NMR (1D and 2D) and X-ray crystallographic studies of Ni(II) complex with N-(2-mercaptophenyl)-4-methoxysalicylideneimine and triphenylphosphine

Mononuclear nickel(II) complex, viz. [Ni(L)(PPh3)] (where L is dianion of N-(2-mercaptophenyl)-4-methoxysalicylideneimine) has been synthesized and characterized by means of elemental analysis, electronic, IR and NMR [1H, 13C{1H} and 31P{1H}, DEPT, 1H–1H COSY, ge-HSQC, ge-HMBC] spectroscopic techniques. Structural analysis of the complex by single crystal X-ray crystallography indicated the presence of square planar coordination geometry (ONSP) about nickel. One of the phenyl rings of triphenylphosphine involve in CH⋯π interactions with H6b, H13 and H32 to form a three dimensional network which stabilizes the structure of complex.