High Resolution X Ray Photoelectron Spectroscopy Of Co2 And Other Small Molecules

Download or read book High-resolution X-ray Photoelectron Spectroscopy of CO2 and Other Small Molecules written by Jeffrey A. Hahne and published by . This book was released on 1998 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The carbon is photoelectron spectrum of CO2 has been measured with very high photon energy resolution. The natural lifetime of the carbon is hole state has been determined from a series of spectra taken at photon energies of 308, 320, and 330 eV. The measured values of the lifetimes show a dependence on photon energy; this is attributed to failure of the theory of post-collision interaction to predict correctly the observed electron spectrum near threshold. The lifetime widths reported here are critically compared with those values from the literature that are based on other spectroscopic techniques. The oxygen 1s photoelectron spectrum for CO2 has been calculated using ab initio electronic structure theory, a localized hole simulated by the equivalent-cores approximation, and the harmonic oscillator approximation. There is good agreement between the calculated spectrum and a recently reported experimental spectrum.