Synthesis and Characterization of a Novel 3D Coordination Polymer Based on Cu（II） Cations and Mellitic Acid

A new mellitate complex [Cu3（μ2-mellitate）（μ2-H2O）（H2O）2·H2O]n 1 has been synthesized by the reaction of mellitic acid and Cu（CH3COO）2·H2O in the presence of base. Crystallographic data for 1： C12H8O16Cu3, Mr = 598.80, orthorhombic, Pbcn, a = 8.4378（6）, b = 10.0396（7）, c = 17.6799（12）A, V = 1497.70（18）A^3, Z = 4, De = 2.656 g/cm^3, μ = 4.327 mm^-1, F（000） = 1180, R = 0.0431 and wR = 0.0964 for 1075 observed reflections （I 〉 2σ（I））. X-ray crystal structural analysis revealed that the mellitate anions behave as the bridging ligands and link eight copper atoms repeatedly to form a novel three-dimensional metal-organic coordination polymer with two different rhombic tunnels in the solid-state structure.     

Synthesis,Structure and Luminescent Properties of [Zn(btzb)2Cl2]·2H2O[btzb=1,2-Bis(5-tetrazolyl)benzene]

The title compound[Zn(btzb)2Cl2]·2H2O(1·2H2O,btzb=1,2-bis(5-tetrazolyl)benzene)was synthesized in situ by the[2 3] cycloaddition reaction of phthalonitrile with NaN3 in water in the presence of ZnCl2 under refluxing conditions.1·2H2O crystallizes in the monoclinic system,space group P21/c with a=9.0119(18),b=7.5566(15),c=18.076(5)(A),β=114.67(2)°,V=1118.6(4)(A)3,Z=2,Dc=1.784 g/cm3 T=223(2)K,C16H16N16O2Cl2Zn,Mr=600.74,F(000)=608,μ(MoKα)=1.393 mm-1,S=1.081,R=0.0306 and wR=0.0669 for 1896 observed reflections with Ⅰ ＞2σ(Ⅰ).The Zn2 ion of 1 is coordinated by four N atoms from two btzb ligands and two Cl atoms,forming a distorted octahedral coordination geometry.A number of intermolecular hydrogen bonding interactions between molecules 1 and/or the solvated water molecules result in a 3D hydrogen-bonded structure.The luminescent property of 1·2H2O was also investigated.     

Synthesis and Crystal Structure of a 2D Cu Framework Constructed from Dinuclear Building Units

A novel 2D Cu coordination polymer [Cu4(pca)4(H2O)2(DMSO)2·2DMSO·2H2O]n(2, H2 pca = pyrazole-3-carboxylic acid) has been prepared by dissolving a dinuclear Cu complex Cu2(py)3(pca)2(H2O)·(H2O)(1) in DMSO solution and structurally characterized by X-ray diffraction. The polymer crystallizes in space group P1 with a = 9.538(3), b = 9.714(3), c = 10.765(3) A, α = 86.492(6), β = 84.007(7), γ = 82.592(6)o, Mr = 1079.04, V = 982.4(5) A3, Z = 1, Dc = 1.824 g/cm3, μ = 2.425 mm-1 and F(000) = 548. The final refinement gave R = 0.0785 and w R = 0.1940 for 2787 reflections with I 2σ(I). The structure of 2 consists of Cu4(pca)4(H2O)2(DMSO)2·2DMSO·2H2O units, which can be viewed as two dinuclear subunits of Cu2(pca)2(H2O)2 and Cu2(pca)2(DMSO)2 connected to each other alternately, with solvent DMSO and H2 O molecules around. The framework features a grid-like topology, with the walls of the grids composed of Cu4(pca)4 units, and the coordinated solvent molecules trapped in the grids.     

