dc.creator Calvi, Ryan en_US dc.creator Andrews, Django H. en_US dc.creator Lineberger, W. Carl en_US dc.date.accessioned 2008-01-12T12:58:41Z dc.date.available 2008-01-12T12:58:41Z dc.date.issued 2006 en_US dc.identifier 2006-WF-13 en_US dc.identifier.uri http://hdl.handle.net/1811/30768 dc.description Author Institution: JILA and Department of Chemistry and Biochemistry, University of Colorado and National Institute of Standards and Technology, Campus Box 440, University of Colorado, Boulder, Colorado 80309-0440 en_US dc.description.abstract We report the measurement of the electron binding energies of size selected IBr$^-$(CO$_2$)$_n$, n$<$10 cluster anions. The data are interpreted using {\it ab initio} calculations and Franck-Condon simulations to assist in the assignment of the photoelectron spectra. The IBr(CO$_2$)$_n$ anion are formed by a 1 kV electron impact on dilute IBr and CO$_2$ in a pulsed supersonic expansion. Time-of-flight mass spectrometry allows a size-selected cluster anion to interact with a pulsed ultraviolet laser radiation tunable between 210 and 320 nm. The photodetached electrons are energy analyzed using a photoelectron imaging spectrometer operating in the velocity map imaging mode. The spectrometer determines electron kinetic energy, with an energy resolution of 2.5 percent. Trends in electron binding energy as a function of size will be discussed in regard to the trend that develops upon the addition of each cluster, and compared to previous photoelectron spectroscopy of I$_{2}^{\!\!\!-}$(CO$_2$)$_n$ clusters. Supported by NSF and AFOSR. en_US dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title MEASUREMENT OF THE ELECTRON BINDING ENERGY OF SIZE SELECTED IBr$^-$(CO$_2$)$_n$ CLUSTERS THROUGH ANION PHOTOELECTRON IMAGING en_US dc.type article en_US
﻿