Complexes of the formula Ni(L)X, where L=1,3-bis(2′-pyridylimino)isoindolinato and X=Cl, Br, N3, NCS, 2-Clpcyd, 4-Clpcyd, 2,3-Cl2pcyd,2,6-Cl2pcyd, 2,4,5-Cl3pcyd and 2,3,5,6-Cl4pcyd, have been synthesized and characterized by elemental analysis, and IR, 1H NMR and UVVis spectroscopies. A crystal structure determination of Ni(L)(2-Clpcyd) showed nickel in a distorted square planar coordination sphere of nitrogen donor atoms in which the phenylcyanamido ligand is coordinated to Ni(II) via the terminal nitrogen. The solvent coordination equilibria of Ni(L)(pcyd) complexes was also investigated and the results suggest that both electronic and steric factors play important roles in determining the stability of the solvated complex.

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Journal Inorganica Chimica Acta
Letcher, R.J, Zhang, W. (Weigang), Bensimon, C. (Corinne), & Crutchley, R. (1993). (1,3-Bis(2′-pyridylimino)isoindolinato)nickel(II) complexes of phenylcyanamido ligands: crystal structure, electronic absorption spectroscopy and solvent adduct studies. Inorganica Chimica Acta, 210(2), 183–191. doi:10.1016/S0020-1693(00)83326-5