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Excited state dipole moments of benzophenone in singlet and triplet n states

1971; Elsevier BV; Volume: 38; Issue: 1 Linguagem: Inglês

10.1016/0022-2852(71)90102-0

1096-083X

Robin M. Hochstrasser, Lewis J. Noe,

Advanced Chemical Physics Studies

The dipole moments of the lowest 3nπ∗ and 1nπ∗ excited states of benzophenone have been determined by optical spectroscopic methods and are 1.79 D and 1.46 D respectively; these values refer to the benzophenone molecules in a polar lattice assuming a ground state moment of 2.98 D. It was possible to obtain an accurate comparison of the change in dipole moment for the singlet and triplet states of ΔμsΔμτ = 0.78, and this number most likely does not depend so critically on the details of the microscopic part of the internal field.