(Last minute addition) NON-BORN-OPPENHEIMER VIBRONIC COUPLING AND DEUTERIUM ISOTOPE EFFECT ON $T_{1}-S_{0}$ RADIATIVE TRANSITIONS OF AROMATIC HYDROCARBONS
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Date
1972
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Publisher
Ohio State University
Abstract
Radiative lifetimes of the lowest triplet states are determined for several hydrocarbons from the measured fluorescence quantum yield, phosphorescence quantum yield, and lifetime of phosphorescence. It is found that the radiative lifetime is considerably longer for perdeuterated naphthalene and phenanthrene than for the corresponding perprotonated species. A theoretical explanation is presented which involves a new non-Born-Oppenheimer coupling mechanism.
Description
Author Institution: Department of Chemistry, Northwestern University; Wayne State University, Northwestern University