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Photostability of D–π–A nonlinear optical chromophores containing a benzothiazolium acceptor

SYSNO ASEP	0359974
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Photostability of D–π–A nonlinear optical chromophores containing a benzothiazolium acceptor
Author(s)	Cigáň, M. (SK) Gáplovský, A. (SK) Sigmundová, I. (SK) Zahradník, P. (SK) Dědic, R. (CZ) Hromadová, Magdaléna (UFCH-W)_{RID, ORCID, SAI}
Source Title	Journal of Physical Organic Chemistry. - : Wiley - ISSN 0894-3230 Roč. 24, č. 6 (2011), s. 450-459
Number of pages	10 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	photooxidation ; photostability ; singlet oxygen
Subject RIV	CG - Electrochemistry
R&D Projects	GA203/08/1157 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000291361200003
DOI	10.1002/poc.1782
Annotation	For the practical application of second-order NLO materials, not only a high molecular quadratic hyperpolarizability β but also good thermal, chemical, and photochemical stabilities are required. Most of the state-of-the-art chromophores with high NLO response cannot be put to use because they are photochemically highly unstable. Good thermal and photochemical stabilities with preserved high hyperpolarizabilities can be achieved by replacement of an aromatic ring with easily delocalizable heteroaromatics, e.g., with benzothiazole. Furthermore, desirable modifications of the benzothiazole fragment lead to improvement in β values. Here we report results of a comprehensive investigation of the photochemical stability of seven D–π–A push–pull molecules based on a N-methylbenzothiazolium acceptor and a N,N-dimethylaminophenyl donor with a different length of conjugated bridge and different acceptor strength.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2012

Number of the records: 1