Two Co(Ⅱ) Complexes Constructed from 1-(3,5-Dicarboxybenzyl)-3,5-pyrazole Dicarboxylic Acid:Syntheses,Structures and Magnetic Properties

Two new complexes[Co_2(L)(4,4′-bip)(H_2O)_3]_n (1) and{[Co(L′)_2(phen)]·2H_2O)}_n (2)(H_4L=1-(3,5-dicarboxybenzyl)-3,5-pyrazole dicarboxylic acid,H_3L′=1-(3,5-dicarboxybenzyl)-3-pyrazole carboxylic acid,4,4′-bip=4,4′-bis(1-imidazolyl)biphenyl,phen=1,10-phenanthroline) were synthesized.Complexes 1 and 2have been characterized by IR spectrography,X-ray single-crystal diffraction,elemental analysis and thermogravimetry.1 crystallizes in monoclinic system,space group P2_1/c.Complex 2 crystallizes in monoclinic system,space group I2/a.It is remarkable that in situ hydrothermal decarboxylation was observed during preparing complex 2.In addition,magnetic analysis indicates that antiferromagnetic interaction exists among Co(Ⅱ) ions in complexes 1 and 2.     

Hydrothermal Synthesis and Crystal Structure of a Znic(Ⅱ) Coordination Polymer Assembled by 4-Sulfophthalate and 4,4'-Bipyridine

A new organometallic coordinate polymer {[Zn2(4-sphth)2(4,4'-bpy)4(H2O)4][Zn(4,4'-bpy)2(H2O)4]}n·n[(4,4'-bpy)(H2O)4](4-sphth=4-sulfophthalic acid,4,4'-bpy = 4,4'-bipyridine) 1 has been hydrothermally synthesized and characterized by elemental analysis,IR,fluorescence spectrum and single-crystal X-ray diffraction.The complex crystallizes in monoclinic,space group C2/c with a=18.8659(13),b=23.0861(13),c=22.5449(14),β=107.4120(10)o,V=9369.3(10)3,Mr=1981.86,Dc=1.405 g/cm3,μ(MoKα)=0.891 mm-1,F(000)=4100,Z=4,the final R=0.0644 and wR=0.1615 for 5984 observed reflections(I 2σ(I)).Furthermore,compound 1 shows blue photoluminescent property at room temperature.     

两个由4,4’-联吡啶双氧化物桥连的基于八氰钨（Ⅳ）酸盐的三维异金属化合物的合成、晶体结构及磁学性质

通过[HN（n-C4H9）3]3[W^V（CN）8]·4H2O,4,4＇-bipyridinedioxide（4,4＇-dpdo）和MnCl2·4H2O或CuCl2·2H2O的反应得到两个新的基于八氰金属酸盐的三维异金属化合物,{[Mn2（4,4＇-dpdo）（H2O）4][W^IV（CN）8]}·6H2O（1）和{[Cu2（4,4＇-dpdo）（H2O）][W（CN）8]}·CH3OH·H2O（2）.其中,化合物1属正交晶系,空间群为P21212,晶胞参数为：a=10.397（2）A,b=11.321（2）A,c=12.295（3）A,Z=2;化合物2则属于单斜晶系,空间群为P21/c,晶胞参数为：a=13.038（3）A,b=13.784（3）A,c=13.225（3）A,β=93.44（3）°,Z=4.在化合物1中,每个[W^Ⅳ（CN）8]^4-单元呈反四棱柱几何构型,并通过桥连CN^-离子与四个Mn2双核单元相连而形成波浪状的-W-Mn2-W-Mn2-交替层;层层之间又进一步通过与Mn离子配位的4,4′-dpdo配体桥连形成一个三维开放骨架结构.在化合物2中,每个[W^Ⅳ（CN）8]^4-离子依旧采取反四棱柱几何构型,它通过七个CN^-离子分别与七个铜离子键连形成笼状波浪形的层;层层再进一步通过4,4′-dpdo配体桥连形成一个三维网络结构.由于4,4′-dpdo配体的较长刚性桥连作用,使得化合物1-2的开放骨架结构中形成许多被H2O或甲醇溶剂分子占据的空穴.值得一提的是,化合物1中,4,4′-dpdo配体表现出一种μ-4,4,4′,4′配位模式;据我们所知,这种配位模式虽然以前曾被理论预测过,但却是第一次被实验证实.磁性研究表明：化合物1表现出Mn^Ⅱ离子之间的反铁磁耦合作用,而化合物2则体现了Cu^Ⅱ离子之间的弱铁磁耦合相互作用.     

