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Roszyk M, Wałęsa-Chorab M. Electrochemical and Optical Properties of D-A-A-A-D Azomethine Triad and Its NIR-Active Polymer. Molecules 2024; 29:4470. [PMID: 39339464 PMCID: PMC11434257 DOI: 10.3390/molecules29184470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2024] [Revised: 09/09/2024] [Accepted: 09/13/2024] [Indexed: 09/30/2024] Open
Abstract
The azomethine TPA-(BTZ)3-TPA with a donor-acceptor-acceptor-acceptor-donor structure has been synthesized and characterized. Azomethine TPA-(BTZ)3-TPA exhibited luminescence properties and a positive solvatochromic effect. Electropolymerization on terminated triphenylamine groups was used to obtain a thin layer of the polyazomethine poly-[TPA-(BTZ)3-TPA]. Further investigation of oxidation/reduction properties of poly-[TPA-(BTZ)3-TPA] via cyclic voltammetry showed that the polymer undergoes two reversible oxidation/reduction processes due to the presence of tetraphenylbenzidine moieties. Electrochromic properties of the polyazomethine poly-[TPA-(BTZ)3-TPA] were investigated via spectroelectrochemistry. It was observed that the polymer in its neutral state is orange, and the color changes to green upon electro-oxidation. The stability of the polymer during multiple oxidation/reduction cycles, response times, and coloration efficiency were also investigated.
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Affiliation(s)
- Mateusz Roszyk
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Monika Wałęsa-Chorab
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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Soroceanu M, Constantin CP, Damaceanu MD. Polynaphthylimide–Azomethines Containing Triphenylamine or Carbazole Moieties with Tuned Optoelectronic Properties through Molecular Design. Molecules 2022; 27:molecules27185761. [PMID: 36144497 PMCID: PMC9504240 DOI: 10.3390/molecules27185761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/25/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Polyazomethines containing electron-donor triphenylamine (TPA) or carbazole (Cbz) and electron-acceptor naphthyl(di)imide were synthesized and investigated with regard to thermal, optical and electronic features, with a focus on their modulation by molecular design. The polycondesation of an imido-based diamine with a Cbz- or TPA-based dialdehyde led to donor-acceptor polymers with good thermostability, up to 318 °C. These displayed good solubility in organic solvents, which enabled easy polymer processability in thin films with different molecular assemblies. The molecular order improved the charge carrier’s mobility, with a direct impact on the bandgap energy. The optical properties studied by UV–Vis absorption and fluorescence experiments showed solvent-dependence, characteristic for donor-acceptor systems. The structural parameters exerted a strong influence on the light-emissive behavior, with the prevalence of intrinsic or intramolecular charge transfer fluorescence contingent on the donor-acceptor strength and polymer geometry. All polymers showed good electroactivity, supporting both electrons and holes transport. The exchange of Cbz with TPA proved to be an efficient tool with which to decrease the bandgap energy, while that of naphthyl(di)imide with bis(naphthylimide) was beneficial for fluorescence enhancement. This study may contribute to a deeper understanding of the physico-chemistry of electronic materials so as to make them more competitive in the newest energy-related or other optoelectronic devices.
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Pająk AK, Kotowicz S, Gnida P, Małecki JG, Ciemięga A, Łuczak A, Jung J, Schab-Balcerzak E. Synthesis and Characterization of New Conjugated Azomethines End-Capped with Amino-thiophene-3,4-dicarboxylic Acid Diethyl Ester. Int J Mol Sci 2022; 23:ijms23158160. [PMID: 35897736 PMCID: PMC9330727 DOI: 10.3390/ijms23158160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 02/04/2023] Open
Abstract
A new series of thiophene-based azomethines differing in the core structure was synthesized. The effect of the central core structure in azomethines on the thermal, optical and electrochemical properties was investigated. The obtained compounds exhibited the ability to form a stable amorphous phase with a high glass transition temperature above 100 °C. They were electrochemically active and undergo oxidation and reduction processes. The highest occupied (HOMO) and the lowest unoccupied molecular (LUMO) orbitals were in the range of −3.86–−3.60 eV and −5.46–−5.17 eV, respectively, resulting in a very low energy band gap below 1.7 eV. Optical investigations were performed in the solvents with various polarity and in the solid state as a thin film deposited on a glass substrate. The synthesized imines absorbed radiation from 350 to 600 nm, depending on its structure and showed weak emission with a photoluminescence quantum yield below 2.5%. The photophysical investigations were supported by theoretical calculations using the density functional theory. The synthesized imines doped with lithium bis-(trifluoromethanesulfonyl)imide were examined as hole transporting materials (HTM) in hybrid inorganic-organic perovskite solar cells. It was found that both a volume of lithium salt and core imine structure significantly impact device performance. The best power conversion efficiency (PCE), being about 35–63% higher compared to other devices, exhibited cells based on the imine containing a core tiphenylamine unit.
