J. Phys. Chem. 1994,98, 7252-7255
7252
Electron Photodetachment from Halide Ions in Solution: Excited-State Dynamics in the Polarization Well Frederick H. Long,? Xuelong ShiE Hong L U , and ~ Kenneth B. Eisenthal' Department of Chemistry, Columbia University, New York, New York 10027 Received: September 27, 1993; In Final Form: April 12, 1994' The electronic relaxation and photodetachment dynamics of an electron originating from an aqueous iodide ion have been studied using femtosecond absorption spectroscopy. The results indicate the importance of an upper excited charge transfer to solvent (CTTS)state, of odd parity, in the potential well of the solvated ion. The upper excited CTTS state, which is accessed by two-photon excitation, relaxes in
