Crystal structure of trinuclear mixed-valence CoIII-CoII-CoIII complex {CoIII(μ-Sal)2Mepn)(N3)(μ1,1-N3)}2CoII(H2O)2

Trinuclear mixed-valence Co(III)-Co(II)-Co(III) complex {Co-III(mu-Sal(2)MePn)(N-3)(mu(1,1)-N-3)}(2)Co-II(H2O)(2) (I) was synthesized by the reaction of Co(NO3)(2) center dot 6H(2)O with the Schiff base ligand H(2)Sal(2)MePn condensed from 2,2-dimethylpropylenediamine with salicylaldehyde and characterized by elemental analyses and FT-IR spectroscopy. The molecular structure of I has been determined from single-crystal X-ray diffraction analysis. In this structure, the N (3) (-) anions show both terminal and mu(1,1)-bridging modes. The terminal Co(III) centers exhibit uniform arrangements of the Schiff-base ligand and N (3) (-) anions.