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Affiliation(s)
- Agnieszka Katarzyna Pająk
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland; (A.K.P.); (J.G.M.)
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland;
| | - Sonia Kotowicz
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland; (A.K.P.); (J.G.M.)
- Correspondence: (S.K.); (E.S.-B.)
| | - Paweł Gnida
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland;
| | - Jan Grzegorz Małecki
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland; (A.K.P.); (J.G.M.)
| | - Agnieszka Ciemięga
- Institute of Chemical Engineering, Polish Academy of Sciences, 5 Bałtycka Str., 44-100 Gliwice, Poland;
| | - Adam Łuczak
- Department of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, 116 Żeromskiego Str., 90-924 Lodz, Poland; (A.Ł.); (J.J.)
| | - Jarosław Jung
- Department of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, 116 Żeromskiego Str., 90-924 Lodz, Poland; (A.Ł.); (J.J.)
| | - Ewa Schab-Balcerzak
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland; (A.K.P.); (J.G.M.)
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland;
- Correspondence: (S.K.); (E.S.-B.)
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4
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Synthesis and Characterization of Vanillin-Based π-Conjugated Polyazomethines and Their Oligomer Model Compounds. Molecules 2022; 27:molecules27134138. [PMID: 35807392 PMCID: PMC9268122 DOI: 10.3390/molecules27134138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/30/2022] [Accepted: 06/23/2022] [Indexed: 12/10/2022] Open
Abstract
The synthesis of π-conjugated polymers via an environmentally friendly procedure is generally challenging. Herein, we describe the synthesis of divanillin-based polyazomethines, which are derived from a potentially bio-based monomer. The polymerization is performed in 5 min under microwave irradiation without any metallic catalyst, with water as the only by-product. The vanillin-based polyazomethines were characterized by SEC, TGA, and UV-Vis spectroscopy. Model compounds were designed and characterized by X-ray diffraction and UV-Vis spectroscopy. The structure/properties study of vanillin-based azomethines used as models allowed us to unequivocally confirm the E configuration and to highlight the cross-conjugated nature of divanillin-based polymers.
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Tremblay MH, Al Ahmad A, Skene WG. End-group functionalization of a conjugated azomethine with ureas for property tailoring. NEW J CHEM 2020. [DOI: 10.1039/c9nj04722k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A conjugated azomethine end-capped with phenyl-ureas was prepared by a convergent approach. Hydrogen bonding with the ureas was confirmed and the spectroscopic properties could be enhanced with the supramolecular bonds.
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Affiliation(s)
- Marie-Hélène Tremblay
- Laboratoire de Caractérisation Photophysique des Matériaux Conjugués
- Département de Chimie
- Pavillon JA Bombardier
- Université de Montréal
- Montréal
| | - Abdel Al Ahmad
- Laboratoire de Caractérisation Photophysique des Matériaux Conjugués
- Département de Chimie
- Pavillon JA Bombardier
- Université de Montréal
- Montréal
| | - W. G. Skene
- Laboratoire de Caractérisation Photophysique des Matériaux Conjugués
- Département de Chimie
- Pavillon JA Bombardier
- Université de Montréal
- Montréal
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7
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Gonciarz A, Pich R, Bogdanowicz KA, Jewloszewicz B, Przybył W, Dysz K, Dylong A, Kwak A, Kaim A, Iwan A, Rusin J, Januszko A. UV-Vis Absorption Properties of New Aromatic Imines and Their Compositions with Poly({4,8-bis[(2-Ethylhexyl)oxy]Benzo[1,2-b:4,5-b']Dithiophene-2,6-diyl}{3-Fluoro-2-[(2-Ethylhexyl)Carbonyl]Thieno[3,4-b]Thiophenediyl}). MATERIALS (BASEL, SWITZERLAND) 2019; 12:E4191. [PMID: 31847154 PMCID: PMC6947379 DOI: 10.3390/ma12244191] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/29/2019] [Accepted: 12/09/2019] [Indexed: 12/02/2022]
Abstract
In this paper, four new aromatic imines containing at least one thiazole-based heterocycle were analyzed in detail by UV-Vis spectroscopy, taking into consideration their chemical structures and interactions with PTB7, a known polymeric electron donor widely used in bulk heterojunction organic solar cells. It is demonstrated that the absorption spectra of the investigated active compositions can be modified not only by changing the chemical structure of imine, but also via formulations with PTB7. For all investigated imines and PTB7:imine compositions, calibration curves were obtained in order to find the optimum concentration in the composition with PTB7 for expansion and optimization of absorption spectra. All imines and PTB7:imine compositions were investigated in 1,2-dichlorobenzene by UV-Vis spectroscopy in various concentrations, monitoring the changes in the π-π* and n-π* transitions. With increasing imine concentrations, we did not observe changes in absorption maxima, while with increasing imine concentrations, a hypochromic effect was observed. Finally, we could conclude that all investigated compositions exhibited wide absorptions of up to 800 nm and isosbestic points in the range of 440-540 nm, confirming changes in the macromolecular organization of the tested compounds. The theoretical calculations of their vibration spectra (FTIR) and LUMO-HOMO levels by Density Functional Theory (DFT) methods are also provided. Finally, IR thermal images were measured for organic devices based on imines and the imine:PTB7 composite.
