ELECTRON SPIN RESONANCE SPECTROSCOPY STUDIES OF RADICAL IONS TRAPPED IN PARA-HYDROGEN MATRICES

Loading...
Thumbnail Image

Date

2003

Journal Title

Journal ISSN

Volume Title

Publisher

Ohio State University

Research Projects

Organizational Units

Journal Issue

Abstract

The ability to trap atomic cation radicals in para-hydrogen at 2K for ESR (electron spin resonance) studies has been demonstrated for the first time in a series of recent experiments in our laboratory. Comparative magnetic parameters (g and A tensors) for ${^{25}}Mg^{+}, {^{67}}Zn^{+}$ and ${^{199,201}}Hg^{+}$ have been measured in neon, argon, krypton, and $p-H_{2}$ matrices. The cations were generated by pulsed laser ablation of the metals, x-irradiation or by a neon discharge photoionization source at 16.8 eV. Atomic hydrogen lines were observed to have unusually narrow linewidths in $p-H_{2}$, in agreement with earlier findings reported by other investigators. The relative intensity of satellite transitions seems to reflect the degree of conversion from $n-H_{2}$ to $p-H_{2}$.

Description

Author Institution: Department of Chemistry, Furman University

Keywords

Citation