Abstract
Infra-red spectra are reported of 1,1,1,3,3,3-hexafluoropropan-2-ol (HFP) and its deuterated derivatives in argon, nitrogen, and carbon monoxide matrices at 20 K. Two main conformers (Cs and Cl) are observed in nitrogen and carbon monoxide matrices, as in the vapour phase and carbon tetrachloride solution at room temperature, but only the Cs conformer is found in an argon matrix. The fine structure of the OH stretching absorption of the Cs conformer in matrices displays irreversible changes on temperature cycling, suggesting that there are two species with closely similar structures. A vibrational assignment is presented for each of the conformers.
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