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Affiliation(s)
- Agnieszka Gonciarz
- General Tadeusz Kosciuszko Military University of Land Forces, Wroclaw; MULF Wroclaw, Faculty of Security and Safety Research, Czajkowskiego 109 Str., 51–147 Wroclaw, Poland; (A.G.); (R.P.); (J.R.)
| | - Robert Pich
- General Tadeusz Kosciuszko Military University of Land Forces, Wroclaw; MULF Wroclaw, Faculty of Security and Safety Research, Czajkowskiego 109 Str., 51–147 Wroclaw, Poland; (A.G.); (R.P.); (J.R.)
| | - Krzysztof Artur Bogdanowicz
- Military Institute of Engineer Technology, Obornicka 136 Str., 50–961 Wroclaw, Poland; (K.A.B.); (B.J.); (W.P.); (K.D.); (A.D.); (A.K.); (A.J.)
| | - Beata Jewloszewicz
- Military Institute of Engineer Technology, Obornicka 136 Str., 50–961 Wroclaw, Poland; (K.A.B.); (B.J.); (W.P.); (K.D.); (A.D.); (A.K.); (A.J.)
| | - Wojciech Przybył
- Military Institute of Engineer Technology, Obornicka 136 Str., 50–961 Wroclaw, Poland; (K.A.B.); (B.J.); (W.P.); (K.D.); (A.D.); (A.K.); (A.J.)
| | - Karolina Dysz
- Military Institute of Engineer Technology, Obornicka 136 Str., 50–961 Wroclaw, Poland; (K.A.B.); (B.J.); (W.P.); (K.D.); (A.D.); (A.K.); (A.J.)
| | - Agnieszka Dylong
- Military Institute of Engineer Technology, Obornicka 136 Str., 50–961 Wroclaw, Poland; (K.A.B.); (B.J.); (W.P.); (K.D.); (A.D.); (A.K.); (A.J.)
| | - Anna Kwak
- Military Institute of Engineer Technology, Obornicka 136 Str., 50–961 Wroclaw, Poland; (K.A.B.); (B.J.); (W.P.); (K.D.); (A.D.); (A.K.); (A.J.)
| | - Andrzej Kaim
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02–093 Warsaw, Poland;
| | - Agnieszka Iwan
- Military Institute of Engineer Technology, Obornicka 136 Str., 50–961 Wroclaw, Poland; (K.A.B.); (B.J.); (W.P.); (K.D.); (A.D.); (A.K.); (A.J.)
| | - Jaroslaw Rusin
- General Tadeusz Kosciuszko Military University of Land Forces, Wroclaw; MULF Wroclaw, Faculty of Security and Safety Research, Czajkowskiego 109 Str., 51–147 Wroclaw, Poland; (A.G.); (R.P.); (J.R.)
| | - Adam Januszko
- Military Institute of Engineer Technology, Obornicka 136 Str., 50–961 Wroclaw, Poland; (K.A.B.); (B.J.); (W.P.); (K.D.); (A.D.); (A.K.); (A.J.)
