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A Raman spectroscopic study of single crystals of NaH 2 PO 4 · 2H 2 O and NaD 2 PO 4 · 2D 2 O
Author(s) -
ToupryKrauzman N.,
Poulet H.,
Le Postollec M.
Publication year - 1979
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250080210
Subject(s) - raman spectroscopy , chemistry , hydrogen bond , dispersion (optics) , phonon , wavenumber , molecule , crystallography , spectral line , analytical chemistry (journal) , blueshift , nuclear magnetic resonance , molecular physics , materials science , condensed matter physics , optics , physics , organic chemistry , astronomy , optoelectronics , chromatography , photoluminescence
Polarized Raman spectra of single crystals of NaH 2 PO 4 ·2H 2 O and NaD 2 PO 4 ·2D 2 O have been measured as a function of temperature in the wavenumber shift range 10–3600 cm −1 . Changes of phonon frequencies due to directional dispersion are found. All the observed bands have been assigned using group theory. The Raman spectra are fully consistent with the presence of strong acidic hydrogen bonds and the existence of a weakly bound water molecule.