Hydrothermal Synthesis and Crystal Structure of [Cu(en)2(H2O)]2{PW11.5Cu0.5O40[Cu(en)2]}·2H2O

A transition metal substituted polyoxotungstate,[Cu(en)2(H2O)]2{PW11.5Cu0.5O40 [Cu(en)2]}·2H2O1 based on Keggin frameworks ,has been hydrothermally synthesized and charac-terized by IR,TGA and single-crystal X-ray structural analysis.It is interesting to find that the structure unit contains two different valence cations,namely,one[Cu(1)(en)2(H2O)] and one [Cu(2)(en)2(H2O)]2 .Data for the crystal:orthorhombic system,space group Pbca,a=21.585(2),b=20.695(2),c=26.137(3)(A),V=11675(2)(A)3,Z=8,Mr=3428.23,Dc=3.901 g/cm3,F(000)=12156,μ(MoKα)=23.932mm-1,the final R=0.0468 and wR=0.0969 for 6927 observed reflections(Ⅰ＞2σ(Ⅰ)).     

Synthesis, Structure and Characterization of [Cu(2,2'-bpy)2][{Cu(2,2'-bpy)2}2W12O40(H2)]·4H2O

An organic-inorganic compound [Cu(2,2'-bpy)2][{Cu(2,2'-bpy)2}2W12O4o(H2)]·4H2O (Mr = 4048.00) was prepared from the hydrothermal reaction of Na2WO4·2H2O, CuCl2·2H2O,2,2'-bipyridine (2,2'-bpy) and H2O at 160 ℃ for 4 days. The compound crystallizes in the monoclinic system, space group P21/n with a = 18.9196(8), b = 20.4212(8), c = 21.8129(9)(A), β=96.992(3)°, V= 8365.0(6) (A)3, Dc= 3.214 g/cm3, Z = 4,μ(MoKα) = 17.269 mm-1 and F(000) = 7324.Of the 119837 total reflections, 17315 were unique (Rint = 0.0489). The final R = 0.0385 and wR =0.0770 for 11142 observed reflections with I ＞ 2σ(I). Single-crystal X-ray diffraction reveals that the structure is composed of [{Cu(2,2'-bpy)2}2W12O40(H2)]2- anions, discrete [Cu(2,2'-bpy)2]2 cations and lattice water molecules, and the anion is made up of a {W12O40(H2)}6- α-Keggin core decorated with two {Cu(2,2'-bpy)2}2 groups through bridging oxygen atoms.     

Hydrothermal Synthesis,Crystal Structure and Properties of a Novel Polyoxometalate {[Cu~Ⅱ(1,10-phen)]_2[PMo~Ⅵ_(11)Mo~ⅤO_(40)]} [Cu~Ⅰ(C_8N_4H_6)(C_9H_6NO)(H_2O)]

A new pseudo three-dimensional framework structure of the title compound {[CuⅡ(1,10-phen)]2[PMoⅥ11MoⅤO40]}[CuⅠ(C8N4H6)(C9H6NO)(H2O)](1) has been prepared by the hydrothermal method for the first time and characterized by elemental analyses,X-ray single-crystal diffraction and IR spectra.1 consists of two building blocks,one {[CuⅡ(1,10-phen)]2[PMoⅥ11MoⅤO40]} and one [CuⅠ(C8N4H6)(C9H6NO)(H2O)] coordinated group.Singlecrystal X-ray diffraction revealed that 1 crystallizes in the monoclinic system,space group P2/c with a=13.498(4),b=12.890(3),c=21.465(8),β=97.314o,V=3704(2)3,Mr=2693.61,Z=2,Dc=2.415 Mg/m3,μ=2.915 mm-1,F(000)=2562,S=1.009,the final R=0.0583 and wR=0.1406 for 5129 observed reflections with I2σ(I).Furthermore,compound 1 shows strong fluorescent properties in the solid state at room temperature.The electrochemical behavior of 1 has also been studied by cyclic voltammograms.     

