# VIBRATIONAL ZEKE PHOTOELECTRON SPECTROSCOPY OF CHLOROBENZENE CATION

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 Title: VIBRATIONAL ZEKE PHOTOELECTRON SPECTROSCOPY OF CHLOROBENZENE CATION Creators: Panov, Sergey I.; Wright, Timothy G.; Miller, Terry A. Issue Date: 1995 Publisher: Ohio State University Abstract: Zero-kinetic-energy (ZEKE) photoelectron spectroscopy was used to probe the vibrational levels in the ground electronic state of the chlorobenzene cation using a two-color photoionization scheme via the $S_{1}$ electronic state of the $neutral^{a}$. Exciting through different $S_{1}$ vibrational levels has revealed mixing of some $S_{1}$ normal coordinates in the ground state of the cation. A previously-identified Fermi resonance in the $S_{1}$ state of the neutral is also confirmed by the ZEKE spectra. The adiabatic ionization energy is measured as $73170 \pm 5 cm^{-1}$. Description: $^{a}$T. G. Wright, S. I. Panov and T. A. Miller J. Chem. Phys. 102(12), XXXX March 1995. Author Institution: The Ohio State University, Columbus, OH 43210; The University, Southampton, United Kingdom S09 1NH URI: http://hdl.handle.net/1811/29638 Other Identifiers: 1995-RF-07