Chloro( phenyl) glyoxime, a vicinal dioxime, and its Ni(II), Cu(II) and Co(II) complexes were prepared. XRD patterns of the complexes point to similar crystal structures. IR and elemental analysis data revealed the 1: 2 metal-ligand ratio in the complexes. The Co( II) complex is a dihydrate. Temperature dependence of electrical conductivity of the solid ligand and its complexes was measured in the temperature range 25-250 degreesC; it ranged between 10(-14)-10(-6) Omega(-1) cm(-1) and increased with rising temperature. The activation energies were between 0.61-0.80 eV. The Co( II) complex has lower electric conductivity than the Ni( II) and Cu( II) complexes. This difference in the conductivity has been attributed to differences in the stability of the complexes.