Surrounded by zinc: The reaction of [Mo(GaCp*)6] and Zn(CH3)2 zinc yields the exceptionally high-coordinate title compound (see picture; Mo red, Zn green, C gray). Quantum chemical analysis reveals a unique bonding situation best described as a perfectly sd5 hybridized molybdenum atom with 12 valence electrons engaged in MoZn bonding. Another six electrons are delocalized over the Zn cage, evoking only weak ZnZn interactions.
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Cadenbach et al. (2008) studied this question.
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