Articulo que describe la síntesis y caracterización de un polímero de coordinación de níquel(II) derivado de ligantes beta-oxoditioester.Bis-[methyl-1-hydroxy-1-cyclopentene-2-dithiocarboxylate-O,S]nickel(II) 1 was prepared starting from methyl 2-hydroxycyclopent- 1-encarbodithioate ligand (CPDT) and Ni(II), and catena-[(2-4,4-Bipyril)-bis-(methyl-2-hydroxy-1-cyclopentene-2- dithiocarboxylate-O,S)]nickel(ΙΙ) 2 was prepared in good yields from 1 plus 4,4-bipyridyl (bpy) by shish-kebab methodology. The structure of 1 was confirmed by FTIR, elemental analysis, 1H NMR, UV–vis in chloroform solution and in solid, XPS, and PXRD. Compound 2 was characterized by FTIR, elemental analysis, UV–vis in chloroform solution, and in solid, XPS, PXRD, ESR, and solid state magnetization measurements. The structure of the polymer was established mostly by PXRD, ESR, and magnetizationSIEA-UAEMex 3576/201