Vibrational spectra, vibrational analysis, and shapes of some 1 : 1 and 1 : 2 addition compounds of group IV tetrahalides with trimethylamine and trimethylphosphine
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 370-377
- https://doi.org/10.1039/j19700000370
Abstract
The vibrational spectra of SiF4,Me3N; SiF4,2Me3N; SiCl4,2Me3P; SiBr4,2Me3P; GeCl4,2Me3P; SnCl4,2Me3P; SiF4,Me3P; SiF4,2Me3P; SiCl4,Me3N; and GeCl4,Me3N are reported (including deuteriation studies in several cases). The preparation and characterisation of the compounds GeCl4,2Me3P and SnCl4,2Me3P is reported. For the 1 : 2 adducts a trans-octahedral shape is strongly suggested by the vibrational data. The vibrational spectra of GeCl4,Me3N (including both solution and oriented single crystal Raman measurements) support a C3v model, as does the data on SiCl4,Me3N. In the case of the 1 : 1 adducts of silicon tetrafluoride a C3v model is acceptable, but not proved.Keywords
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