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Tundidor‐Camba A, Araya N, González‐Henríquez CM, Tagle LH, Hauyon RA, Sobarzo PA, Rodríguez‐González FE, Jessop IA, Recabarren‐Gajardo G, Terraza CA. Flexible oligomeric silicon‐containing poly(ether‐azomethine)s obtained from epoxide derivatives. Synthesis and characterization. J Appl Polym Sci 2019. [DOI: 10.1002/app.48055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Alain Tundidor‐Camba
- Research Laboratory for Organic Polymers (RLOP), Faculty of Chemistry and of PharmacyPontificia Universidad Católica de Chile P.O. Box. 306, Post 22 Santiago Chile
- UC Energy Research CenterPontificia Universidad Católica de Santiago Chile
| | - Nélida Araya
- Research Laboratory for Organic Polymers (RLOP), Faculty of Chemistry and of PharmacyPontificia Universidad Católica de Chile P.O. Box. 306, Post 22 Santiago Chile
| | - Carmen M. González‐Henríquez
- Laboratory of Nanotechnology and Advanced Materials (LNnMA), Chemistry DepartmentUniversidad Tecnológica Metropolitana P.O. Box 9845, Post 21 Santiago Chile
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación (PIDi)Universidad Tecnológica Metropolitana Ignacio Valdivieso 2409 Santiago Chile
| | - Luis H. Tagle
- Research Laboratory for Organic Polymers (RLOP), Faculty of Chemistry and of PharmacyPontificia Universidad Católica de Chile P.O. Box. 306, Post 22 Santiago Chile
| | - René A. Hauyon
- Research Laboratory for Organic Polymers (RLOP), Faculty of Chemistry and of PharmacyPontificia Universidad Católica de Chile P.O. Box. 306, Post 22 Santiago Chile
| | - Patricio A. Sobarzo
- Research Laboratory for Organic Polymers (RLOP), Faculty of Chemistry and of PharmacyPontificia Universidad Católica de Chile P.O. Box. 306, Post 22 Santiago Chile
| | - Fidel E. Rodríguez‐González
- Research Laboratory for Organic Polymers (RLOP), Faculty of Chemistry and of PharmacyPontificia Universidad Católica de Chile P.O. Box. 306, Post 22 Santiago Chile
| | - Ignacio A. Jessop
- Organic and Polymeric Materials Research Laboratory, Chemistry DepartmentUniversidad de Tarapacá P.O. Box 7‐D Arica Chile
| | - Gonzalo Recabarren‐Gajardo
- Department of Pharmacy, Faculty of Chemistry and of PharmacyPontificia Universidad Católica de Santiago Chile
- Centro Interdisciplinario de NeurocienciasPontificia Universidad Católica de Chile Marcoleta 391 Santiago 8330024 Chile
| | - Claudio A. Terraza
- Research Laboratory for Organic Polymers (RLOP), Faculty of Chemistry and of PharmacyPontificia Universidad Católica de Chile P.O. Box. 306, Post 22 Santiago Chile
- UC Energy Research CenterPontificia Universidad Católica de Santiago Chile
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9
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Gautier Y, Maris T, Skene WG. Crystal structure of diethyl 2-amino-5-{4-[bis-(4-methyl-phen-yl)amino]-benzamido}-thio-phene-3,4-di-carboxyl-ate. Acta Crystallogr E Crystallogr Commun 2019; 75:589-592. [PMID: 31110792 PMCID: PMC6505590 DOI: 10.1107/s2056989019003864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/20/2019] [Indexed: 11/10/2022]
Abstract
In the title compound, C31H31N3O5S, the regioselective substitution of the thio-phene is confirmed with the amine and the amide at the 2- and 5-positions, respectively. In the mol-ecule, the thio-phene ring is twisted by 12.82 (3)° with respect to the aromatic ring of the benzamido group. Intra-molecular N-H⋯O hydrogen bonds are present involving the N atoms of the primary amine and the amide groups, forming S(6) ring motifs. In the crystal, centrosymmetrically related mol-ecules are linked by pairs of N-H⋯O hydrogen bonds involving the amide carbonyl O atoms and the primary amine N atoms to form dimers of R 2 2(16) ring motif.
