81639-84-1Relevant articles and documents
The Photochemistry of 1-Cyano-2-methyl-3-phenylpropene and Ring substituted Derivatives
Ferreira, Aurelio B. B.,Salisbury, Kingsley
, p. 25 - 30 (2007/10/02)
The E- and Z-isomers of 1-cyano-2-methyl-3-phenylpropene and ring-substituted derivatives of the E-isomer, are shown to fluoresce and undergo Z-E-isomerization and di-?-methane rearrangement on irradiation.The rate constants for these processes, obtained from fluorescence lifetimes and quantum yields, can be analysed in terms of an initial interaction between the two ? systems, facilitated by partial charge-transfer, followed by two diverging pathways, one, towards a diradicaloid species leading to cyclopropane formation, the other towards a 'zwitterionic' species and relaxation to the ground state and resulting in singlet state Z-E-isommerization.
