Abstract
Proton transfer in electronically excited molecules represents an elementary photoreaction that often occurs on a subpicosecond time scale. In several compounds, transfer rates have been temporally resolved by femtosecond spectroscopy.1,2 The very short transfer times of the proton of 100-200 fs suggest a barrierless potential surface for proton motion in the excited state. To characterize the reaction mechanism in detail, the study of deuterated compounds is of great interest. In this paper we present the first femtosecond investigation of excited-state deuterium transfer in an aromatic molecule.
© 1991 Optical Society of America
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