J. Bickley, A. Bond, Felipe García, Katja Jantos, Gavin T. Lawson, M. Mcpartlin, A. Steiner, D. Wright
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Syntheses and structures of the cubanes [PhOSb(µ3-NCy)]4and [pyOBi(µ3-NCy)]4(Cy = cyclohexyl, py = 2-pyridyl)
The in situ reaction of the Sb(III) imido dimer [Me2NSb(µ-NCy)]2 with PhOH gives the tetrameric cubane [PhOSb(µ3-NCy)]4
(3). The analogous reaction of 2-pyOH (py = 2-pyridyl) gives the related Bi(III) cubane [pyOBi(µ3-NCy)]4
(4). The latter, which is a rare example of a structurally characterised Bi(III) imido compound, exhibits unusual molecular association of the tetrameric units in the solid state and fluxional behaviour in solution.
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