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Affiliation(s)
- Yohan Gautier
- Département de chimie, Université de Montréal, CP 6128, Centre-ville Montreal, QC, H3C 3J7, Canada
| | - Thierry Maris
- Département de chimie, Université de Montréal, CP 6128, Centre-ville Montreal, QC, H3C 3J7, Canada
| | - W. G. Skene
- Département de chimie, Université de Montréal, CP 6128, Centre-ville Montreal, QC, H3C 3J7, Canada
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Ermiş E, Durmuş K, Aygüzer ÖU, Berber H, Güllü M. A new 2,2′-oxydianiline derivative symmetrical azomethine compound containing thiophene units: Synthesis, spectroscopic characterization (UV–Vis, FTIR, 1 H and 13 C NMR) and DFT calculations. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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11
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Singh AK, Thakur S, Pani B, Ebenso EE, Quraishi MA, Pandey AK. 2-Hydroxy- N'-((Thiophene-2-yl)methylene)benzohydrazide: Ultrasound-Assisted Synthesis and Corrosion Inhibition Study. ACS OMEGA 2018; 3:4695-4705. [PMID: 31458691 PMCID: PMC6641359 DOI: 10.1021/acsomega.8b00003] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 03/15/2018] [Indexed: 05/26/2023]
Abstract
2-Hydroxy-N'-((thiophene-2-yl)methylene)benzohydrazide (HTMBH) was synthesized by conventional method as well as by ultrasonication (US). The ultrasound-assisted synthesis of HTMBH was found to have good yield and be more eco-friendly compared to the conventional method of synthesis. The synthesized compound HTMBH was characterized by Fourier transform infrared, 1H NMR, and CHN analyses. The corrosion inhibition behavior of HTMBH was investigated using gravimetric and electrochemical methods in 0.5 M H2SO4. The thermodynamic adsorption parameters revealed that HTMBH was adsorbed on the mild steel surface in both ways, physically and chemically, although physisorption is predominant. The study of activation parameters revealed that it is the increase in activation energy that is a prominent factor to lower the corrosion rate in acid medium. Atomic force microscopy analysis is also carried out to investigate the effect of HTMBH on the surface of mild steel surface in acid solution. The contact angle measurement showed decreased affinity of mild steel surface for acid solution containing HTMBH. The results obtained from all of these methods showed good consistency.
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Affiliation(s)
- Ashish Kumar Singh
- Department
of Applied Science, Bharati Vidyapeeth’s
College of Engineering, New Delhi 110063, India
| | - Sanjeeve Thakur
- Department
of Chemistry, NSIT, University of Delhi, New Delhi 110078, India
| | - Balaram Pani
- Department
of Chemistry, Bhaskaracharya College of Applied Science, University
of Delhi, New Delhi 110075, India
| | - Eno E. Ebenso
- Material
Science Innovation & Modelling (MaSIM) Research Focus Area, Faculty
of Natural and Agricultural Sciences, North-West
University, Private Bag X2046, Mmabatho 2735, South Africa
| | - Mumtaz Ahmad Quraishi
- Department
of Chemistry, Indian Institute of Technology
(BHU), Varanasi 221005, India
| | - Ajit Kumar Pandey
- Department
of Chemistry, NSIT, University of Delhi, New Delhi 110078, India
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12
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Singh AK, Thakur S, Pani B, Singh G. Green synthesis and corrosion inhibition study of 2-amino-N′-((thiophen-2-yl)methylene)benzohydrazide. NEW J CHEM 2018. [DOI: 10.1039/c7nj04162d] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Amino-N′-((thiophen-2-yl)methylene)benzohydrazide (ATMBH) was synthesized by a conventional method, as well as by microwave (MW) irradiation.
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Affiliation(s)
- A. K. Singh
- Department of Applied Science
- Bharati Vidyapeeth's College of Engineering
- New Delhi 110063
- India
| | - S. Thakur
- Department of Chemistry
- Netaji Subhash Institute of Technology
- University of Delhi
- India
| | - B. Pani
- Department of Chemistry
- Bhaskaracharya College of Applied Science
- University of Delhi
- India
| | - G. Singh
- Department of Chemistry
- University of Delhi
- India
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13
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Nedolya NA, Tarasova OA, Albanov AI, Trofimov BA. A One-Pot Assembly of Fully Substituted Alkyl 5-Aminothiophene-2-carboxylates from Allenes, Isothiocyanates, and Alkyl 2-Bromoacetates. J Org Chem 2017. [DOI: 10.1021/acs.joc.7b01217] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nina A. Nedolya
- A. E. Favorsky Irkutsk Institute
of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
| | - Ol’ga A. Tarasova
- A. E. Favorsky Irkutsk Institute
of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
| | - Alexander I. Albanov
- A. E. Favorsky Irkutsk Institute
of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
| | - Boris A. Trofimov
- A. E. Favorsky Irkutsk Institute
of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk 664033, Russian Federation
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Sęk D, Siwy M, Małecki JG, Kotowicz S, Golba S, Nowak EM, Sanetra J, Schab-Balcerzak E. Polycyclic aromatic hydrocarbons connected with Schiff base linkers: Experimental and theoretical photophysical characterization and electrochemical properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 175:168-176. [PMID: 28038374 DOI: 10.1016/j.saa.2016.12.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/14/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
A series of polyaromatic hydrocarbons with anthracene, phenanthrene and pyrene units connected with Schiff base junctions were synthesized via condensation of p-phenylenediamine and hydrazine with selected aldehydes. The effect of both hydrocarbon structures and presence of N-N- or phenyl- linked diimines on properties of the prepared azines and azomethines was analyzed. The obtained compounds were soluble in common organic solvents and melted in the range of 226-317°C. Their photophysical and electrochemical properties were investigated by UV-vis, photoluminescence spectroscopies and cyclic voltammetry (CV), respectively. Moreover, a density functional theory (DFT) was applied for calculation of their electronic and geometric structures as well as absorption and emission spectra. Additionally, their electron acceptor activity was preliminary tested in photovoltaic experiment.
