Photochromic thiophenefulgides : photokinetics of two isopropyl derivatives

Ulrich, Karl; Port, Helmut; Wolf, Hans Christoph; Wonner, Johann; Effenberger, Franz; Ilge, Hans-Dieter

Photochromic thiophenefulgides : photokinetics of two isopropyl derivatives

dc.contributor.author	Ulrich, Karl	de
dc.contributor.author	Port, Helmut	de
dc.contributor.author	Wolf, Hans Christoph	de
dc.contributor.author	Wonner, Johann	de
dc.contributor.author	Effenberger, Franz	de
dc.contributor.author	Ilge, Hans-Dieter	de
dc.date.accessioned	2009-08-28	de
dc.date.accessioned	2016-03-31T11:41:39Z
dc.date.available	2009-08-28	de
dc.date.available	2016-03-31T11:41:39Z
dc.date.issued	1991	de
dc.description.abstract	For two photochromic isopropyl-thiophenefulgides a complete photokinetic analysis is given. For one compound (5b), the partial quantum yield for the colouring process (ΦEC = 54%) is the highest value found for thiophenefulgides. EZ-isomerisations do not play an important role. The colouring quantum yield is temperature independent down to 20 K, whereas bleaching requires little thermal activation. In case of an adamantylidene substituted isopropyl-thiophenefulgide (5c), the bleaching efficiency (ΦCE = 31%) is very high. Upon heating of the cyclic products, thermal bleaching occurs with an activation energy of 1 eV.	en
dc.identifier.other	316187003	de
dc.identifier.uri	http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-44209	de
dc.identifier.uri	http://elib.uni-stuttgart.de/handle/11682/7012
dc.identifier.uri	http://dx.doi.org/10.18419/opus-6995
dc.language.iso	en	de
dc.rights	info:eu-repo/semantics/openAccess	de
dc.subject.classification	Isopropylgruppe , Photochrome Verbindungen	de
dc.subject.ddc	530	de
dc.title	Photochromic thiophenefulgides : photokinetics of two isopropyl derivatives	en
dc.type	article	de
ubs.fakultaet	Fakultätsübergreifend / Sonstige Einrichtung	de
ubs.fakultaet	Fakultät Mathematik und Physik	de
ubs.fakultaet	Fakultät Chemie	de
ubs.institut	Sonstige Einrichtung	de
ubs.institut	3. Physikalisches Institut	de
ubs.institut	Institut für Organische Chemie	de
ubs.opusid	4420	de
ubs.publikation.source	Chemical Physics 154 (1991), S. 311-327. URL http://dx.doi.org./10.1016/0301-0104(91)80081-R	de
ubs.publikation.typ	Zeitschriftenartikel	de

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