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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/4553

Title: Infrared and polarized Raman spectra of Cu(HSeO3)2 • H20 single crystal
Authors: Junaid, Bushiri M
Ratheesh, R
Suresh, G
Nayar, V U
Issue Date: 31-Aug-1995
Publisher: Elsevier
Abstract: Infrared and polarized Raman spectra of Cu(HSeO3) 2 - H20 single crystal have been recorded and analysed. The appearance of non-degenerate Se-OH stretching vibrations in the ~x: and ~y: polarizations of Raman spectra indicate distortion of the HSeO~- ion in the Cu(HSeO3)2 - H20 crystal. The low wavenumber values obtained for the symmetric and asymmetric stretching vibrations of the HSeO 3 ion are consistent with the strong hydrogen bonding and the influence of Jahn-Teller distortion as predicted in X-ray diffraction data. The shifting of the stretching and bending vibrations of the hydroxyl groups and water molecules from the free state values also confirms the strong hydrogen bonding in this crystal. Broad bands observed for both stretching and bending regions become sharp in the Raman spectrum recorded at 77 K. A doublet appears for the Se-OH stretching mode at this temperature indicating the settling of protons in an ordered position and the absence of intrabond proton tunnelling
Description: Speetrochimica Acta Part A 51 (1995) 1509-1515
URI: http://dyuthi.cusat.ac.in/purl/4553
Appears in Collections:Dr.Junaid Bushiri M

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