Vibrational spectra of potassium hydrogen maleate crystal and solution

Polarized i.r. transmission and reflection and Raman spectra of potassium hydrogen maleate (KHM) single crystals were measured. The reflection spectra were analysed by means of the four parameter dielectric function. Less complete data were obtained for deuterated single crystals. Solutions of KHM i...

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Bibliographic Details
Published in:Spectrochimica acta. Part A: Molecular spectroscopy 1985, Vol.41 (1), p.75-87
Main Authors: Avbelj, F., Orel, B., Klanjšek, M., Hadži, D.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Infrared and raman spectra and scattering
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Physics
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Summary:Polarized i.r. transmission and reflection and Raman spectra of potassium hydrogen maleate (KHM) single crystals were measured. The reflection spectra were analysed by means of the four parameter dielectric function. Less complete data were obtained for deuterated single crystals. Solutions of KHM in H 2O, D 2O and DMSO were also studied. In analysing the data attention was focused on the hydrogen bond modes. The in-plane modes are strongly mixed with skeletal modes. The analysis of the reflection spectra shows that the B 1 u modes in the region below 1100 cm −1, where the hydrogen bond stretchings are located, are strongly anharmonic.
ISSN:0584-8539
DOI:10.1016/0584-8539(85)80087-8