Journal article
The Intermolecular SH⋅⋅⋅Y (Y=S,O) Hydrogen Bond in the H2S Dimer and the H2S-MeOH Complex
Chemphyschem, Vol.14(5), pp.905-914
04/02/2013
DOI: 10.1002/cphc.201201012
Abstract
The nature of the S−H⋅⋅⋅S hydrogen-bonding interaction in the H2 S dimer and its structure has been the focus of several theoretical studies. This is partly due to its structural similarity and close relationship with the well-studied water dimer and partly because it represents the simplest prototypical example of hydrogen bonding involving a sulfur atom. Although there is some IR data on the H2 S dimer and higher homomers from cold matrix experiments, there are no IR spectroscopic reports on S−H⋅⋅⋅S hydrogen bonding in the gas phase to-date. We present experimental evidence using VUV ionization-detected IR-predissociation spectroscopy (VUV-ID-IRPDS) for this weak hydrogen-bonding interaction in the H2 S dimer. The proton-donating S−H bond is found to be red-shifted by 31 cm(-1) . We were also able to observe and assign the symmetric (ν1 ) stretch of the acceptor and an unresolved feature owing to the free S−H of the donor and the antisymmetric (ν3 ) SH stretch of the acceptor. In addition we show that the heteromolecular H2 S-MeOH complex, for which both S−H⋅⋅⋅O and O−H⋅⋅⋅S interactions are possible, is S-H⋅⋅⋅O bound.
Details
- Title: Subtitle
- The Intermolecular SH⋅⋅⋅Y (Y=S,O) Hydrogen Bond in the H2S Dimer and the H2S-MeOH Complex
- Creators
- Aditi Bhattacherjee - Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005 (India), Fax: (+91) 22-2278-2106Yoshiyuki Matsuda - Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki-Aoba, Aoba-ku, Sendai, 980-8578 (Japan), Fax: (+81) 22-795-6785Asuka Fujii - Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki-Aoba, Aoba-ku, Sendai, 980-8578 (Japan), Fax: (+81) 22-795-6785Sanjay Wategaonkar - Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005 (India), Fax: (+91) 22-2278-2106
- Resource Type
- Journal article
- Publication Details
- Chemphyschem, Vol.14(5), pp.905-914
- Publisher
- WILEY-VCH Verlag
- DOI
- 10.1002/cphc.201201012
- ISSN
- 1439-4235
- eISSN
- 1439-7641
- Number of pages
- 10
- Language
- English
- Date published
- 04/02/2013
- Academic Unit
- Chemistry
- Record Identifier
- 9984216684202771
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