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Affiliation(s)
- Danuta Sęk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland
| | - Mariola Siwy
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland
| | - Jan Grzegorz Małecki
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
| | - Sonia Kotowicz
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
| | - Sylwia Golba
- Institute of Materials Science, University of Silesia, 1 75 Pulku Piechoty Str., 41-500 Chorzow, Poland
| | - Elżbieta M Nowak
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, 24 Warszawska Str., 31-155 Krakow, Poland
| | - Jerzy Sanetra
- Institute of Physics, Cracow University of Technology, 1 Podchorazych Str., 30-035 Krakow, Poland
| | - Ewa Schab-Balcerzak
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland; Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland.
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15
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Tremblay MH, Gellé A, Skene WG. Ambipolar azomethines as potential cathodic color switching materials. NEW J CHEM 2017. [DOI: 10.1039/c6nj01732k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The electrochemical oxidation and reduction reversibility along with the electrochemically mediated color change of triad azomethines were contingent on the central aromatic.
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Affiliation(s)
- Marie-Hélène Tremblay
- Laboratoire de Caractérisation Photophysique des Matériaux Conjugués
- Département de Chimie
- Pavillon JA Bombardier
- Université de Montréal
- Montréal
| | - Alexandra Gellé
- Laboratoire de Caractérisation Photophysique des Matériaux Conjugués
- Département de Chimie
- Pavillon JA Bombardier
- Université de Montréal
- Montréal
| | - W. G. Skene
- Laboratoire de Caractérisation Photophysique des Matériaux Conjugués
- Département de Chimie
- Pavillon JA Bombardier
- Université de Montréal
- Montréal
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16
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Wałęsa-Chorab M, Tremblay MH, Skene WG. Hydrogen-Bond and Supramolecular-Contact Mediated Fluorescence Enhancement of Electrochromic Azomethines. Chemistry 2016; 22:11382-93. [PMID: 27388588 DOI: 10.1002/chem.201600859] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/11/2016] [Indexed: 11/09/2022]
Abstract
An electronic push-pull fluorophore consisting of an intrinsically fluorescent central fluorene capped with two diaminophenyl groups was prepared. An aminothiophene was conjugated to the two flanking diphenylamines through a fluorescent quenching azomethine bond. X-ray crystallographic analysis confirmed that the fluorophore formed multiple intermolecular supramolecular bonds. It formed two hydrogen bonds involving a terminal amine, resulting in an antiparallel supramolecular dimer. Hydrogen bonding was also confirmed by FTIR and NMR spectroscopic analyses, and further validated theoretically by DFT calculations. Intrinsic fluorescence quenching modes could be reduced by intermolecular supramolecular contacts. These contacts could be engaged at high concentrations and in thin films, resulting in fluorescence enhancement. The fluorescence of the fluorophore could also be restored to an intensity similar to its azomethine-free counterpart with the addition of water in >50 % v/v in tetrahydrofuran (THF), dimethyl sulfoxide (DMSO), and acetonitrile. The fluorophore also exhibited reversible oxidation and its color could be switched between yellow and blue when oxidized. Reversible electrochemically mediated fluorescence turn-off on turn-on was also possible.
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Affiliation(s)
- Monika Wałęsa-Chorab
- Laboratoire de caractérisation photophysique des matériaux conjugués, Département de chimie, Université de Montréal, CP 6128, Centre-ville Montreal, QC, Canada.,Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614, Poznań, Poland
| | - Marie-Hélène Tremblay
- Laboratoire de caractérisation photophysique des matériaux conjugués, Département de chimie, Université de Montréal, CP 6128, Centre-ville Montreal, QC, Canada
| | - William G Skene
- Laboratoire de caractérisation photophysique des matériaux conjugués, Département de chimie, Université de Montréal, CP 6128, Centre-ville Montreal, QC, Canada.
