
TY  - JOUR
A1  - Bowmaker, GA 
A1  - Knappstein, RJ 
A1  - Tham, SF 
T1  - An infrared and Raman spectroscopic study of some Group 1B halide complexes containing an M<sub>4</sub>X<sub>4</sub> core
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1978
VL  - 31
IS  - 10
SP  - 2137
EP  - 2143
KW  - 
UR  - https://doi.org/10.1071/CH9782137 
N2  - The infrared and Raman spectra of [Et3PcuI]4 and [Et3AsCuI]4 have been measured, and bands have been assigned to vibrations of the ligand and of the Td Cu4I4 core. The far-infrared spectra show two strong T2 v(CuI) bands at about 90 and 140 cm-1, the higher frequency member of which has a Raman counterpart which shows possible longitudinal-transverse splitting. The Raman spectra also show an intense band at about 50 cm-1. Similar features have been observed in the low-frequency vibrational spectra of [Et2S]3 [CuI]4, [C5H5NcuI]4, [C5H11NAgI]4, [Et3PAgBr]4 and [Et3PagCl]4, although the last two compounds gave only a single broad band in the v(MX) region. 
ER  -