Synthesis, Structure and Characterization of [Cu(2,2''-bpy)2][{Cu(2,2''-bpy)2}2W12O40(H2)]·4H2O

An organic-inorganic compound [Cu(2,2'-bpy)2][{Cu(2,2'-bpy)2}2W12O4o(H2)]·4H2O (Mr = 4048.00) was prepared from the hydrothermal reaction of Na2WO4·2H2O, CuCl2·2H2O,2,2'-bipyridine (2,2'-bpy) and H2O at 160 ℃ for 4 days. The compound crystallizes in the monoclinic system, space group P21/n with a = 18.9196(8), b = 20.4212(8), c = 21.8129(9)(A), β=96.992(3)°, V= 8365.0(6) (A)3, Dc= 3.214 g/cm3, Z = 4,μ(MoKα) = 17.269 mm-1 and F(000) = 7324.Of the 119837 total reflections, 17315 were unique (Rint = 0.0489). The final R = 0.0385 and wR =0.0770 for 11142 observed reflections with I ＞ 2σ(I). Single-crystal X-ray diffraction reveals that the structure is composed of [{Cu(2,2'-bpy)2}2W12O40(H2)]2- anions, discrete [Cu(2,2'-bpy)2]2 cations and lattice water molecules, and the anion is made up of a {W12O40(H2)}6- α-Keggin core decorated with two {Cu(2,2'-bpy)2}2 groups through bridging oxygen atoms.     

Synthesis and Crystal Structure of [Cu3(dmpzm)4(μ-1,3-dca)2(dca)4]·2H2O (dmpzm = 1,1·-Methylenebis-(3,5-dimethyl-1H-pyrazole), dca = dicyanamide)

The title compound, [Cu3(dmpzm)4(μ-1,3-dca)2(dca)4]·2H2O (dmpzm = 1,1'-methyle- nebis(3,5-dimethyl-1H-pyrazole), dca = dicyanamide) 1·2H2O, was synthesized via the reaction of CuCl2·2H2O with dmpzm and Na(dca), and characterized by elemental analysis and IR spectra. 1·2H2O crystallizes in the monoclinic system, space group C2/m with a = 13.578(3), b = 16.769(3), c = 14.769(3)(A),β=104.10(3)°, V = 3261.4(11)(A)3, Z = 2, Dc = 1.466 g/cm3, T = 153(2) K, C56H68N34O2Cu3, Mr = 1440.09, F(000) = 1490, μ(MoKα) = 1.040 mm(1, S = 1.150, R = 0.0553 and wR = 0.1123 for 2744 observed reflections with I > 2σ(I). The central copper atom is chelated by two dmpzm ligands and coordinated by two bridging dca anions, forming a slightly distorted octahedral geometry. The two external copper atoms adopt a square-pyramidal coordination geometry, coor- dinated by one chelating dmpzm ligand and one bridging and two terminal dca anions. Two inter- molecular hydrogen bonding interactions result in the formation of a 2D (4,4) hydrogen-bonded network.     

Synthesis and Structure of a Ladder-like Co-crystal Cu~ICl with 3,5-Dipropyl-4-amino-1,2,4-triazole

Redox reaction of a mixture of CuCl2·2H2O, H3PO3 and dpatrz(3,5-dipropyl-4-amino-1,2,4-triazole) at room temperature yields one new compound, [Cu(Ⅰ)(μ2-dpatrz)2Cu(Ⅰ)Cl2], with two independent cis- and trans-propyl side chain molecules. Compound 1 crystallizes in monoclinic, space group P21/c with a = 7.474(1), b = 17.807(1), c = 18.851(1) , β = 108.32(1)o, V = 2381.7(2) 3, Z = 4, C16H32Cl2Cu2N8, Mr = 534.48, Dc = 1.491 g·cm-3, μ = 2.03 mm-1, F(000) = 1104, GOOF = 1.050, the final R = 0.0445 and w R = 0.1162 for 3162 observed reflections(Ⅰ 2δ(Ⅰ)). Compound 1 shows discrete dimeric structures(A and B) containing inversion centers and the Cu(Ⅰ) ions are coordinated in triangle geometries. The isomers are connected by N–H···Cl hydrogen bonds, chains with graph-set C(7) and rings R22(14) and C–H···π interactions into stair-step chains(Tapes A and B) running parallel to the [01–1] direction. The N–H···Cl hydrogen bonds result in chain and cyclic structures with graph-sets C22(17) and R34(18) linking tapes A and B to form two-dimensional networks along the [031] direction. Packing of crystal 1 is stabilized by rings R34(18) and weak C–H···Cl hydrogen bonds parallel to the [01–2] direction. Bond valence sum(BVS) and UV-Vis absorption spectra support the existence of Cu(Ⅰ) ions. Compound 1 exhibits extensive green blue phosphorescence in the solid state at room temperature.     

