Synthesis of Some Octahedral Nickel(II) Complexes of One Isomer of Isomeric Me8[14]anes: X-ray Structure of Diisothiocyanato(3,10-C-meso-3,5,7,7,10,12,14,14-octamethyl-1,4,8,11-tetraazacyclotetradecane, LC)nickel(II), [NiLC(NCS)2]

Abstract

One isomer, LC of the isomeric Me8[14]anes, LA, LB and LC; on reaction with Ni(NCS)2 produces a six coordinate octahedral diisothiocyanato complex, [NiLC(NCS)2]. This complex undergoes axial substitution reactions with the small ligands to yield corresponding monosubstituted derivatives having general formula [NiLC(NCS)X] whereas X = Cl, Br, I, NO2 or NO3. The complexes have been characterized on the basis of analytical, spectroscopic, magnetic and conductance data. The structure of [NiLC(NCS)2] (triclinic, space group P−1, α = 8.0421(17) A, β = 8.9085(18) A, χ = 9.687(2) A, α = 67.561(3) A, β = 82,896(4) A, ζ = 598.7(2) A3, Z = 2, Dc = 1.352 mg/m3, μ(Mo Kα) = 1.003 mm−1) was confirmed by X-ray crystallography.