Solid-state photochemistry of cis-cinnamic acids: a competition between [2 + 2] addition and cis–trans isomerization
- 11 May 2016
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in CrystEngComm
- Vol. 18 (25) , 4708-4712
Abstract
With three examples, we have established that cis-cinnamic acids can dimerize via a diradical intermediate in the crystalline state provided that the intermolecular distance is less than 4.2 Å. In the excited state of cis-isomers, C–C bond formation with an adjacent molecule competes with geometric isomerization.Keywords
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