Np. Nayak et al., A POLYMERIC NICKEL(II) THIOCYANATE COMPLEX OF N-(2-AMINOETHYL)-N-METHYL-1,2-ETHANEDIAMINE, Acta crystallographica. Section C, Crystal structure communications, 54, 1998, pp. 208-210
The structure of [Ni(medien)(NCS)(mu-SCN)](n) [medien is N-(2-aminoeth
yl)-N-methyl-1,2-ethanediamine, C5H15N3] is a polymeric chain with eac
h pair of neighbouring nickel(II) ions linked by one SCN-bridging liga
nd. The coordination polyhedron about the Ni-II atom is a distorted oc
tahedron consisting of three N atoms of the medien ligand coordinating
facially, one N atom of the non-bridging thiocyanate ligand, and one
N and one S atom of two bridging thiocyanate ligands. The five-membere
d chelate rings display envelope geometry.