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Laser Raman and infrared spectra of dipotassium tartrate hemihydrate
Author(s) -
Bhattacharjee R.,
Jain Y. S.,
Bist H. D.
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.1250200903
Subject(s) - raman spectroscopy , chemistry , tartrate , crystallography , hemihydrate , ion , spectral line , infrared , infrared spectroscopy , analytical chemistry (journal) , stereochemistry , inorganic chemistry , materials science , optics , organic chemistry , physics , metallurgy , gypsum , astronomy
A systematic analysis of the IR and Raman spectra of dipotassium tartrate hemihydrate (K 2 C 4 H 4 O 6 · ½H 2 O) in terms of the standard frequency correlations, deuteration shift and typical nature (with respect to intensity and width) of bands due to different modes is reported. The bands due to the internal modes (excluding some skeletal modes) of the C 4 H 4 O 6 2−ion appear as doublets. For certain modes (e.g. β CH , ν C(OH) and δ COO ), doublets arise due to interaction between two identical oscillators of two identical groups in COO(HO)HCCH(OH)COO 2− , whereas for other modes (e.g. ν CH , ν CO a , ν CO s , δ COH , and τ COO ) they arise due to crystallographically distinguishable sites for two identical oscillators.