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Influence of the cavity size of cyclodextrins on the photochromism of azoimidazoles. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2021.100295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ryazantsev MN, Strashkov DM, Nikolaev DM, Shtyrov AA, Panov MS. Photopharmacological compounds based on azobenzenes and azoheteroarenes: principles of molecular design, molecular modelling, and synthesis. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr5001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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3
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{μ-Bis(diphenylphosphino)methane}(1-alkyl-2-(arylazo)imidazole) copper(I) perchlorate: Synthesis, structure and photochromism. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Khan RA, Dielmann F, Liu X, Hahn FE, Al-Farhan K, Alsalme A, Reedijk J. Tetrahedrally coordinated luminescent copper(I) compounds containing halide, phosphane and norharmane ligands. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.03.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Zhao L, Zhou PW, Zhao GJ. Non-adiabatic dynamics simulation exploration of the wavelength-dependent photoinduced relaxation mechanism of trans-N-1-methyl-2-(tolylazo) imidazole in the gas phase. RSC Adv 2016. [DOI: 10.1039/c6ra11416d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
A comprehensive picture of the photoinduced non-adiabatic relaxation dynamics of trans-N-1-methyl-2-(tolylazo) imidazole (trans-MTAI) in different electronic excited states has been revealed using the on-the-fly surface hopping method at the ab initio CASSCF level.
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Affiliation(s)
- Li Zhao
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Pan-Wang Zhou
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Guang-Jiu Zhao
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
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Khalaji AD, Jafari K, Fejfarova K, Dusek M. Crystal structure of the copper(I) complex Cu(py-Clan)(PPh3)I. J STRUCT CHEM+ 2015. [DOI: 10.1134/s0022476615010230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Dihalo-bis[1-alkyl-2-{( o -thioalkyl)phenylazo}imidazole]zinc(II): Structure, photochromism and DFT computation. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.09.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Syntheses and catalytic oxidation of tetrameric and polymeric copper(II) 1,3-propanediaminetetraacetates. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.03.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Sarkar SK, Jana MS, Mondal TK, Sinha C. Alcohol oxidation reactions catalyzed by ruthenium-carbonyl complexes of thioarylazoimidazoles. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3174] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shyamal Kumar Sarkar
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
| | - Mahendra Sekhar Jana
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
| | - Tapan Kumar Mondal
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
| | - Chittaranjan Sinha
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
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Datta P, Mallick D, Mondal TK, Sinha C. Structure and photochromism of zinc(II) complexes with 1-alkyl-2-(arylazo)imidazole, and the effect of number of coordinated ligands and halide type on the photochromism. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.01.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Gayen P, Sarker KK, Sinha C. The photochromism of 1-alkyl-2-(arylazo)imidazoles embedded in micelles. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.03.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Saha Halder S, Roy S, Kumar Mondal T, Saha R, Sinha C. 1-Alkyl-2-{(O-Thioalkyl)Phenylazo}Imidazole Complexes of PbIIand Their Photochromic Property. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Gayen P, Sinha C. Transducer influence of polycyclic aromatic hydrocarbons (PAHs) on photoisomerisation of 1-alkyl-2-(arylazo)imidazoles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 104:477-485. [PMID: 23280446 DOI: 10.1016/j.saa.2012.11.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 11/06/2012] [Accepted: 11/08/2012] [Indexed: 06/01/2023]
Abstract
The UV light irradiation to a solution of 1-alkyl-2-(arylazo)imidazole (L) in toluene shows transformation of trans to cis configuration about -N=N- bond. The rate of photo-isomerisation and quantum yields are influenced by internal parameters like - nature of substituents, coordination to metal ions, steric and electronic effect, protonation etc. and the external factors like solvent (polarity, viscosity, dipole moment etc.), presence of innocent (to be chemically noninteracting) and noninnocent (chemically interacting) ions or molecules. In this work the influence of polycyclic aromatic hydrocarbons (PAH) such as - napththalene, anthracene, phenanthrene, pyrene - an innocent system, on the photochromic efficiency of L has been examined. The PAHs are π-donor and may form a π-π continuum with L which can significantly affect the motional (vibration, rotation) properties of the analyte and hence the photochromic activity. The rate and quantum yield of trans-to-cis isomerisation of L decrease with increasing [PAH] and also with increasing number of the fused phenyl ring(s) in PAH. Thus the photoisomerisation follows the rate sequence: no PAH>napththalene>anthracene-phenanthrene>pyrene. The reverse change, cis-to-trans is very slow upon light irradiation while appreciably fast in thermal process at dark. The activation energy (E(a)) also decreases with [PAH] and number of fused phenyl rings.
