Isomerization Intermediates In Solution Phase Photochemistry Of Stilbenes

F. E. Doany; R. M. Hochstrasser; B. I. Greene

doi:10.1117/12.946536

2 April 1985 Isomerization Intermediates In Solution Phase Photochemistry Of Stilbenes

F. E. Doany, R. M. Hochstrasser, B. I. Greene

Proceedings Volume 0533, Ultrashort Pulse Spectroscopy and Applications; (1985) https://doi.org/10.1117/12.946536
Event: 1985 Los Angeles Technical Symposium, 1985, Los Angeles, United States

Abstract

Picosecond and subpicosecond spectroscopic studies have revealed evidence for an isomerization intermediate between cis and trans in the photoinduced isomerism of both stilbene and biindanyledene ("stiff" stilbene). In stiff stilbene, a transient absorption at 351 nm displays time evolution and viscosity dependence consistent with absorption by a twisted intermediate ("phantom" state) with a lOps lifetime. An analagous bottleneck state with a life-time of 4ps is also consistent with the ground state recovery dynamics of t-stilbene following excitation of c-stilbene when monitored with 0.1ps resolution.

Citation Download Citation

F. E. Doany, R. M. Hochstrasser, and B. I. Greene "Isomerization Intermediates In Solution Phase Photochemistry Of Stilbenes", Proc. SPIE 0533, Ultrashort Pulse Spectroscopy and Applications, (2 April 1985); https://doi.org/10.1117/12.946536

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