Document Type

Article

Publication Date

1-1991

Publication Title

Physical Review A

Volume

43

Issue

1

First page number:

235

Last page number:

241

Abstract

X-ray emission from the molecule H2S is strongly polarized following excitation of a sulfur K-shell electron to an unoccupied subthreshold molecular orbital with a polarized x-ray beam. Changes in the polarization of the emission spectrum are observed as the incident beam's energy is swept across the subthreshold absorption resonance. The previously unresolved absorption resonance is shown experimentally to be primarily associated with a molecular orbital of b2 symmetry, but with a high-excitation-energy component due to an orbital with a1 symmetry. Satellite emission intensity is shown to depend on the primary photon energy and is therefore associated with multivacancy effects and not with contamination, as previously suggested.

Keywords

Electronic excitation; Hydrogen sulfide; Molecular orbitals; Symmetry (Physics); X-rays — Polarization

Disciplines

Analytical Chemistry | Atomic, Molecular and Optical Physics | Biological and Chemical Physics | Elementary Particles and Fields and String Theory | Physical Chemistry

Language

English

Permissions

Copyright American Physical Society, used with permission

Identifier

DOI: 10.1103/PhysRevA.43.235

UNLV article access

Search your library

Share

COinS