ChemInform Abstract: DETERMINATION OF THE CONFORMATIONAL BARRIERS TO INTERNAL ROTATION OF 3-FLUOROPROPENE FROM FAR INFRARED AND LOW FREQUENCY RAMAN SPECTRA

1985 ◽  
Vol 16 (14) ◽  
Author(s):  
J. R. DURIG ◽  
M. ZHEN ◽  
T. S. LITTLE
Keyword(s):  
Internal Rotation ◽  
Raman Spectra ◽  
Low Frequency ◽  
Far Infrared ◽  
Barriers To Internal Rotation

An infrared and Raman spectroscopic study of some Group 1B halide complexes containing an M4X4 core

1978 ◽  
Vol 31 (10) ◽  
pp. 2137 ◽  
Author(s):  
GA Bowmaker ◽  
RJ Knappstein ◽  
SF Tham
Keyword(s):  
Raman Spectra ◽  
Broad Band ◽  
Low Frequency ◽  
Far Infrared ◽  
Infrared And Raman Spectra ◽  
Intense Band ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study ◽  
Halide Complexes ◽  
Far Infrared Spectra

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.

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