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Raman spectra of the tetrabutylammonium diiodoaurate(I) crystal, TBA‐AuI 2 , without I 3 − impurity bands
Author(s) -
Ohtsuka Itaru,
Nakayama Hideyuki,
Ishii Kikujiro
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.1250200804
Subject(s) - raman spectroscopy , impurity , chemistry , crystal (programming language) , analytical chemistry (journal) , spectral line , resonance (particle physics) , nuclear magnetic resonance , crystallography , optics , chromatography , organic chemistry , atomic physics , physics , astronomy , computer science , programming language
Raman spectra of carefully purified (n‐C 4 H 9 ) 4 N + AuI 2 − (TBA‐AuI 2 ) were measured between 89 K and room temperature. The bands observed around 110 cm −1 in one of the previously reported spectra are ascribed to I 3 − impurity. Spectra of TBA‐AuI 2 and TBA‐I 3 were compared, and the principal bands assigned. The resonance Raman effect of I 3 − makes its Raman bands prominent in the impure TBA‐AuI 2 samples. The crystal symmetries of the above two salts at low temperature are briefly discussed.