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Crystal structure of tetraphenylarsonium aquatetracyanonitridorhenate(V), (AsPh4)2 [ReN(H2O)(CN)4]·5H2O

Research paper by Walter Purcell, Izak M. Potgieter, Llewellyn J. Damoense, Johann G. Leipoldt

Indexed on: 01 Oct '92Published on: 01 Oct '92Published in: Transition Metal Chemistry



Abstract

The crystal structure of (AsPh4)2[ReN(H2O)(CN)4]·5H2O has been determined from three-dimensional X-ray diffraction data. The yellow crystals are monoclinic, space group P21/n with cell dimensionsa=15.482(1),b=19.950(2),c=16.999(1)Å and β=101.69(6)o,Z=4,Dexpt=1.48(1)g cm−3 andDcalc=1.52g cm−3. The anisotropic refinement of 7858 observed reflections converged toR=0.055. The [ReN(H2O)(CN)4]2− ion has a distorted octahedral geometry. Bond distances: Re≡N=1.639(8), Re−OH2=2.496(7) and Re−C(av)=2.11(1) Å. The rhenium atom is displaced by 0.35 Å out of the plane formed by the four carbon atoms of the cyano ligands towards the terminal nitrido ligand.