The Crystal Structure and Raman Spectrum of Ge(5)Cl(12).GeCl(4) and the Vibrational Spectrum of Ge(2)Cl(6).
IanR. Beattie, PeterJ. Jones, Gillian Reid, Michael Webster
Index: Inorg. Chem. 37 , 6032, (1998)
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Abstract
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) _, and the Ge-Cl distance in the Ge(5)Cl(12) moiety is 2.119(5) _ whereas in the case of the GeCl(4) molecule it is 2.082(7) _. The symmetric stretching frequency of the Ge(5) tetrahedron is assigned to the band at 224 cm(-)(1).
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