trans-dichlorotri(cyclohexyl)arsenic(V)

Article abstract of DOI:10.1107/S0108270197013334

The title molecule, [AsCl₂(C₆H₁₁)₃], has a distorted trigonal-bipyramidal geometry with three equatorial cyclohexyl groups and axial Cl atoms. The As-C distances [1.990(2), 1.988(2) and 1.981(3) A] differ slightly, and the equatorial angles C-As-C are 117.35 (10), 117.60(10) and 123.26(8)°. The angle subtended at arsenic by the axial Cl atoms is 178.60(2)°, but the chlorine separation distances [2.4957 (7) and 2.3029 (7) A] differ substantially. The As atom lies out of the plane of the equatorial C atoms, suggesting a contribution from the ionic structure, [As(cyclo-C₆H₁₁)₃]⁺.Cl^-.