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Analyse vibrationnelle et structurale en série aliphatique saturée. XI —Spectres de vibration de l'acide 3‐méthylglutarique et de ses sels alcalins
Author(s) -
Roger J.,
Delarbre J. L.,
Maury et L.
Publication year - 2003
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.951
Subject(s) - chemistry , raman spectroscopy , hydrogen bond , intermolecular force , aqueous solution , solid state , sodium salt , infrared , salt (chemistry) , sodium , potassium , stereochemistry , crystallography , inorganic chemistry , molecule , organic chemistry , physics , optics
Raman and infrared spectra of 3‐methylglutaric acid and its sodium salts in aqueous solution (H 2 O and D 2 O) were recorded from 4000 to 200 cm −1 . The analysis of the polarization of the Raman lines indicated that 3‐methylglutaric acid and its disodium salts belong to the C s group whereas the acid salt belongs to the C 1 group. On the basis of the intermolecular hydrogen bond present in the crystalline state of the acid salts, sodium 3‐methylglutarate can be classified as a type B structure whereas two polymorphic forms (A and B) of the potassium salt were identified. Copyright © 2002 John Wiley & Sons, Ltd.