metal-organic compounds
Three cis nickel-dithiocyanate (SCN) complexes with different N,N'-bidentate bases have been prepared and their crystal structures determined: bis(2,2'-bipyridine-N,N')bis(thiocyan-ato-N)nickel(II), [Ni(SCN)2(C10H8N2)2], bis(1,10-phenanthroline-N,N')bis(thiocyanato-N)nickel(II), [Ni(SCN)2(C12H8N2)2], and bis(2,9-dimethyl-1,10-phenanthroline-N,N')bis(thiocyanato-N)nickel(II) monohydrate, [Ni(SCN)2(C12H8N2)2]·H2O. Distortions due to ligand size are discussed.