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

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About: Photostability of D–π–A nonlinear optical chromophores containing a benzothiazolium acceptor Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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. 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. (en)
Title	Photostability of D–π–A nonlinear optical chromophores containing a benzothiazolium acceptor Photostability of D–π–A nonlinear optical chromophores containing a benzothiazolium acceptor (en)
skos:prefLabel	Photostability of D–π–A nonlinear optical chromophores containing a benzothiazolium acceptor Photostability of D–π–A nonlinear optical chromophores containing a benzothiazolium acceptor (en)
skos:notation	RIV/61388955:_____/11:00359974!RIV12-GA0-61388955
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/08/1157), Z(AV0Z40400503), Z(MSM0021620835)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Hromadová, Magdaléna
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	220291
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/11:00359974
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	photooxidation; photostability; singlet oxygen (en)
http://linked.open.../riv/klicoveSlovo	singlet oxygen photostability photooxidation
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[79740F1DB6FE]
http://linked.open...i/riv/nazevZdroje	Journal of Physical Organic Chemistry
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Tailoring the lock and key motifs in novel low-dimensional structures at electrified interface
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	24
http://linked.open...iv/tvurceVysledku	Hromadová, Magdaléna Cigáň, M. Dědic, R. Gáplovský, A. Sigmundová, I. Zahradník, P.
http://linked.open...ain/vavai/riv/wos	000291361200003
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace Fyzika molekulárních, makromolekulárních a biologických systémů
issn	0894-3230
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/poc.1782

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