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Affiliation(s)
- Pallab Gayen
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
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Jana MS, Pramanik AK, Kundu S, Sarkar D, Jana S, Mondal TK. Synthesis, X-ray structure, spectroscopic and DFT study of cis-[Ru(PPh3)(L)X2] complexes (X=Cl−, Br−, I− and NCS−) (L=1-methyl-2-{(o-thiomethyl)phenylazo}imidazole). Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.09.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Gayen P, Sinha C. Effect of PEG-200 and Tween-20 on photoisomerization of 1-alkyl-2-(arylazo)imidazoles in toluene. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 98:116-121. [PMID: 22986051 DOI: 10.1016/j.saa.2012.08.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 08/11/2012] [Accepted: 08/20/2012] [Indexed: 06/01/2023]
Abstract
The photoisomerization of 1-alkyl-2-(arylazo)imidazole, trans-to-cis, has been studied in the matrix of PEG-200 and Tween-20 in toluene medium by UV light irradiation. The trans and cis-isomers have different absorption spectra. The cis-to-trans isomerization proceeds slowly in visible light irradiation while it is appreciably fast in thermal process. The rate of trans-to-cis isomerization is decreased by 30-60% in presence of PEG-200 and Tween-20. The quantum yield of the photoisomerization is also decreased by 35-55% and follows the rate sequence: free state>PEG-200-phase>Tween-20 phase. The activation energy (E(a)) of cis→trans, thermal backward isomerization, is reduced in PEG-200 and Tween-20 phase following free state>PEG-200-phase>Tween-20-phase. The branched polyhydroxo structure of Tween-20 may help to wrap the polar photochrome more efficiently than major ether functionalized PEG-200 and stabilizes trans-isomer.
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Affiliation(s)
- Pallab Gayen
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
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Haldón E, Álvarez E, Nicasio MC, Pérez PJ. Copper(I) complexes with trispyrazolylmethane ligands: synthesis, characterization, and catalytic activity in cross-coupling reactions. Inorg Chem 2012; 51:8298-306. [PMID: 22831915 DOI: 10.1021/ic300843a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Three novel Cu(I) complexes bearing tris(pyrazolyl)methane ligands, Tpm(x), have been prepared from reactions of equimolar amounts of CuI and the ligands Tpm, (HC(pz)(3)), Tpm*, (HC(3,5-Me(2)-pz)(3)), and Tpm(Ms), (HC(3-Ms-pz)(3)). X-ray diffraction studies have shown that the Tpm and Tpm(Ms) derivatives exhibit a 2:1 Cu:ligand ratio, whereas the Tpm* complex is a mononuclear species in nature. The latter has been employed as a precatalyst in the arylation of amides and aromatic thiols with good activity. The synthesis of a Tpm*Cu(I)-phthalimidate, a feasible intermediate in this catalytic process, has also been performed. Low temperature (1)H NMR studies in CDCl(3) have indicated that this complex exists in solution as a mixture of two, neutral and ionic forms. Conductivity measurements have reinforced this proposal, the ionic form predominating in a very polar solvent such as DMSO. The reaction of Tpm*Cu(I)-phthalimidate with iodobenzene afforded the expected C-N coupling product in 76% yield accounting for its role as an intermediate in this transformation.
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Affiliation(s)
- Estela Haldón
- Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencias de los Materiales, Unidad Asociada al CSIC, Centro de Investigación en Química Sostenible (CIQSO), Campus de El Carmen s/n, Universidad de Huelva, 21007-Huelva, Spain
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Jana MS, Pramanik AK, Kundu S, Mondal TK. Rhenium(I) carbonyl complexes with redox non-innocent 1-alkyl-2-{(o-thioalkyl)phenylazo}imidazole ligands: An experimental and theoretical studies. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.03.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mondal JA, Saha G, Sinha C, Palit DK. Photoisomerization dynamics of N-1-methyl-2-(tolylazo) imidazole and the effect of complexation with Cu(ii). Phys Chem Chem Phys 2012; 14:13027-34. [DOI: 10.1039/c2cp41466j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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