Photoinduced and thermal isomerization processes for bis-oxonols: rotor volume, stereochemical and viscosity effects

AC Benniston, A Harriman

文献索引：Benniston, Andrew C.; Harriman, Anthony Journal of the Chemical Society, Faraday Transactions, 1994 , vol. 90, # 18 p. 2627 - 2634

全文：HTML全文

被引用次数: 22

摘要

Four bis-oxonols have been synthesized which possess different alkyl substituents appended to the thiobarbiturate subunit. The nature of the alkyl substituent affects the photophysical properties of the dye in solution since it modulates the rate of rotation of the thiobarbiturate subunit around one of the double bonds in the connecting trimethine bridge. Rates of light-induced (trans to cis) and thermal (cis to trans) isomerization processes ...