Počet záznamů: 1

Imidazole as a Donor/Acceptor Unit in Charge-Transfer Chromophores with Extended pi-Linkers

SYSNO ASEP	0363289
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Imidazole as a Donor/Acceptor Unit in Charge-Transfer Chromophores with Extended pi-Linkers
Tvůrce(i)	Kulhánek, J. (CZ) Bureš, F. (CZ) Pytela, O. (CZ) Mikysek, T. (CZ) Ludvík, Jiří (UFCH-W)_{RID, ORCID}
Zdroj.dok.	Chemistry-An Asian Journal . - : Wiley - ISSN 1861-4728 Roč. 6, č. 6 (2011), s. 1604-1612
Poč.str.	9 s.
Jazyk dok.	eng - angličtina
Země vyd.	DE - Německo
Klíč. slova	charge transfer ; conjugation ; donor-acceptor systems
Vědní obor RIV	CG - Elektrochemie
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000292097700043
DOI	10.1002/asia.201100097
Anotace	Eleven new, stable, push-pull systems that feature 4,5-bis[4-(N,N-dimethylamino)phenyl]imidazole and 4,5-dicyanoimidazole as the donor and acceptor moieties and the systematically extended and varied pi-linker were prepared and investigated. Evaluation of the measured UV/Vis spectra, electrochemical data (cyclic voltammetry (CV), rotating-disc voltammetry (RDV), and polarography) and calculated beta and gamma polarizabilities showed efficient charge transfer (CT) in biimidazole-type chromophores. Push-pull system 27, which features a planar thiophene-derived pi-linker, was revealed to be the most efficient chromophore within the studied series. This chromophore possessed the most bathochromically shifted CT band, the lowest electrochemical gap, and highest beta and gamma polarizabilities.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2012

Počet záznamů: 1