【Abstract】 The title complex [CoL2](OH)Cl·1.1DMF (1) was synthesized (where L is Indene[1,2-b]Quinoxalin-11-Alkone Thiosemicarbazone) and characterized by elemental analysis, MS and X-ray single crystal structural analysis. The crystal structure 1 belongs to monoclinic system with space group C2/c, a=2.236 5(2) nm, b=1.990 4(2) nm, c=1.850 0(1) nm, β=116.576(2)°, V=7.365 2(9) nm3, Z=8. Each Co(Ⅱ) atom lies at the centre of a distorted coordination octahedron, formed by two L tridentate chelating ligands. The structure of the ligand L is nearly a plane. CCDC: 297352.更多还原