Novel (42 · 84)(43 · 63)2(46 · 63 · 86)2 topology network built up from the highly connective pyridine-2,4,6-tricarboxylate ligand

A new manganese polymer Mn3(ptc)2(H2O)4 (1) (H3ptc = Pyridine-2,4,6-tricarboxylic acid) has been solvothermally synthesized and characterized by single-crystal diffraction, IR, TGA and elemental analysis. Compound 1 crystallizes in the triclinic space group image and shows a fairly complicated structure, which should be attributed to the high connectivity of H3ptc ligand. Meanwhile, we defined a novel trinodal (42 · 84)(43 · 63)2(46 · 63 · 86)2 topology net, two types of Mn(II) ions in different chemical environment and ptc3− anion act as four-connected, four-connected and six-connected node, respectively. The magnetic measurement in the temperature range of 2–300 K displays weak antiferromagnetic coupling interaction between the Mn(II) ions.