Remarkable Suppression of [2+2] Cycloaddition during Nonresonant Two-photon Photoreaction of trans-Stilbene in the Presence of Tetramethylethylene |
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| Authors: | Takashi Miyazawa Chengyou Liu Shin-ya Koshihara Mitsuo Kira† |
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| Institution: | Photodynamics Research Center, The Institute of Physical and Chemical Research, Sendai, Japan;Department of Applied Physics, Tokyo Institute of Technology, Tokyo, Japan |
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| Abstract: | Abstract— Nonresonant two-photon excitation of /rans-stilbene in the presence of an excess amount of tetramethylethylene induced predominantly cis-trans isomerization; the 2+2] intermolecular cycloaddition pathway was remarkably suppressed, in contrast to the one-photon excitation under similar conditions, where the cycloaddition is known to be the major pathway. |
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