Crystal and molecular structure of tetraethyl-ammonium bis (stilbene 1,2-dithiolato) nickelate(III)

The crystals of the title compound are orthorhombic, space group Pca2l with the following parameters: a = 16.387(4), b = 7.507(2), c = 28.612(8) A°, V= 6343.8 A°3, Z = 4, Dx = 1.35 g cm-3, ℳ(MoK) = 0.753 mm-1, Final R = 0.11, Rw = 0.12 with 1.00/[σ2(Fo) + 0.0005 |F0|2] for 1073 unique redections [I> 3σ(I)]. The nickel atom has an approximate square planar configuration. The nitrogen atom of the cation exhibits a tetrahedral configuration. The anions are arranged along the a-axis at Z = 0.25 and 0.75 with the Nickel atoms nearly collinear. © by R. Oldenbourg Verlag