Synthesis and Crystal Structure of a New Three-dimensional Supramolecule of Copper(Ⅱ)Schiff Base Complex

A new three-dimensional supramolecule composed of copper-Schiff base complex,[Cu(naphdien)]Cl·H2O,where naphdien is Schiff base of 2-hydroxy-1-naphthaldehyde and diethyle-netriamine,has been synthesized and determined by single-crystal X-ray diffraction.It belongs to the monoclinic system,space group P21/c,with a=7.3490(15),b=7.0847(16),c=30.845(3)(A),β=95.33(3)°,V=1599.O(5)(A)3,Z=4,C15H20ClCuN3O2,Mr=373.33,Dc=1.551 g/cm3,μ=1.543mm-1,F(000)=772,R=0.0536 and wR=0.0927 for 2788 unique reflections with 1659 observed ones(I＞2σ(I)).In the crystal structure,mononuclear units[Cu(naphdien)]Cl·H2O are linked into a two-dimensional framework via strong hydrogen bonds,and extended into a three-dimensional supramolecular structure through π-π stacking interactions.     

Two Cobalt(Ⅱ) Complexes Derived from the Hydrolysis Product of Di-Schiff Base Ligand N,N'-Bis-(1-benzimidazo-2-ylethylidene)-ethane-1,2-diamine: Preparation,Characterization and Crystal Structure of the 6-Coordinate Species [CoL2]X·H2O (X = ClO4-,NO3-)

The reactions of Co(CIO4)2.6H2O and Co(NO3)2·6H2O with the di-Schiff base ligand N,N'-bis-(1-benzimidazo-2-yl-ethylidene)-ethane-1,2-diamine (LA) in ethanol have been investigated.The reactions of LA with excess amount of cobalt salts yield the six-coordinate complexes [CoL2](CIO4)2·H2O 1 and [CoL2](NO3)2·H2O 2 as isolatable products (L = N-(1-benzimidazo-2-yl-ethylidene)-ethane-1,2-diamine), where L is a tri-dentate mono-Schiff base ligand, resulting from the hydrolysis of the precursor di-Schiff base LA.Both complexes were characterized by X-ray crystallography.Crystal data for complex 1: monoclinic, space group P21/c, a = 11.9214(10), b = 23.5828(17), c = 14.0387(12)(A), β= 135.219[4]°,C22H30CI2CoN9O9,Mr = 680.37, V = 2780.1(4)(A)3, Z = 4, Dc = 1.625 g/cm3,μ(MoKa) = 0.876 mm-1, F(000) = 1404,the final R = 0.0725 and wR = 0.1530 for 5726 observed reflections (I＞2σ(I)).Crystal data for complex 2: monoclinic, space group P21/c, a = 18.2162(16), b = 10.0610(6), c = 18.593(2)(A),β=130.099(3)°, C22H30CoN10O7, Mr = 605.49, V = 2606.5(4)(A)3, Z = 4, Dc = 1.543 g/cm3,μ(MoKα)= 0.722 mm-1, F(000) = 1260, the final R = 0.0619 and wR = 0.1429 for 5194 observed reflections (I ＞ 2σ(I)).X-ray diffraction analysis reveals that each cobalt atom in the two complexes is chelated by six nitrogen atoms from two tridentate iigands L, exhibiting a slightly distorted octahedral coordination sphere.In both complexes, the strong hydrogen-bonding interactions between the lattice waters and N-H groups of the ligands result in 1D chains which are further connected by ClO4- (or NO3-) groups to form a 3D framework.In complex 2, the strong π-π interactions increase the stability of the structure.     

