Počet záznamů: 1

UV-vis absorption spectra of 1,4-dialkoxy-2,5-bis[2-(thien-2-yl)ethenyl]benzenes

  1. 1.
    0343218 - UEK-B 2011 RIV GB eng J - Článek v odborném periodiku
    Fuks-Janczarek, I. - Reshak, Ali H - Kuznik, W. - Kityk, I. V. - Gabanski, R. - Lapkowski, M. - Motyka, R. - Suwinski, J.
    UV-vis absorption spectra of 1,4-dialkoxy-2,5-bis[2-(thien-2-yl)ethenyl]benzenes.
    Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. Roč. 72, č. 2 (2009), s. 394-398 ISSN 1386-1425
    Výzkumný záměr: CEZ:AV0Z60870520
    Klíčová slova: absorption spectra * quantum-chemical simulations
    Kód oboru RIV: BO - Biofyzika
    Impakt faktor: 1.566, rok: 2009

    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.
    Trvalý link: http://hdl.handle.net/11104/0185743