First infrared investigations of OCS–H 2 O, OCS–(H 2 O) 2 , and (OCS) 2 –H 2 O complexes isolated in solid neon: Highlighting the presence of two isomers for OCS–H 2 O

Abstract : For the first time, complexes involving carbonyl sulfide (OCS) and water molecules are studied by FTIR in solid neon. Many new absorption bands close to the known fundamental modes for the monomers give evidence for at least three (OCS)n–(H2O)m complexes, noted n:m. With the help of theoretical calculations, two isomers of the 1:1 complex are clearly identified. Concentration effects combined with a detailed vibrational analysis allow for the identification of transitions for the 1:1, 1:2, and 2:1 complexes. Anharmonic coupling constants have been derived from the observations of overtones and combinations.
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Journal of Chemical Physics, American Institute of Physics, 2017, 146 (23), pp.234303. 〈10.1063/1.4986403〉
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P. Soulard, B. Madebène, B. Tremblay. First infrared investigations of OCS–H 2 O, OCS–(H 2 O) 2 , and (OCS) 2 –H 2 O complexes isolated in solid neon: Highlighting the presence of two isomers for OCS–H 2 O. Journal of Chemical Physics, American Institute of Physics, 2017, 146 (23), pp.234303. 〈10.1063/1.4986403〉. 〈hal-01587670〉

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