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Heat of formation for the SH radical by photoionization mass spectrometry |
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| Authors: | John C Traeger |
| Abstract: | Photoionization mass spectrometry has been used to measure the appearance energies for C2H5]+ from ethanethiol, C3H7]+ from 2-propanethiol and C3H5]+ from 2-methylthiirane. From the known thermochemistry of these cations and their precursor molecules, a 298 K heat of formation of 138.6±0.4 kJ mol?1 for the SH radical has been derived. |
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