Crystals of the title compound are monoclinic, space group P21/n with unit-cell dimensions a = 9.375(4), b = 15.985(3), c = 16.033(7) Å, and β = 93.56(5)°. The structure has been solved using 6 068 observed reflections recorded at ca. 215 K on a four-circle diffractometer, and refined by least squares to R 0.047. The geometry of the cage is that of a highly distorted icosahedron in which the platinum atom 'slips' towards B (8) and the metal-bonded face 'folds' across B(4) ⋯ B(7). Molecular-orbital calculations based on the extended-Hückel approximation have accounted for the 'slip' and 'fold' distortions observed in this and related Carbametallaboranes.
|Number of pages||12|
|Journal||Journal of the Chemical Society, Dalton Transactions|
|Publication status||Published - 1978|
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