The absorption spectrum of 4,4'-dimethyldiphenylmethylene dm 4,4'-dimethylbenzophenone crystals |
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| Authors: | Daniel J. Graham Tien-Sung Lin |
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| Affiliation: | Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA |
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| Abstract: | A polarized absorption study of the low-lying excited triplet states of 4,4'-dimethyldiplicnylmethylene dispersed in single crystals of 4,4'-dimethylbenzophenone at 4.2 K is presented. Polarization measurements of the visible absorption spectrum, commencing at 4841.7 A. yield an electronic configuration of (pσ)1 (π*)1 for the first cxcited triplet state. A second cxcited triplet state, (pπ)1 (π*)1, lies ≈ 800 cm?1 above this. |
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| Keywords: | Present address: Department of Chemistry Boston University Boston Massachusetts 02215 USA. |
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