Polymeric Iodoplumbate Incorporating Copper Iodide Complex Cation Layer:Structure and Theoretical Study of a New Semi-conductive Hybrid:{[Cu(Ⅱ)(bipy)_2I][PbI_3](H_2O)_2}_n

A new iodoplumbate polymer incorporating copper iodide complex cation {[Cu(Ⅱ)(bipy)2I][PbI3](H2O)2}n 1(bipy = 2,2'-bipyridine) has been synthesized and structurally determined.It crystallizes in the triclinic system,space group P1 with a = 7.979(4),b = 14.538(11),c = 15.853(8),α = 110.77(2),β = 97.955(18),γ = 104.88(2)°,V = 1607.3(17)3,Z = 2,C20H16CuI4N4O2Pb,Mr = 1122.72,Dc = 2.320 g/cm3,F(000) = 1006,μ(MoKα) = 9.753,the final R = 0.0627 and wR = 0.1741 for 4846 observed reflections with Ⅰ 2σ(Ⅰ).Structural analysis indicates that 1 consists of 2-D {[Cu(Ⅱ)(bipy)2I]}nn+ cation layers(based on π-π interaction and hydrogen bonds) and [PbI3]nn-polyanions.The C-H···I hydrogen bonds between {[Cu(Ⅱ)(bipy)2I]}nn+ cation layers and [PbI3]nn-polyanions lead to the formation of an interesting 3-D network.Optical absorp-tion spectrum indicates that 1 is a semiconductor,which is further validated by DFT calculation.Its electronic structure is also discussed.     

Synthesis and Crystal Structure of the Binuclear Complex: [Cu2(phen)2(ip)(Hip)2]·4H2O

A binuclear complex [Cu2(phen)2(ip)(Hip)2]·4H2O has been synthesized by the reaction of Cu(CH3COO)2·H2O, phen(1,10-phenanthroline) and isophthalic acid (H2ip) under hydrothermal condition. Elemental analysis, IR spectra and X-ray single-crystal diffraction were carried out to determine the composition and crystal structure. Crystal data for this complex: monoclinic, space group C2/c, a = 19.214(3), b = 10.6973(14), c = 22.567(3) (A), β = 105.081(2)°,C24H19N2O8Cu, Mr= 526.95, Z = 8, F(000) = 2160, V= 4478.6(10)(A)3, Dc = 1.563 g/cm3, μ = 1.030mm-1, -24≤h≤16, -13 ≤k≤ 13, -28≤l≤28, R = 0.0369 and wR = 0.0819 for 4615 (Rint = 1.0357)independent reflections and 3290 observed ones (I＞ 2σ(Ⅰ)). Structural analysis shows that coordination geometry of Cu(Ⅱ) is a planar square, and the title complex exhibits a 2-D framework supramolecular structure by hydrogen bonds and π-π stacking interactions.     

Synthesis,Crystal Structure,and Magnetic and Water-induced Reversible Transformation Properties of {[Ni(IBG)(μ-H_2O)(H_2O)_2]·2H_2O}_n

A novel NiⅡ complex {[Ni(IBG)(μ-H2O)(H2O)2]·2H2O}n 1(H2IBG = isophthaloylbisglycine) has been synthesized and characterized by single-crystal X-ray diffraction,elemental analysis,IR spectra,and thermogravimetric analysis.It crystallizes in monoclinic,space group P2/c with a = 15.40(2),b = 6.960(10),c = 7.865(11) ,β = 90.32(3)o,V = 843(2) 3,Z = 2,C12H18NiN2O11,Mr = 424.99,Dc = 1.675 g/cm3,F(000) = 440,μ(MoKα) = 1.214 mm-1,the final R = 0.0514 and wR = 0.1247 for 1078 observed reflections with I 2σ(I).In the structure,each NiⅡcenter is situated in the center of a rather regular octahedron.Moreover,thermal stability has been studied and magnetic measurements show antiferromagnetic interactions for this complex.     

