Collect. Czech. Chem. Commun. 1997, 62, 57-61

The Structure of [6,6'-μ-S(1,7-C2B9H10)2-2-Co]-[PPh4]+

Jaromír Plešeka, Andreas Frankena and Roland Fröhlichb

a Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 250 68 Řež near Prague, Czech Republic
b Organisch-Chemisches Institut der Universität, 48149 Münster, Germany


Single crystal X-ray structure of monoatomically bridged [6,6'-μ-S(1,7-C2B9H10)2-2-Co]-[PPh4]+ is reported and selected bond lengths and angles are tabulated. A distinctly smaller dihedral angle (12.2°) between both pentagonal ligand planes than found earlier in the formally related symmetric analogue 8,8'-μ-MeOCOCH2S(1,2-C2B9H10)2-3-Co (16.5°) is discussed. This is the first reported X-ray structure of a monoatomically bridged cobaltacarborane with nonadjacent carbon atoms in deltahedral ligands.

Keywords: S-Bridged cobaltacarborane with nonadjacent C-atoms, structure; Inclination of ligand planes.