About: The synthesis, absorption, fluorescence and photoisomerisation of 2-aryl-4-arylmethylidene-pyrroline-5-ones.

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About: The synthesis, absorption, fluorescence and photoisomerisation of 2-aryl-4-arylmethylidene-pyrroline-5-ones. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Syntéza, absorpce, fluorescence a fotoisomerisace 2-aryl-4-arylmethyliden-pyrrolin-5-onů. (cs) Base catalyzed ClaiseneSchmidt type condensation of ethyl-4,5-dihydro-5-oxo-2-phenyl(1H)pyrrole-3-carboxylate and its 2-biphenylyl analogue with various aldehydes was studied. The absorption and fluorescence spectra of ethyl-4,5-dihydro-5-oxo-2-aryl-4-(arylmethylidene)-(1H)pyrrole-3-carboxylate at both room (300 K) and low (77 K) temperatures were analyzed. EeZ photoisomerisation was observed for all derivatives; the Z-isomer was confirmed as being thermodynamically stable by NMR spectroscopy. PM3 quantum chemical Metod was used for ground state geometry calculations of the Z-isomers, while INDO/S calculations enabled interpretation of the absorption spectral shifts. Photoisomerisation forms the main deactivation channel after excitation in fluid solution, in contrast to rigid frozen glass, where fluorescence is preferred. Base catalyzed ClaiseneSchmidt type condensation of ethyl-4,5-dihydro-5-oxo-2-phenyl(1H)pyrrole-3-carboxylate and its 2-biphenylyl analogue with various aldehydes was studied. The absorption and fluorescence spectra of ethyl-4,5-dihydro-5-oxo-2-aryl-4-(arylmethylidene)-(1H)pyrrole-3-carboxylate at both room (300 K) and low (77 K) temperatures were analyzed. EeZ photoisomerisation was observed for all derivatives; the Z-isomer was confirmed as being thermodynamically stable by NMR spectroscopy. PM3 quantum chemical Metod was used for ground state geometry calculations of the Z-isomers, while INDO/S calculations enabled interpretation of the absorption spectral shifts. Photoisomerisation forms the main deactivation channel after excitation in fluid solution, in contrast to rigid frozen glass, where fluorescence is preferred. (en)
Title	The synthesis, absorption, fluorescence and photoisomerisation of 2-aryl-4-arylmethylidene-pyrroline-5-ones. The synthesis, absorption, fluorescence and photoisomerisation of 2-aryl-4-arylmethylidene-pyrroline-5-ones. (en) Syntéza, absorpce, fluorescence a fotoisomerisace 2-aryl-4-arylmethyliden-pyrrolin-5-onů. (cs)
skos:prefLabel	The synthesis, absorption, fluorescence and photoisomerisation of 2-aryl-4-arylmethylidene-pyrroline-5-ones. The synthesis, absorption, fluorescence and photoisomerisation of 2-aryl-4-arylmethylidene-pyrroline-5-ones. (en) Syntéza, absorpce, fluorescence a fotoisomerisace 2-aryl-4-arylmethyliden-pyrrolin-5-onů. (cs)
skos:notation	RIV/00216275:25310/08:00007956!RIV09-MSM-25310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021627501), Z(MSM0021627502)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Hrdina, Radim Jirásko, Robert Lyčka, Antonín Vyňuchalová, Kateřina Luňák, Stanislav
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	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	398711
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/08:00007956
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	2-Aryl-4-arylmethylidene-pyrroline-5-ones; Photoisomerisation; Fluorescence; Pyrrolinone ester (en)
http://linked.open.../riv/klicoveSlovo	2-Aryl-4-arylmethylidene-pyrroline-5-ones Photoisomerisation Pyrrolinone ester Fluorescence
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[AE333D50B6EE]
http://linked.open...i/riv/nazevZdroje	Dyes and Pigments
http://linked.open...in/vavai/riv/obor	CC
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	77
http://linked.open...iv/tvurceVysledku	Hrdina, Radim Luňák, Stanislav Vyňuchal, Jan Jirásko, Robert Lyčka, Antonín Vyňuchalová, Kateřina Havel, Lukáš Hatlapatková, Aneta
http://linked.open...n/vavai/riv/zamer	Aimed preparation of special compounds and materials and investigation of their physical and chemical properties and supramolecular structures Pokročilé analytické a separační metody a jejich aplikace v diagnostice a technologii živých a neživých materiálů
issn	0143-7208
number of pages	11 (xsd:int)
http://localhost/t...ganizacniJednotka	25310

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