A non-rotatory isomerization path in ethene derivatives? Investigation of a stilbenophane and protonated azobenzenophanes ('pseudo-stilbenophanes')Dedicated to Professor F. Dörr on the occasion of his 80th birthday.Electronic supplementary information (ESI) available: Synthesis of stilbenophane and protonated azobenzenophanes. See http://www.rsc.org/suppdata/cp/b1/b111483m

Autor:	Hermann Rau, Isabella Waldner
Rok vydání:	2002
Předmět:	Negative - answer Stilbenophane Absorption spectroscopy Chemistry General Physics and Astronomy Protonation Emission spectrum Physical and Theoretical Chemistry Photochemistry Excimer Isomerization
Zdroj:	Physical Chemistry Chemical Physics. 4:1776-1780
ISSN:	1463-9084 1463-9076
Popis:	A stilbenophane and protonated azobenzenophanes (“pseudo-stilbenes”) with four –CH2–S–CH2– bridges in all meta-positions were synthesized. The spectroscopic and photochemical properties were investigated: excited dimer absorption spectra and for the stilbenophane also emission spectra were observed. Photochemical reactions could be identified as the [2+2] photocycloaddition for the stilbenophane; the nature of the photoproducts in the case of pseudo-stilbenes could not be established. Photo-isomerizations could not be observed which gives a negative answer to the title question.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a25c9995e6bdfc792dbcbae3ce3afce6 https://doi.org/10.1039/b111483m Zobrazit plný text záznamu