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Photoisomerization of 2,3-diphenylcyclopropane-1-carboxylic acid derivatives

Sivaguru, J.; Jockusch, Steffen; Turro, Nicholas J.; Ramamurthy, V.

Contrary to what is known about cis-1,2-diphenylcyclopropane and its derivatives, we find that they have triplet energies of ca. 311 kJ mol−1, do not undergo intersystem crossing upon direct excitation, undergo the less common adiabatic photoisomerization to the corresponding trans isomers, and show emission from excited 1,3-diradical intermediates.


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Photochemical & Photobiological Sciences

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July 23, 2010
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