First trinuclear paramagnetic transition metal complexes with redox active ligands derived from TTF: Co2M(PhCOO)(6)(TTF-CH=CHpy)(2)center dot 2CH(3)CN, M = Co-II, Mn-II

The first paramagnetic homo- and hetero-metallic trinuclear complexes with redox active ligands derived from TTF are synthesized, the central metal ion has an octahedral coordination sphere while the outer Co-II ions are in a distorted bipyramidal surrounding, bearing TTF-ligands, the magnetic properties show antiferromagnetic coupling leading to a magnetic ground state.