Some amine-thiocyanate complexes of nickel(II)

Abstract

The preparation and properties of Ni(l,3-pn)₂(NCS)₂, Ni(trien)(NCS)₂, Ni(tet a)(NCS)₂, Ni(tet b)(NCS)₂, Ni(dien)(NCS)₂, Ni(dpt)(NCS)₂, Ni(en)₂NCSClO₄, and Ni(trien)NCSClO₄ are described (1,3-pn = 1,3-diaminopropane, trien = triethylenetetramine, tet a and tet b are isomeric hexamethylcyclotetradecanes, dien = diethylenetriamine, dpt = dipropylenetriamine, en = ethylenediamine). The first four compounds are normal N-bonded dithiocyanato derivatives, the dien and dpt derivatives have structures with one N-bonded terminal, and one bridging thiocyanate ion, and the thiocyanate perchlorate compounds have structures with a bridging thiocyanate ion. Magnetic susceptibilities (all μ_eff c. 3.1 B.M.), infrared spectra (including that of N-deuterated Si(l,3-pn)₂(NCS)₂), reflectance spectra, and conductances in methanol and acetone are reported.