Synthesis and Crystal Structure of Bis（p—aminotoluene）—bis（dimethylglyoximato） Cobalt（Ⅲ） Perchlorate

The title compound (C22H32.5ClCoN6O8.25,Mr=607.42)crystallizes in the orthorhombic system,space group c222 1 with a=11.320(2),b=20.933(4),c=23.936(5)A,V=5672(2)A^3,Dc=1.423g/cm^3,Z=8,μ(MoKα）=0.754mm^-1,F(000)=2532,R=0.0512 and wR=0.1190,There are eight complex molecules [Co(C4H6N2O2)(C4H8N2O2)(C7H9N)2]ClO4.0.25H2O of C2 crystallographic symmetry in a unit cell,including two crystallographically independent molecules,in which different orientations of the MePhNH2 groups are found.Two MephNH2 groups are in trans position for molecule A,and cis for B.The central metal atom is in a distroted octahedral environment.The hydrogen bonds of O-H(oxime)…O and N-H(p-aminotoluene group)…O construct an one-dimensional chain along the c axis in the title compound.     

Synthesis and Structure Characterization of Aqua-（μ2-carbonato-O,O′）-（2,2′-bipyridyl）-copper（Ⅱ） Dihydrate

Under hydrothermal conditions the reaction of cis-aconitic acid with Cu2(OH)2CO3 and bipy (bipy = 2,2'-bipy) in H2O/DMF (3:2) afforded a neutral mononuclear compound [Cu- (bipy)((2-CO3)(H2O)](2H2O, which has been structurally characterized by single-crystal X-ray diffraction analysis. The crystal belongs to triclinic, space group Pī with a = 8.3950(5), b = 8.7974(5), c = 9.4496(3)（A。）, α = 98.270(3), β = 93.014(3), γ = 100.068(3)°, V = 677.83(6) （A。）3, Dc = 1.635 g/cm3, Z = 2, C11H14CuN2O6, Mr = 333.78, μ = 1.637 mm－1, λ(MoKα) = 0.71073 （A。）, F(000) = 342, the final R = 0.0616 and wR = 0.1273 for 1621 observed reflections with I > 2σ(I). The structure of the complex contains a distorted square pyramidal core with a bipy, a carbonate anion and a water molecule coordinating to a CuⅡ atom. The dihedral angle between the two planes composed of N(1)N(2)Cu(1) and O(1)O(3)Cu(1) is 21.73(8)°. The intermolecular hydrogen bonds (O…O) are observed in the crystal structure.     

One-dimensional Copper(Ⅱ) Complex Constructed with Nitrate Counter-anion as Bitopic Connector

Coordination polymer {[Cu(NPPCA)3(NO3)(H2O)]·NO3·H2O}n 1 ( NPPCA = N-(4′-nitrophenyl)-4-pyridinecarboxamide) has been synthesized by the reaction of NPPCA with copper(Ⅱ) nitrate in ethanol-water solution and characterized by X-ray diffraction. 1 crystallizes in the monoclinic space, group P21/n, a = 17.341(6)A, b = 6.744(2) (A), c = 34.555(12)(A), β =100.493(6)°, V = 3974(2) (A)3, Z = 4. Each copper(Ⅱ) ion has a distorted octahedral coordination geometry. Nitrate anion adopts the unusual coordination mode linking two adjacent copper(Ⅱ)ions to form a one-dimensional coordination polymer and these chains are further linked by noncovalent interactions.     

