TIME-RESOLVED RESONANCE RAMAN SPECTROSCOPY OF EXCITED TRIPLET STATES OF DIPHENYLPOLYENES
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Date
1984
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Ohio State University
Abstract
The lowest triplet states $(T_{1})$ of 1, 6-diphenylhexatriene (DPH) and 1, 8 diphenyloctatetraene (DPO) were prepared photo-chemically by energy transfer from the anthracene triplet state. The $T_{1}$ Raman spectra were generated by excitation in resonance with the strong $T_{1} \rightarrow T_{n}$ absorptions in the region 420-440 nm $(\varepsilon \sim 10^{5} M^{-1} cm^{-1})$. The growth and decay of the triplet population, spectral characteristics and structural implications will be discussed.
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Author Institution: Radiation Laboratory and Department of Chemistry, University of Notre Dame