Synthesis and Crystal Structure of a One-dimensional Silver(Ⅰ) Coordination Polymer with 4,4'-Bipyridine

The title compound,{[Ag2(bipy)2(H2O2]·pydc·2H2O}n(bipy=4,4'-bipyridine,pydc=pyridine-3,5-dicarboxylate),has been synthesized by the reaction of Ag2O with pydc and bipy in CH3OH solution.It crystallizes in the monoclinic system,space group C2/c with a=21.419(8),b=7.515(3),c=18.070(7)(A),β=108.273(6)°,Mr=765.27,V=2761.9(17)(A)3,Z=4,Dc=1.840 g/cm3,F(000)=1528,μ=1.478 mm-1,the final R=0.0307 and wR=0.0681.The structure determined demonstrated that the Ag(Ⅰ)is three-coordinated by two nitrogen atoms from bipy and one water molecule,forming a one-dimensional coordination polymer[Ag2(bipy)2(H2O)2]n2n ,which is further linked to generate a two-dimensional layer structure via Ag…Ag attractions.     

hree Inorganic-organic Composite Polyoxotungstates:Syntheses, Characterization and Structures of [Cu(2,2'-bpy)2]5[α-PW11.5Cu0.5O40]·2H2O,[Co(2,2'-bpy)2(N3)2]4H3[α-PW12O40]·3H2O and [Cu(2,2'-bpy)2(4,4'-bpy)]2[α-GeW12O40]·4H2O

Three new inorganic-organic composite polyoxotungstates [Cu(2,2'- bpy)2]5[α- PW11.5Cu0.5O40]·2H2O 1, [Co(2,2'-bp3)2(N3)2]4H3[α-PW12O40]·3H2O 2 and [Cu(2,2'-bpy)2(4,4'- bpy)]2[α-GeW12O40].4H2O 3 (2,2'-bpy = 2,2'-bipyridine, 4,4'-bpy = 4,4'-bipyridine) have been hydrothermally synthesized and structurally characterized. 1 crystallizes in the orthorhombie space group Pna21 with α = 27.847(3), b = 21.597(2), c = 20.1179(19) A, V = 12099(2) A3, Z = 4, GOF= 1.038, R = 0.0427 and wR = 0.1035; 2 belongs to the triclinic space group P1 with a= 12.31150(10), b = 16.1954(4), c = 19.36290(10) A, α = 99.366(11), β=105.168(8),γ = 111.836(8)°, V = 3309.98(9) A3, Z = 1, GOF = 1.024, R = 0.0739 and wR = 0.2216; and 3 crystallizes in the monoclinic space group P21/n with a = 12.858(4), b = 20.943(6), c = 15.598(5) A, β = 102.338(5)°, V = 4103(2) A3, Z = 2, GOF = 1.026, R = 0.0557 and wR = 0.1316. The common structural features of 1～3 are that their molecular structures all consist of a saturated a-Keggin polyoxoanion and several discrete metal-organic moieties. Intriguingly, 2 and 3 are composed of metal-organic coordination moieties with two mixed ligands.     

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.     

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 and characterization of a new open-framework zinc phosphite (4,4′-(C5H4N)2(CH2)3)·[Zn3(HPO3)4]

Employing 4,4-trimethylenedipyridine as a template,a new two-dimensional zinc phosphite (4,4-(C5H4N)2(CH2)3)· [Zn3(HPO3)4 ] has been prepared at room temperature and characterized by single-crystal X-ray diffraction,FTIR,elemental analysis,powder X-ray diffraction,and thermogravimetric analysis.The compound crystallizes in the monoclinic space group P2 1 /c,with cell parameters,a=9.3309(19),b=14.798(3),c=33.637(7),β=91.11(3),V=4643.8(16) nm 3 and Z=4.The connectivity of the ZnO4 tetrahedra and HPO 3 pseudo pyramids results in infinite corner-sharing 4-membered ring chains as second building units which are further linked by Zn O P bonds to form a 2-D layer that with interesting 8-membered ring channels along the [100] direction.The diprotonated 4,4-trimethylenedipyridine molecules sit in the middle of the layers along the [100] direction and interact with the framework via hydrogen bonds.     

