Summary
The light purple crystals of (4,4′-dipyridinium) [ReO(NCS)(CN)4] crystallize in the monoclinic space group P21/m witha=6.615(1),b=16.043(1),c=8.405(1) Å,β=93.20(1)°,z=2. The anisotropic refinement of the 1770 observed reflections converged to R=0.041.
The [ReO(NCS)(CN)4]2− ion has a distorted octahedral geometry. The rhenium atom is displaced by 0.30 Å out of the plane formed by the four carbon atoms towards the terminal oxo ligand. Bond distances: Re=0 =1.67(1), Re−N=2.12(1) and Re−Cav=2.11(1)Å. The thiocyanate ion is nitrogen bonded to the rhenium atom.
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Purcell, W., Roodt, A., Basson, S.S. et al. The crystal structure of 4,4′-dipyridinium tetracyanooxothiocyanatorhenate(V). Transition Met Chem 14, 369–370 (1989). https://doi.org/10.1007/BF01032512
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DOI: https://doi.org/10.1007/BF01032512