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17
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Extended benzodifuran–thiophene systems connected with azomethine junctions: synthesis and electronic properties. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.07.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Perju E, Ghimpu L, Hitruc G, Harabagiu V, Bruma M, Marin L. Organic–inorganic hybrid nanomaterials based on inorganic oxides and a mesomorphic polyazomethine. HIGH PERFORM POLYM 2015. [DOI: 10.1177/0954008315584172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Organic–inorganic hybrid materials have been obtained by impregnating a mesomorphic polyazomethine into a porous inorganic matrix of zinc oxide (ZnO), tin dioxide (SnO2), or mixed ZnO/SnO2. The porous inorganic matrix has been obtained by magnetron sputtering technique and proved a very high crystallinity degree. The resulting hybrid materials were characterized from morphological and optical points of view by scanning electron microscopy, atomic force microscopy, and ultraviolet-visible and photoluminescence spectroscopy. The inorganic matrix itself exhibited a highly rough surface, which became smoother after polymer impregnation, indicating its complete coverage. The violet emission of the separate inorganic and organic components turned into a blue and green light emission, respectively, of the hybrid materials, suggesting the possibility to modulate the color of emitted light by the simple choice of the inorganic matrix. Considerations with regard of interface phenomena that prompted the photophysical changes of the hybrid materials were done.
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Affiliation(s)
- Elena Perju
- “Petru Poni” Institute of Macromolecular Chemistry, Iaşi, Romania
| | - Lidia Ghimpu
- Institute of Electronic Engineering and Nanotechnologies of ASM, Chisinau, Republic of Moldova
| | - Gabriela Hitruc
- “Petru Poni” Institute of Macromolecular Chemistry, Iaşi, Romania
| | | | - Maria Bruma
- “Petru Poni” Institute of Macromolecular Chemistry, Iaşi, Romania
| | - Luminita Marin
- “Petru Poni” Institute of Macromolecular Chemistry, Iaşi, Romania
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19
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Sun MJ, Nie HJ, Yao JN, Zhong YW. Bis-triarylamine with a cyclometalated diosmium bridge: A multi-stage redox-active system. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.03.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Farcas A, Resmerita AM, Aubert PH, Ghosh I, Cantin S, Nau WM. Synthesis, Photophysical, and Morphological Properties of Azomethine-Persylilated α-Cyclodextrin Main-Chain Polyrotaxane. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201400543] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Aurica Farcas
- “P. Poni” Institute of Macromolecular Chemistry; 41A Gr. Ghica Voda Alley Iasi 700487 Romania
| | - Ana-Maria Resmerita
- “P. Poni” Institute of Macromolecular Chemistry; 41A Gr. Ghica Voda Alley Iasi 700487 Romania
| | - Pierre-Henri Aubert
- Laboratoire de Physicochimie des Polymères et des Interfaces; Institut des Matériaux; Université de Cergy-Pontoise; 5 Mail Gay Lussac Neuville sur Oise 95031 Cergy-Pontoise Cedex France
| | - Indrajit Ghosh
- Jacobs University; School of Engineering and Science; D-28759 Bremen Germany
| | - Sophie Cantin
- Laboratoire de Physicochimie des Polymères et des Interfaces; Institut des Matériaux; Université de Cergy-Pontoise; 5 Mail Gay Lussac Neuville sur Oise 95031 Cergy-Pontoise Cedex France
| | - Werner M. Nau
- Jacobs University; School of Engineering and Science; D-28759 Bremen Germany
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21
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Nie HJ, Yao CJ, Shao JY, Yao J, Zhong YW. Oligotriarylamines with a Pyrene Core: A Multicenter Strategy for Enhancing Radical Cation and Dication Stability and Tuning Spin Distribution. Chemistry 2014; 20:17454-65. [DOI: 10.1002/chem.201403847] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Indexed: 01/24/2023]
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22
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Near-Infrared Electrochromism in Electropolymerized Metallopolymeric Films of a Phen-1,4-diyl-Bridged Diruthenium Complex. Inorg Chem 2014; 53:11316-22. [DOI: 10.1021/ic5019967] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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23
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Stefanache A, Balan M, Harabagiu V, Aubert PH, Guegan P, Farcas A. Electro-optical properties of aromatic oligoazomethine/permethylated α-cyclodextrin main-chain polyrotaxanes. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.03.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Wałęsa-Chorab M, Skene WG. On-substrate polymerization – a versatile approach for preparing conjugated polymers suitable as electrochromes and for metal ion sensing. RSC Adv 2014. [DOI: 10.1039/c4ra00721b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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25
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Sahu H, Panda AN. Computational investigation of charge injection and transport properties of a series of thiophene–pyrrole based oligo-azomethines. Phys Chem Chem Phys 2014; 16:8563-74. [DOI: 10.1039/c3cp55243h] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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26
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Navarathne D, Skene WG. Towards electrochromic devices having visible color switching using electronic push-push and push-pull cinnamaldehyde derivatives. ACS APPLIED MATERIALS & INTERFACES 2013; 5:12646-12653. [PMID: 24256440 DOI: 10.1021/am4040009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A series of symmetric and unsymmetric conjugated azomethines derived from cinnamaldehyde and 2,5-diaminothiophene-3,4-dicarboxylic acid diethyl ester were prepared. The optical, electrochemical, and spectroelectrochemical properties of the electronic push-pull and push-push triads were investigated. Their properties could be tuned contingent on the cinnamaldehyde's electron withdrawing and donating substituents. The push-push symmetric derivative exhibited positive solvatochromism with the absorbance spanning some 31 nm, depending on the solvent polarity. Solvent dependent spectroelectrochemistry was also found for the symmetric push-push azomethine. The color of the neutral state and radical cation spanned 215 nm. The most pronounced color transition of the purple colored material was found in dimethyl sulfoxide (DMSO), where the color bleached with electrochemical oxidation. This was a result of the absorbance shifting into the near infrared (NIR) and not from decomposition of the azomethine. Electrochromic devices with the azomethines possessing desired reversible oxidation and color changes in the visible were fabricated and tested to demonstrate the applicability of these azomethine triads in devices.
