In this work, we present the synthetic pathway, a refined structural description, complete solid-state characterization and the magnetic properties of four new cobalt(II) compounds of formulas [Co(H2O)6][Co2(H2mpba)3]∙2H2O∙0.5dmso (1), [Co(H2O)6][Co2(H2mpba)3]∙3H2O∙0.5dpss (2),...