title: Low-energy photoelectron imaging spectroscopy of nitromethane anions: Electron affinity, vibrational features, anisotropies, and the dipole-bound state.
abstract: We present low-energy velocity map photoelectron imaging results for nitromethane anions. The photoelectron spectrum is interpreted with the aid of ab initio theory and Franck-Condon factor calculations. We obtain a new value for the adiabatic electron affinity of nitromethane of (172+/-6) meV and observe the dipole-bound state of nitromethane. The photoelectron angular distributions of the observed features are discussed in the context of threshold laws for photodetachment.
authors.affiliation: JILA, NIST, and Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, USA.
authors.forename: Christopher L
authors.initials: CL
authors.lastname: Adams
authors.forename: Holger
authors.initials: H
authors.lastname: Schneider
authors.forename: Kent M
authors.initials: KM
authors.lastname: Ervin
authors.forename: J Mathias
authors.initials: JM
authors.lastname: Weber