Upgrade of a Departmental Gas-Phase Photoelectron Spectrometer

University Of Arizona, Tucson AZ

Investigators

Abstract

With support from the Chemistry Research Instrumentation and Facilities (CRIF) Program, the Department of Chemistry at the University of Arizona will upgrade a departmental gas-phase photoelectron spectrometer. This equipment will enhance research in a number of areas including the following: a) studies of metal-metal interactions; b) electron transfer in organic compounds containing heteroatoms; c) evaluation of molybdenum-sulfur interactions in molybdoenzyme model complexes; and d) electronic structure of porphyrins and metalloporphyrins. The X-ray photoelectron spectrometer (XPS) is used for chemical analysis. It irradiates a sample with a beam of monochromatic X-rays and the energies of the resulting photoelectrons are measured and related to specific elements. XPS often plays a crucial role in defining the system under study. The work to be carried out by these investigators represents a highly coherent attack on a range of issues at the forefront of materials chemistry and biology.