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Photochemical cis/trans isomerization of a stilbazolium betaine : a protolytic/photochemical reaction cycle

Photochemical cis/trans isomerization of a stilbazolium betaine : a protolytic/photochemical reaction cycle

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STEINER, Ulrich, Mahmoud H. ABDEL-KADER, P. FISCHER, Horst E. A. KRAMER, 1978. Photochemical cis/trans isomerization of a stilbazolium betaine : a protolytic/photochemical reaction cycle. In: Journal of the American Chemical Society. 100(10), pp. 3190-3197. ISSN 0002-7863

@article{Steiner1978Photo-10005, title={Photochemical cis/trans isomerization of a stilbazolium betaine : a protolytic/photochemical reaction cycle}, year={1978}, doi={10.1021/ja00478a039}, number={10}, volume={100}, issn={0002-7863}, journal={Journal of the American Chemical Society}, pages={3190--3197}, author={Steiner, Ulrich and Abdel-Kader, Mahmoud H. and Fischer, P. and Kramer, Horst E. A.} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/10005"> <dc:contributor>Abdel-Kader, Mahmoud H.</dc:contributor> <dcterms:bibliographicCitation>First publ. in: Journal of the American Chemical Society 100 (1978), 10, pp. 3190-3197</dcterms:bibliographicCitation> <dc:format>application/pdf</dc:format> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:creator>Abdel-Kader, Mahmoud H.</dc:creator> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/10005"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:15:55Z</dc:date> <dc:creator>Fischer, P.</dc:creator> <dc:language>eng</dc:language> <dc:contributor>Fischer, P.</dc:contributor> <dc:creator>Steiner, Ulrich</dc:creator> <dcterms:issued>1978</dcterms:issued> <dc:rights>deposit-license</dc:rights> <dc:creator>Kramer, Horst E. A.</dc:creator> <dc:contributor>Kramer, Horst E. A.</dc:contributor> <dcterms:title>Photochemical cis/trans isomerization of a stilbazolium betaine : a protolytic/photochemical reaction cycle</dcterms:title> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:15:55Z</dcterms:available> <dcterms:abstract xml:lang="eng">Photochemical and thermal cis/trans isomerization is reported for a stilbazolium betaine (M). Obtained from synthesis in the trans configuration, M cannot be isomerized directly but only via the O-protonated form MH+trans. Photoisomerization of MH+trans yields the cis isomer MH+cis (structure established by 1H NMR) which can be deprotonated to the cis betaine. Mcis represents the first example of a cis isomer in this class of compounds. Though fairly stable in aqueous solution, Mcis can be fully reverted to the trans isomer either thermally or photochemically. The sequence Mtrans {\rightleftharpoons} MH+trans {\rightleftharpoons} MH+cis {\rightleftharpoons} Mcis → Mtrans constitutes a complete molecular reaction cycle which may serve as a chemical model for the storage of information and subsequent regeneration of the information carrier, for instance, in biological systems.</dcterms:abstract> <dc:contributor>Steiner, Ulrich</dc:contributor> </rdf:Description> </rdf:RDF>

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