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Affiliation(s)
- Daminda Navarathne
- Laboratoire de caractérisation photophysique des matériaux conjugués, Department of Chemistry, Pavillon JA Bombardier, Université de Montréal , CP 6128, succ. Centre-ville, Montreal, Quebec H3C 3J6, Canada
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27
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Bolduc A, Dufresne S, Skene WG. The six-membered-ring azomethine N-((E)-{5-[(E)-(pyridin-3-ylimino)methyl]thiophen-2-yl}methylidene)pyridin-3-amine. Acta Crystallogr C 2013; 69:1196-9. [PMID: 24096515 DOI: 10.1107/s0108270113024566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 09/03/2013] [Indexed: 11/10/2022] Open
Abstract
The title compound, C16H12N4S, forms a three-dimensional layered network structure via intermolecular hydrogen bonding and π-stacking. The azomethine molecule adopts the thermodynamically stable E regioisomer and the pyridine substituents are antiperiplanar. The mean planes of the pyridine rings and the azomethine group to which they are connected are twisted by 27.27 (5) and 33.60 (5)°. The electrochemical energy gap of 2.3 eV based on the HOMO-LUMO energy difference is in agreement with the spectroscopically derived value.
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Affiliation(s)
- Andréanne Bolduc
- Department of Chemistry, Université de Montréal, CP 6128, Succ. Centre-ville, Montréal, Québec, H3C 3J7, Canada
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28
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Bolduc A, Al Ouahabi A, Mallet C, Skene WG. Insight into the isoelectronic character of azomethines and vinylenes using representative models: a spectroscopic and electrochemical study. J Org Chem 2013; 78:9258-69. [PMID: 23947394 DOI: 10.1021/jo401497z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A series of azomethine and vinylene dyad and triad analogues were prepared. Their absorbance, fluorescence, and redox properties were examined experimentally and theoretically using density functional theory (DFT) calculations. These measurements were done to determine the effect of the heteroatom of the azomethine relative to its all-carbon counterpart and to assess the isoelectronic character of the two bonds. The orientation of the azomethine was found to have little effect on the absorbance, fluorescence, and electrochemical properties. In contrast, the spectral and electrochemical properties were highly contingent on the electronic groups and degree of conjugation. The spectral properties could be tuned 200 nm across the visible region. More importantly, the heteroatom in the conjugated bond was found to give rise to only a 20 nm bathochromic shift in the absorbance and fluorescence spectra. The fluorescence quantum yield (ΦFl) of the vinylene derivatives varied between 5% and 20% with fluorescence quenching occurring by photoisomerization from the E to Z isomers. In contrast, the fluorescence of the analogous azomethine derivatives was completely quenched. The collective spectroscopic and electrochemical ab initio DFT data additionally confirmed that the azomethine and its analogous vinylene are isoelectronic. It was also found that a conjugated thiophene vinylene dyad with primary amines in the α,α'-positions could be prepared and isolated. The compound was stable under aerobic conditions providing electron withdrawing (either ester or nitrile) groups were located in the adjacent positions.
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Affiliation(s)
- Andréanne Bolduc
- Laboratoire de caractérisation photophysique des matériaux conjugués, Département de Chimie, Université de Montréal , CP 6128, Centre-ville Montreal, QC H3C 3J7, Canada
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29
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Barik S, Skene WG. Turning-on the Quenched Fluorescence of Azomethines through Structural Modifications. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201502] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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