S. Belanger et al., fac-tricarbonylchlorobis(pyridine-N)rhenium and fac-tricarbonylchlorobis(4,4 '-bipyridine-N)rhenium, ACT CRYST C, 54, 1998, pp. 1596-1600
Structural analyses for the title compounds, (OC-6-32)-tricarbonylchlorobis
(pyridine-N)rhenium(I), [ReCl(C5H5N)(2)(CO)(3)], and (OC-6-32)-tricarbonylc
hlorobis-(4,4'-bipyridine-N)rhenium(I), [ReCl(C10H8N2)(2)(CO)(3)], show tha
t both complexes have the expected fac-octahedral geometry. The bipyridine
complex has local C-2 symmetry, with the rotation axis bisecting the N-Re-N
' and OC-Re-CO angles. In contrast with closely related tetrameric assembli
es which crystallize as porous channel-containing structures, the title com
pounds form dense crystals which are packed in a herring-bone fashion.