Synthesis and crystal structure of a solvated CoIII complex with 2-hydroxy-3-methoxybenzaldehyde thiosemicarbazone ligands

Abstract

The title CoIII complex, bis[bis(2-hydroxy-3-methoxybenzaldehyde thiosemicarbazonato)cobalt(III)] dithionate–dimethylformamide–methanol (1/4/3), [Co(C9H10N3O2S)2]2(S2O6)·4C3H7NO·3CH3OH, with monodeprotonated 2-hydroxy-3-methoxybenzaldehyde thiosemicarbazone as ligands crystallizes in the space group P\overline{1}. The asymmetric unit consists of two mononuclear [CoL 2]+ cations, one dithionate anion (S2O6)2− as counter-anion and seven solvate molecules (four dimethylmethanamide and three methanol). Each CoIII ion has a moderately distorted octahedral S2N2O2 geometry. In the crystal, the components are linked by numerous N—H...O and O—H...O contacts.