Reaction of a tripodal ligand, N,N＇,N＇＇-tris（3-pyridinyl） phosphoric trimide（TPPA） and CuBr_2·2H_2O result in the assembly of a new polymeric copper coordination polymer, which was characterized by single-crystal diffraction, infrared spectroscopy and elemental analysis. The polymer crystallizes in the triclinic system, space group P1 with a = 9.0964（5）, b = 10.2592, c = 10.5822（8） A, V = 933.01（9） A3, Z = 2, C_（30）H_（24）Br_4Cu_3N_（12）O_2P_2, M_r = 985.02, D_c = 1.753 g/cm3, F（000） = 4072 and μ（MoKα） = 0.746 mm^（-1）. The final R and w R are 0.0588 and 0.1329 for 4260 observed reflections with I 〉 2σ（I）. Cu（Ⅰ） is tetrahedrally coordinated and Cu（Ⅱ） center adopts square planar coordination geometry. Because of the flexibility of the TPPA ligands, the pyridyl rings rotate though a certain angle and three pyridyl rings on the same TPPA rotate by about 45° with respect to the central P=O groups. TPPA ligand acts as a tridentate ligand and is coordinated with three metal centers with its pyridyl donors to form a 2D-sheet like structure, and it is further connected by N-H···O and N-H···Br, resulting in a 3D network packing. Oxidation states of the metal center have been determined by bond valence sum calculation.
A new polymeric znic（II） coordination polymer, [Zn2（bptc）·（H2O）4]n·nC H3 OH 1, was synthesized by the hydrothermal reaction of Zn（NO3）2·6H2O with 1,1＇-biphenyl-2,2＇,6,6＇-tetracarboxylic acid（H4bptc） and structurally characterized by single-crystal diffraction, IR and elemental analysis. The polymer crystallizes in the orthorhombic system, space group Pnna with a = 13.411（1）, b = 16.418（2）, c = 9.178（7）, V = 2025.2（3） 3, Z = 4, C17H14O13Zn2, Mr = 557.06, Dc = 1.827 g/cm3, F（000） = 1120, μ（MoK α） = 2.439 mm-1. The final R and wR are 0.0548 and 0.1691 for 1279 observed reflections with I 2（I）. In this compound, the bptc4- anion adopts monodentate bridging coordination modes connecting the zinc（II） ions to form a 1D chain structure, which furnishes a 2D supramolecular architecture through hydrogen bonding interactions formed by carboxylic oxygen atoms of bpdc, oxygen atoms of crystalline methanol and water molecules. Complex 1 displays an emissive maximum at 435 nm in the solid state at room temperature.
