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Polarized Raman spectra and intensity analysis of Na 4 P 2 O 7 . 10H 2 O and PO stretches in (VO) 2 P 2 O 7
Author(s) -
Kanesaka Isao,
Ozaki Kenichi,
Matsuura Ikuya
Publication year - 1995
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.1250261104
Subject(s) - raman spectroscopy , infrared , analytical chemistry (journal) , intensity (physics) , chemistry , crystallite , infrared spectroscopy , ion , spectral line , nuclear magnetic resonance , crystallography , physics , optics , organic chemistry , chromatography , astronomy
The polarized Raman spectra of Na 4 P 2 O 7 .10H 2 O and the infrared and Raman spectra in the polycrystalline state were recorded at room temperature. A normal coordinate analysis of Na 4 P 2 O 7 .10H 2 O and Raman and infrared intensity analyses in the P—O stretching region were carried out and the force field and the intensity parameters for the P 2 O 7 4−ion obtained. These results were transferred and used to analyse the P—O stretches in (VO) 2 P 2 O 7 , whose infrared spectrum depends largely on the preparation method. It is concluded that α‐(VO) 2 P 2 O 7 corresponds to the Gorbunova and Linde structure, while the γ‐form probably has disordered (VO) sites.