trans-Bis(isothiocyanato)tetrakis(pyridin)kobalt(II)

Co(CsHsN)4(NCS)2, C22H20CoN652, M r = 491.5, monoclinic, C2/c, a = 12.461(6), b = 12.910(6),c= 16.509(8)A, fl= 118.60(5) °, V= 2331.8 A 3, Z = 4, D c = 1.399 Mg m -a, p(Mo Ka) = 0.95 mm-L Co is octahedrally coordinated to the N atoms of four pyridine and two trans-coordinated isothiocyanate ligands. The angle Co-N-CS is 155.9(4) ° .