Mn(II) Based Coordination Polymer Involving 1,2,4,5-Benzenetetraboxylic Acid and 4,4-Bis(imidazol-1-ylmethyl)biphenyl: Synthetic, Structure and Magnetic Property

A novel Mn(II) coordination polymer (CP), [Mn(BBA)(0.5)(BIYB)](n) (1), was gained by the 1,2,4,5-benzenetetracarboxylic acid (H(4)BBA), 4,4-bis(imidazol-1-ylmethyl)biphenyl (BIYB), and Mn(CH3COO)(2)center dot 4H(2)O under hydrothermal reaction. CP 1 was characterized and structurally determined by elemental analyses, PXRD, IR spectra, thermal behaviors, and X-ray single-crystal diffraction. The framework structure of 1 shows a novel (2,5,6)-connected 3D network with a Schlafli symbol of (4(3).6(6).8)(2) (4(6).6(9))(6)(2). It crystallizes in triclinic system, space group P (1) over bar, with a = 7.5898(5), b = 9.8201(6), c = 14.1307(9) angstrom, alpha = 97.5850(10), beta= 99.6810(10), gamma = 111.6580(10)degrees, V = 943.01(10) angstrom(3), Z = 2, C23H15MnN4O4, M-r = 466.33, D-c = 1.462 g/cm(3), F(000) = 476, S = 1.082, R = 0.0361 and wR= 0.1008. The magnetic property of CP 1 was investigated. The weak antiferromagnetic interactions are observed between the Mn(II) ions.