and cooling the solution to precipitate the crystalline product or by evaporating the solution to dryness and distilling the residue under reduced pressure. In a typical experiment bis(methoxydimethylsilyl)neocarborane was recovered by the crystallization method in 93.5% yield.C, C '-Bis( dihydroxymethylsilyl )neocarborane (VIII).-This compound is readily prepared by adding excess water to an acetone solution of bis(methyldichlorosilyl)neocarborane (IV) at room temperature. On evaporation in air, the product separates as crystals and can be recrystallized from xylene to give a practically quantitative yield.C,C'-Bis(hydroxydiphenylsilyl)neocarborane (IX).-The preparation is identical with that for VIII using bis(chlorodiphenylsilyl)neocarborane. The crude product is crystallized from Inorganic Chemistry hexane, and bis(hydroxydiphenylsilyl)neocarborane is obtained in practically quantitative yield.C,C'-Bis(methoxydiphenylsilyl)neocarborane (X).-This compound was prepared from 28.1 g. (0.0484 mole) of bis(chlorodiphenylsilyl)neocarborane (III) and 250 ml. of absolute methanol. Ethyl ether (150 ml.) was added to obtain a homogeneous solution and this solution was heated at reflux for 45 min. The product was evaporated to dryness and the residue recrystallized from ethanol. Bis(methoxydiphenylsilyl)neocarborane was recovered in 76% yield.

The structure of indium oxyfluoride InOF has been determined by single-crystal diffraction methods. The orthorhombic unit cell with a=8.356+ 0.005, b= 10-186+0.005, c=7-039+0.005 A, contains sixteen formula units of lnOF in space group Fddd. The structure was solved by Patterson and Fourier techniques and refined by full-matrix least-squares analysis to an R value of 0-059. The indium atom is found to be in a distorted octahedral coordination with an ordered arrangement of oxygen and fluorine atoms. The In-(O,F) octahedra are joined together by edges and corners to form a loose three-dimensional network structure.

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