Crystal Structure of a Centrosymmetric Trinuclear Cadmium(II) Complex Containing Metal Atoms in Two Different Coordination Environments

Abstract

The complex [Cd₃( pybet )₄Cl₆] ( pybet = C₅H₅N⁺CH₂COO^-) crystallizes in the triclinic space group Pī (No. 2), with Z = 1, a 8.3228(8), b 10.290(2), c 12.199(2)Ǻ, α 66.44(1), β 77.65(1), γ 71.59(1)°; structure was refined to R = 0.027 for 5242 observed MoKα data. In the centrosymmetric trinuclear molecule the metal atoms exhibit trans-octahedral Cd (1)O₄Cl₂ and tetrahedral Cd (2)O₂Cl₂ coordination geometries; the central Cd (1) atom is doubly bridged to each of the terminal Cd (2) atoms by a pair of pybet ligands which function in an uncommon syn-skew mode.