Synthesis and 3D crystal structure of new Ni(II)-ion-pair complex

Abstract

The new Ni(II) ion-pair complex, [BzTPP][Ni(dto)2] [(dto)2- = dithiooxalate and (BzTPP)+= benzyltriphenylphosphonium] was synthesized and characterized by single crystal X-ray diffraction method. The crystal structure analysis indicates that complex crystallizes in the monoclinic space group P21/c and its asymmetric unit consists of discrete one [BzTPP]+ organic cation and one-half of [Ni(dto)2]2- complex anion. The nickel atom is four coordinate and square planar coordination geometry. In the crystal structure, the organic cations and inorganic anions are linked with the intermolecular C–H···O hydrogen bonds as well as C–H··· ? and ??? interactions which form 3D crystal structures and ensure the lattice stability.