配位聚合物[Mn(4,4′-bpy)_(1.5)(H_2O)_3](ClO_4)·(4,4′-bpy)(L)·H_2O的水热合成和晶体结构(英文)

The title compound, [Mn(4,4'-bpy)1.5(H2O)3](ClO4)·(4,4'-bpy)(L)·H2O(1), where L=2,4,6-trimethylbenzoic acid, was synthesized and its crystal structure was determined by X-ray diffraction analysis. The crystal is of triclinic, space group P1 with a=2.929 9(6) nm, b=1.036 4(2) nm, c=8.222 0(1) nm, α=105.300(2)°, β=97.495(2)°, γ=91.118(2)°, V=1.884 0(4) nm3, Z=2, Mr=780.10, Dc=1.375 g·cm-3, μ=0.483 mm-1, F(000)=812, R=0.055 4, wR=0.135 2. The Mn atoms are octahedrally coordinated by three N atoms of three 4,4'-bipyridine ligands and three O atoms of water. The complex shows a one-dimensional chain structure bridged by water and 4,4'-bipyridine molecules. CCDC: 615707.     

Synthesis and crystal structure of heteronuclear La(Ⅲ)-Cu(Ⅱ) complex {[LaCu_2(NTA)_2(4,4'-bpy)(H_2O)_3]NO_3·5H_2O}_n

A novel La(Ⅲ)-Cu(Ⅱ)heterometallic coordination polymer {[LaCu2(NTA)2(4,4'-bpy)(H2O)3]NO3 5H2O}n,where H3NTA denotes nitrilotriacetic acid and 4,4'-bpy denotes 4,4'-bipyridine,was synthesized and characterized by IR spectrum,elemental analysis and X-ray diffraction.The complex crystallizes in the triclnic space group PT with cell parameters a=1.33710(10)nm,b=1.44530(10)nm,c=1.0949(2)nm,α=71.905(7),β=74.327(7),γ=64.427(9),V=1.7912(4)nm3 and Z=2.It consists of heterometallic units,in which each La(Ⅲ)ion is coordinated in a distorted mono-capped square antiprism by three oxygen atoms from water molecules and six carboxyl oxygen atoms from five NTA3-ions,and each Cu(Ⅱ)ion is coordinated by one nitrogen atom from 4,4'-bpy and one nitrogen atom,three oxygen atoms from NTA3-.In the title complex,La(Ⅲ)ions and Cu(Ⅱ)ions are connected by the heterometallic bridging of NTA3-,constructing a two-dimensional network structure along the [110].And it is extended into an infinite three-dimensional network struc     

Two Pillared-layer Co(Ⅱ) Metalorganic Frameworks Displaying Pore Modulation by Rodlike Ligands

Two novel compounds, {[Co2(epda)2(4,4-bpy)(H2O)2]·3H2O}n1 and {[Co2(epda)2(bpe)(H2O)2]3H2O}n2(H2epda=5-ethyl-pyridine-2,3-dicarboxylic acid, 4,4’-bpy=4,4’-bipyridine and bpe=1,2-di(4-pyridyl)ethylene) were solvothermally synthesized and characterized by elemental analysis, IR spectroscopy, therm ogravimetric analysis (TGA), and singlecrystal X-ray diffraction. Complex 1 is of monoclinic system, space group P21/c with a=13.344(5), b=14.724(5), c=8.267(3), β=105.840(4)°, V=1562.5(10)3, Dc=1.480 g/cm3, Mr=375.19, Z=4, F(000)=712, μ=1.121 mm-1, the final R=0.0512 and wR=0.1260 for 2890 observed reflections with I>2σ(I). 2 belongs to the monoclinic system, space group P21/c with a=14.224(4), b=14.726(4), c=8.287(2), β=99.696(4)°, V=1711.1(9)3 , Dc=1.402g/cm3, Mr=388.21, Z=4, F(000)=740, μ=1.027 mm-1 , the final R=0.0354 and wR=0.0862 for 12237 observed reflections with I>2σ(I). Both complexes present intimately related structures featuring infinite Co-carboxylate layers of [CoⅡ(epda)(H2O)]n pillared by 4,4’-bpy (or bpe) molecule to produce the microporous frameworks, unambiguously indicating that pore dimensions of the framework are regulated by the N,N’-donor pillars.     

