IUCr journals

Redetermination of the trigonal prismatic complex tris(cis-1,2-diphenylethylene-1,2-dithiolato)rhenium

Acta Cryst. (2006). C62, m464–m466 [doi.org/10.1107/S0108270106033336]

[Trigonal prismatic complex]The first structurally characterized example of trigonal prismatic coordination reported forty years ago, Re(S2C2Ph2)3, was redetermined from the same sample using modern CCD instrumentation. The results confirm the original determination, albeit with better agreements among bond distances and angles and without using a group refinement for the phenyl rings. A survey of related MS6 molecules reported over the years is included that assesses the degree of trigonal prismatic coordination using a designated dihedral angle for comparison.

R. Eisenberg and W.W. Brennessel