Synthesis, Structure, and Magnetic Study of two Two-Dimensional 63Honeycomb-Shaped and 44Grid-Like Coordination Polymetic Networks Based on Hexa- and Dodecanuclear Manganese Cluster Units.

Two 2D coordination polymetic networks compounds of [Na3MnIII6(μ6-O)(thme)4(PhCO2)6(H2O)]·OH (1) and [NaMnIII4MnII8O2(thme)4(N3)(OAc)8(AcOH)2(CH3O)4] (2) with 1,1,1-tris(hydroxymethyl)-methane (H3thme) as the ligand have been synthesized and structurally characterized by X-ray diffraction, IR spectra, and elemental analyses, where the homovalence hexanuclear Mn cluster in compound 1and the mixed-valence dodecanuclear Mn cluster in compound 2acted respectively as network nodes in the formation of honeycomb-shaped and rhombic grid-like layer structures. In addition, magnetic studies of 1reveal that antiferromagnetically coupled paramagnetic cluster behavior is operative within the hexameric Mn6cluster and 2exhibits antiferromagnetic coupling interactions and interesting frequency dependent in-phase as well as out-of-phase susceptibility signals are observed, respectively. [ABSTRACT FROM AUTHOR]