IR-SPECTRA OF H2S ISOLATED IN FREESTANDING CRYSTALS OF KR AND XE

Infrared spectra of H2S doped in Kr and Xe free-standing crystals have been measured in their S-H stretching region at 17 K. Banded structur es at 2640-2600 cm(-1) in Kr and at 2630-2580 cm(-1) in Xe have been a ssigned mainly to the rotational contours of the nu(3) band of isolate d H2S in the crystals. Sharp peaks at 2575 cm(-1) in Kr and 2573 cm(-1 ) in Xe, assignable to hydrogen-bonded S-H, have also been observed. A parallel relationship between the spectral position of isolated H2S a nd the polarizability of the host molecule has been observed. (C) 1998 Elsevier Science B.V. All rights reserved.