A new approach to divalent thio-azo ligands; Ni(dpesdt)2

The preparation of a new bis(2-pyridylethylsulfanyl)-1,3-dithiole-2-one (1) and the first example of a tetra-azo substituted bisdithiolene transition metal complex, Ni(dpesdt)2 (2) are reported. This complex crystallizes in two polymorphs, one is triclinic, and the other is monoclinic, P21/n space group.

Graphical abstractThe first example of a tetra-azo substituted bisdithiolene transition metal complex [Ni(dpesdt)2] has been synthesized and structurally characterized by cyclic voltammetry and X-ray diffraction methods. It crystallizes in two polymorphs, one in the triclinic space group P1¯ and one other in the monoclinic space group P21/n.Figure optionsDownload full-size imageDownload as PowerPoint slide