Hydrothermal synthesis and crystal structure of a novel 2-D polymeric manganese (II) complex with mixed ligands / Transit. Met. Chem.

A novel polymeric complex, [Mn(phen)(pdc)](infinity) ( phen 1,10- phenanthroline, H(2)pdc 2,5-pyridinedicarboxylic acid) has been synthesized from the hydrothermal reaction system of H2pdc, phen, MnO2, and H2O. [Mn(phen)(pdc)](infinity) is characteristic of an edge-sharing dinuclear Mn-II structure unit bridged by pdc, leading to a 2-D framework whose stacking is based on weak H-bond interaction. The temperature dependence of the magnetic susceptibility for [Mn(phen)( pdc)](infinity) indicates antiferromagnetic coupling [J= -2.76(4)cm(-1)] between the adjacent paramagnetic Mn-II ions. / A novel polymeric complex, [Mn(phen)(pdc)](infinity) ( phen 1,10- phenanthroline, H(2)pdc 2,5-pyridinedicarboxylic acid) has been synthesized from the hydrothermal reaction system of H2pdc, phen, MnO2, and H2O. [Mn(phen)(pdc)](infinity) is characteristic of an edge-sharing dinuclear Mn-II structure unit bridged by pdc, leading to a 2-D framework whose stacking is based on weak H-bond interaction. The temperature dependence of the magnetic susceptibility for [Mn(phen)( pdc)](infinity) indicates antiferromagnetic coupling [J= -2.76(4)cm(-1)] between the adjacent paramagnetic Mn-II ions.