Abstract
The preparation and characterization by far-infrared and Raman spectroscopy of dimethylsulfoxide (dmso) and dimethylsulfoxide-d6 (dmso-d6) complexes of gallium trihalides are reported. The compounds GaX3(dmso)6 (X = Br, I) have ionic structures containing the hexacoordinate cation Ga(dmso)63+. Reaction of gallium trichloride with dmso gives GaCl3(dmso)1.5. This compound appears to be identical with GaCl3(dmso)2 described by other workers and has been shown to have the structure [Ga(dmso)6][GaCl4]3. Some new vibrational data are presented for InX3(dmso)3 (X = Cl, Br) and InI3(dmso)2.
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