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 μeff 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.