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Updated: Apr 19, 2026

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
Published on: July 27, 2018
Communication: vacuum ultraviolet photoabsorption of interstellar icy thiols
Radha Gobinda Bhuin1, Bhalamurugan Sivaraman2, Jen-Iu Lo3
1Department of Chemistry, Indian Institute of Technology - Madras, Chennai, India.
Abstract:
Following the recent identification of ethanethiol in the interstellar medium (ISM) we have carried out Vacuum UltraViolet (VUV) spectroscopy studies of ethanethiol (CH3CH2SH) from 10 K until sublimation in an ultrahigh vacuum chamber simulating astrochemical conditions. These results are compared with those of methanethiol (CH3SH), the lower order thiol also reported to be present in the ISM. VUV spectra recorded at higher temperature reveal conformational changes in the ice and phase transitions whilst evidence for dimer production is also presented.
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