Bromine Hyperfine and quadrupole fine structure in the MODR spectrum of sym-tetrabromobenzene in its lowest triplet state |
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| Authors: | C.R. Chen H.J. Yue D.W. Pratt |
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| Affiliation: | Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA |
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| Abstract: | Bromine hyperfine and quadrupole fine structure has been observed in the 3 cm MODR spectrum of the photoexcited 3B1u state of symmetric tetrabromobenzene (s?TBB) in a durene host crystal at liquid helium temperature. A preliminary analysis of the observed structure yields the two in-plane values of the bromine hyperfine tensor |Ay/gβl = 10.3 and |Az/gβ| = 16.5 (for 81Br), and a comparison of these values with those recently observed for the α-bromomaleic acid radical suggests that the correct zero-field scheme in the lowest triplet state of s-TBB is τN > τM > τL. |
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| Keywords: | To whom correspondence should be addressed. |
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