The Crystal Structure and Raman Spectrum of Ge(5)Cl(12).GeCl(4) and the Vibrational Spectrum of Ge(2)Cl(6).
The Raman spectrum of Ge(2)Cl(6) shows close analogies with that of the isoelectronic [Ga(2)Cl(6)](2)(-). A band at 262 cm(-)(1) is assigned as principally a Ge-Ge stretching mode. The compound is very moisture-sensitive and decomposes readily in vacuo to give GeCl(4) as one of the products. A sealed sample stored at room temperature gave colorless cuboidal crystals shown by X-ray crystallography to be Ge(5)Cl(12).GeCl(4). The Ge-Ge distance in the neopentyl-like Ge(5) skeleton is 2.420(6) Å, and the Ge-Cl distance in the Ge(5)Cl(12) moiety is 2.119(5) Å whereas in the case of the GeCl(4) molecule it is 2.082(7) Å. The symmetric stretching frequency of the Ge(5) tetrahedron is assigned to the band at 224 cm(-)(1).
Beattie
Ian R.
IR
Department of Geology, University of Southampton, Southampton Oceanographic Centre, Southampton SO14 3ZH, U.K., and Department of Chemistry, University of Southampton, Southampton SO17 1BJ, U.K.
Jones
Peter J.
PJ
Reid
Gillian
G
Webster
Michael
M