Redetermination of the trigonal prismatic complex tris(cis-1,2-diphenylethylene-1,2-dithiolato)rhenium
The first structurally characterized example of trigonal prismatic coordination reported forty years ago, Re(S2
, 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