A New Two-dimensional Copper(Ⅱ)Complex with p-PhDTA Bridges

A new p-PhDTA bridged Cu(Ⅱ) complex [Cu2(p-PhDTA)(DMSO)2]·4DMSO (pPhDTA = p-phenylenediamine-N,N,N,N'-tetraacetic acid) has been synthesized and structurally characterized.The crystal belongs to orthorhombic, space group Pca21 with a = 19.572(4), b=19.552(4), c = 10.156(2)(A), C26H48N2O14Cu2S6, Mr = 932.10, V = 3886.4(13)(A)3, Z = 4, Dc = 1.593 g/cm3, F(000) = 1936, λ(MoKα) = 0.71073 (A),μ= 1.480, R = 0.0487 and wR = 0.1151 for 8464 observed reflections (I ＞2σ(I)).In the complex, the oxygen atoms of carboxylate of p-PhDTA connect the Cu atoms in a syn-anti type, giving one-dimensional chains which are further linked by the benzene groups of p-PhDTA to form a novel two-dimensional structure.     

Synthesis and Structural Characterization of One New Polyoxotungstate Connected via Potassium Cations with a Three-dimensional Framework: H6Na2K4(H2W12O42)Cl2·14H2O

One new polyoxotungstate complex H6Na2K4(H2W12O42)Cl2·14H2O 1 has been prepared in the beaker solution and characterized by elemental analysis and IR spectroscopy. Crystal data: H36Cl2K4W12Na2O56, Mr = 3411.77, monoclinic, space group P21/c, a = 11.5734(16), b = 14.3136(19), c = 15.459(2)(A), β = 105.601(2)°, V = 2466.5(6)(A)3, Z = 2, Dc = 4.594 g/cm3, F(000) = 3008, μ = 28.447 mm-1, R = 0.0574 and wR = 0.1239 (Ⅰ＞ 2σ(Ⅰ)). Single-crystal X-ray diffraction analysis results reveal that a three-dimensional architecture in the title compound is constructed from the H2W12O4210- units linked by potassium.     

Two New Cu(Ⅱ) Coordination Polymers Based on 2,5-Furandicarboxylic Acid and 2,2'-bipyridine:Synthesis and Crystal Structure

Two new Cu(Ⅱ) coordination polymers,[Cu(FDA)(BPY)(H2O)]n(1) and {[Cu(FDA)(BPY)(H2O)]·2H2O}n(2)(H2FDA = 2,5-furandicarboxylic acid,BPY = 2,2-bipyridine),have been synthesized and structurally characterized by single-crystal X-ray diffraction as well as elemental analysis and IR.Compound 1 crystallizes in monoclinic,space group P21/c,with a = 7.5915(15),b = 8.4050(17),c = 24.204(6) ,β = 99.05(3)°,V = 1525.1(6) 3,Dc = 1.706 g/cm3,C16H12CuN2O6,Mr = 391.82,F(000) = 796,μ(MoKα) = 1.470 mm–1,Z = 4,R = 0.0633 and wR = 0.1059 for 2389 observed reflections(I 2σ(I)),R = 0.0738,and wR = 0.1098 for all data.Complex 2 belongs to triclinic space group P1 with a = 8.8660(18),b = 8.9112(18),c = 12.525(3) ,α = 88.41(3),β = 69.38(3),γ = 66.95(3)°,V = 845.2(3) 3,Dc = 1.681 g/cm3,C16H16CuN2O8,Mr = 427.85,F(000) = 438,μ(MoKα) = 1.342 mm–1,Z = 2,R = 0.0290 and wR = 0.0690 for 2767 observed reflections(I 2σ(I)),R = 0.0329 and wR = 0.0706 for all data.Complexes 1 and 2 are both coordination polymers with one-dimensional chain structures bridged by the protonated FDA ligands,which are assembled into three-dimensional supramolecular structures through hydrogen bonding interactions and π-π packing interactions between the chains.