Synthesis and Molecular Structure of Ph3GeBO2C2Me4

The germanium-boron compound, Ph(3)GeBpin (pin = 1,2-O2C2Me4), was isolated and the molecular structure was determined by a single crystal X-ray diffraction study at 188 K. The compound crystallizes in an orthorhombic system, space group Pca2(1) and Z = 8 with cell parameters of a = 16.669(4)angstrom, b = 9.933(2)angstrom, c = 26.907(6)angstrom, V = 4455.0(17)angstrom(3). The R-1 [I > 2 sigma(I)] and wR(2) (all data) values are 0.0463 and 0.1196, respectively, for all 9468 independent reflections. The molecular structure analysis reveals the boron atom lies in a roughly trigonal environment that contains one pinacolato group. The asymmetric unit contains two independent molecules and the B-Ge bond distances for the two molecules are 2.073(10) and 2.051(14)angstrom.