Abstract
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 1 and the mixed-valence dodecanuclear Mn cluster in compound 2 acted respectively as network nodes in the formation of honeycomb-shaped and rhombic grid-like layer structures. In addition, magnetic studies of 1 reveal that antiferromagnetically coupled paramagnetic cluster behavior is operative within the hexameric Mn6 cluster and 2 exhibits antiferromagnetic coupling interactions and interesting frequency dependent in-phase as well as out-of-phase susceptibility signals are observed, respectively.
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