[1,2-Bis(dicyclohexylphosphanyl)-1,2-dicarba-closo-dodecaborane-2κ2P,P′]di-μ-chlorido-1:2κ4Cl:Cl-dichlorido-1κ2Cl-dimercury(II)

The title compound, [Hg2Cl4(C26H54B10P2)], was synthesized by the reaction of 1,2-bis(dicyclohexylphosphanyl)-1,2-dicarba-closo-dodecaborane with HgCl2. Both HgII atoms show a distorted tetrahedral coordination geometry, provided by the two bridging chloride anions and the P atoms of the diphosphanyl ligand for one metal atom, and by two bridging and two terminal chloride anions for the other. The five-membered HgP2C2 chelate ring assumes an envelope conformation, with the HgII atom displaced by 0.1650 (5) Å from the mean plane of the other four atoms (r.m.s. deviation = 0.002 Å). In the crystal, B—H...Cl interactions link the molecules, forming a supramolecular chain along the a-axis direction.

Abstract licence: CC BY

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