Abstract
The title complex [Mn-2(phen)(4)(FCA)(2)](ClO4)(2) .H2O (1) (FCA = dianion of 3-ferrocenyl-2-crotonic acid, phen = 1,10-phenanthroline) has been prepared, and its structure determined by single crystal X-ray diffraction analysis. The structure consists of a dinuclear cation [Mn-2( phen)(4)(FCA)(2)](2+), non-coordinated perchlorate anions and a water molecule. The two Mn-II ions are separated by 4.374 Angstrom in the cation and are dicarboxylate-bridged by carboxylate ligands containing ferrocenyl units. Each FCA is bound to two Mn-II ions through carboxylate oxygens with the syn-anti bridging mode. The Mn-II ion is coordinated in an octahedral N4O2 geometry by two chelate phen ligands and two mu-carboxylate oxygen atoms. Electrochemical properties of (1) are discussed.