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Raman spectral study of the Mg(ClO 4 ) 2 NaNCSH 2 O system at ambient and elevated temperatures
Author(s) -
AntićJovanović A.,
Jeremić M.,
Lalić M.,
Long D. A.
Publication year - 1989
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.1250200808
Subject(s) - raman spectroscopy , chemistry , perchlorate , analytical chemistry (journal) , ion , spectral line , inorganic chemistry , optics , physics , organic chemistry , chromatography , astronomy
Raman spectra of Mg(ClO 4 ) 2 NaNCSH 2 O mixtures were analysed as a function of the concentration ratio of the components at ambient and elevated temperatures. The strong perturbation of the thiocyanate spectrum observed in the regions of the ν 1 and ν 3 vibrations is interpreted in terms of complex formation. Band intensity measurements of resolved bands gave evidence for two complex species: [MgNCS] + and [Mg(NCS) 2 ], the former being discernible over the whole concentration range studied. The variations in the spectrum of the T d perchlorate ion at very low water‐to‐salt molar ratios are explained as indicating a coordination of ClO 4 − unit and lowering of the symmetry of C 2ν .