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UV-vis absorption spectra of 1,4-dialkoxy-2,5-bis[2-(thien-2-yl)ethenyl]benzenes
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SYSNO ASEP 0343218 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title UV-vis absorption spectra of 1,4-dialkoxy-2,5-bis[2-(thien-2-yl)ethenyl]benzenes Author(s) Fuks-Janczarek, I. (PL)
Reshak, Ali H (UEK-B)
Kuznik, W. (PL)
Kityk, I. V. (PL)
Gabanski, R. (PL)
Lapkowski, M. (PL)
Motyka, R. (PL)
Suwinski, J. (PL)Number of authors 8 Source Title Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. - : Elsevier - ISSN 1386-1425
Roč. 72, č. 2 (2009), s. 394-398Number of pages 5 s. Language eng - English Country GB - United Kingdom Keywords absorption spectra ; quantum-chemical simulations Subject RIV BO - Biophysics CEZ AV0Z60870520 - UEK-B (2005-2011) UT WOS 000263204200028 DOI 10.1016/j.saa.2008.10.005 Annotation Complex theoretical and experimental studies and quantum-chemical calculations were applied to study the UV-vis spectroscopic features of the novel compounds: three stereoisomers of 1,4-diethoxy-2,5bis[2-(5-methylthien-2-yl)ethenyl]benzene (A-C) and EE isomer of 1,4-diisopropoxy-2,5-bis[2-(thien-2-yl)ethenyl]benzene (D). These structures are the derivatives of 2,5-bis[2-(thien-2-yl)ethenyl]benzene, and belong to a group of thienyl-PPV family that are able to polymerize due to the presence of pi-conjugated bonding system. It was established that such compounds during electropolymerization are strongly dependent on their stereochemistry and on the eventual presence of substituents in alpha-positions. of the tiophene ring. We have obtained a good agreement between the theoretically simulated optical within a framework of TDDFT approach and experimentally measured data. Influence of PMMA polymer matrices on the UV-vis spectra is explored. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2011
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