence allowed to investigate the nature of aggregate species in solution. The high solubility of (R)-2 in solution of the non-coordinating chloroform solvent leads to formation of various aggregates, some of them consisting of large oligomers estimated to contain up to 27 monomeric units. The chiral trans-stereochemistry of the bridging diamine favors a different aggregation mode in these complexes, both in the oligomers and dimers, involving a tetrahedral coordination geometry around the metal center. Overall data suggest the formation of helical oligomers, (ZnL)n, in freshly prepared chloroform solutions which, by standing or heating, evolve towards a more thermodynamically stable, dinuclear double-helicate Zn2L2 dimer.
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13
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Mori R, Iasilli G, Lessi M, Muñoz-García AB, Pavone M, Bellina F, Pucci A. Luminescent solar concentrators based on PMMA films obtained from a red-emitting ATRP initiator. Polym Chem 2018. [DOI: 10.1039/c7py01933e] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PMMA_TPE_RED polymers containing 0.98–3.05 wt% of a red-emitting AIEgen were prepared and proposed as high performance luminescent solar concentrators.
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Affiliation(s)
- Riccardo Mori
- Dipartmento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
| | - Giuseppe Iasilli
- Dipartmento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
| | - Marco Lessi
- Dipartmento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
| | - Ana Belén Muñoz-García
- Dipartimento di Fisica “Ettore Pancini”, Università di Napoli Federico II
- 80126 Napoli
- Italy
| | - Michele Pavone
- Dipartimento di Fisica “Ettore Pancini”, Università di Napoli Federico II
- 80126 Napoli
- Italy
| | - Fabio Bellina
- Dipartmento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
| | - Andrea Pucci
- Dipartmento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
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14
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Oliveri IP, Forte G, Consiglio G, Failla S, Di Bella S. Aggregates of Defined Stereochemical Scaffolds: A Study in Solution of a Zinc(II) Schiff Base Complex Derived from the Enantiopure trans-1,2-Cyclopentanediamine. Inorg Chem 2017; 56:14206-14213. [DOI: 10.1021/acs.inorgchem.7b02341] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ivan Pietro Oliveri
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
| | - Giuseppe Forte
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
| | - Giuseppe Consiglio
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
| | - Salvatore Failla
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche and ‡Dipartimento di Scienze del Farmaco, Università di Catania, I-95125 Catania, Italy
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15
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Sottile M, Tomei G, Borsacchi S, Martini F, Geppi M, Ruggeri G, Pucci A. Epoxy resin doped with Coumarin 6: Example of accessible luminescent collectors. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.02.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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16
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Gianfaldoni F, De Nisi F, Iasilli G, Panniello A, Fanizza E, Striccoli M, Ryuse D, Shimizu M, Biver T, Pucci A. A push–pull silafluorene fluorophore for highly efficient luminescent solar concentrators. RSC Adv 2017. [DOI: 10.1039/c7ra08022k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
We report on the preparation of luminescent collectors based on poly(methyl methacrylate) (PMMA) thin films doped with a red-emitting 2-amino-7-acceptor-9-silafluorene, where the amino group is –N(CH3)2and the acceptor is –CHC(CN)2.
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Affiliation(s)
- Federico Gianfaldoni
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56124 Pisa
- Italy
| | - Francesca De Nisi
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56124 Pisa
- Italy
| | - Giuseppe Iasilli
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56124 Pisa
- Italy
| | | | - Elisabetta Fanizza
- CNR-IPCF Bari Unit
- c/o Department of Chemistry
- 70126 Bari
- Italy
- Department of Chemistry
| | | | - Daiki Ryuse
- Faculty of Molecular Chemistry and Engineering
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Masaki Shimizu
- Faculty of Molecular Chemistry and Engineering
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Tarita Biver
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56124 Pisa
- Italy
| | - Andrea Pucci
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56124 Pisa
- Italy
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17
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Forte G, Oliveri IP, Consiglio G, Failla S, Di Bella S. On the Lewis acidic character of bis(salicylaldiminato)zinc(ii) Schiff-base complexes: a computational and experimental investigation on a series of compounds varying the bridging diimine. Dalton Trans 2017; 46:4571-4581. [DOI: 10.1039/c7dt00574a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The electronic effects induced by the geometry of the 1,2-diimine bridge control the Lewis acidic character in a series of ZnII Shiff-base complexes.
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Affiliation(s)
- Giuseppe Forte
- Dipartimento di Scienze del Farmaco
- Università di Catania
- I-95125 Catania
- Italy
| | | | - Giuseppe Consiglio
- Dipartimento di Scienze Chimiche
- Università di Catania
- I-95125 Catania
- Italy
| | - Salvatore Failla
- Dipartimento di Scienze Chimiche
- Università di Catania
- I-95125 Catania
- Italy
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche
- Università di Catania
- I-95125 Catania
- Italy
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18
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Consiglio G, Oliveri IP, Failla S, Di Bella S. Supramolecular Aggregates of Defined Stereochemical Scaffolds: Aggregation/Deaggregation in Schiff-Base Zinc(II) Complexes Derived from Enantiopure trans-1,2-Diaminocyclohexane. Inorg Chem 2016; 55:10320-10328. [DOI: 10.1021/acs.inorgchem.6b01580] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Giuseppe Consiglio
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Ivan Pietro Oliveri
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Salvatore Failla
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
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