Hydrothermal Synthesis,Crystal Structure and Characterization of a New Keggin Polyoxometalate {[Ag~I(4,4’-bipy)]_3[PW_(12)O_(40)]}·(4,4’-bipy)

A novel polyoxometalate {[AgI(4,4'-bipy)]3[PW12O40]}·(4,4'-bipy)·4H2O 1 has been synthesized hydrothermally and characterized by elemental analysis, IR and single-crystal X-ray diffraction. The crystal of 1 belongs to the triclinic system, space group P1 with a = 11.3710(17), b = 12.0701(16), c = 13.1061(12) , α = 112.838(3), β = 94.545(6), γ = 99.526(4)°, V = 1614.4(4) 3, Mr = 3825.40, Z = 1, Dc = 3.935, μ = 22.289mm-1, F(000) = 1692, the final R = 0.0507 and wR = 0.1054. X-ray diffraction analysis reveals that the molecular structure of 1 consists of three coordinated cations [AgI(4,4'-bipy)]+, a polyanion unit [PW12O40]3-, and a discrete 4,4′-bipy molecule. Significantly, there exist two crystallographically independent silver(I) centers in 1 and all [AgI(4,4'-bipy)]+ cations are linked with each other to form a one-dimensional Ag-4,4'-bipy polymer chain. The neighboring polymer chains are further interconnected to form a 3D framework by the covalent effect of silver atoms and terminal oxygen atoms of the polyanion. The electrochemical behaviors of 1 have also been studied in detail by cyclic voltammograms.     

Synthesis and Crystal Structure of a One-dimensional Silver(I) Coordination Polymer with 4,4'-Bipyridine

The title compound, {[Ag2(bipy)2(H2O)2]·pydc·2H2O}n (bipy=4,4'-bipyridine, pydc= pyridine-3,5-dicarboxylate), has been synthesized by the reaction of Ag2O with pydc and bipy in CH3OH solution. It crystallizes in the monoclinic system, space group C2/c with a=21.419(8), b=7.515(3), c=18.070(7), β=108.273(6)°, Mr=765.27, V=2761.9(17)3, Z=4, Dc=1.840 g/cm3, F(000)= 1528, μ=1.478 mm-1, the final R=0.0307 and wR=0.0681. The structure determined demonstrated that the Ag(I) is three-coordinated by two nitrogen atoms from bipy and one water molecule, forming a one-dimensional coordination polymer [Ag2(bipy)2(H2O)2]n2n+, which is further linked to generate a two-dimensional layer structure via Ag…Ag attractions.     

Two Amine-tethered Imidazolium NHC Ni(Ⅱ) Complexes: Synthesis,Structure and Catalytic Activity

Nickel(Ⅱ) complexes Ni(L1)2(1) and Ni(L2)2·CH3CN·H2O(2)(L1Cl = 2-(3-benzyl-2,3-dihydroimidazlo-1-yl)-N-(pyridin-2-yl)acetamide, chloride salt, L2Cl = 2-(3-naphthalene-2-ylmethyl)-2,3-dihydro-imidazlo-1-yl)-N-phenylacetamide, chloride salt) with amide-functionalized imidazolium NHC ligand were synthesized and determined by single-crystal X-ray diffraction. Complex 1 crystallizes in the monoclinic system, space group P21/c with a = 9.2561(19), b = 15.138(3), c = 20.750(4) , β = 90.216(3)°, V = 2907.3(10) 3 and Z = 4. Complex 2 crystallizes in the orthorhombic system, space group Pbca with a = 15.5469(16), b = 15.3521(15), c = 31.177(3) , V = 7441.2(13) 3 and Z = 8. They are stable in the air and formed via intermolecular weak interactions, including C–H···π contacts and C–H···O hydrogen bonds. Complex 1 was applied in Suzuki coupling reaction through the investigation of reaction conditions under the optimal choice conditions: 80 ℃, K3PO4, 3% mol catalysts, 6% mol PPh3 and toluene as solvent system could afford 96% yield in 5 h.     

Synthesis,Crystal Structure and Water-induced Reversible Crystal-to-amorphous Transformation Property of [{Ni(IBG)(4,4'-bipy)(H_2O)_2}·3H_2O]_n

A novel NiII complex [{Ni(IBG)(4,4'-bipy)(H2O)2}·3H2O]n 1 (H2IBG = isophthaloylbisglycine and 4,4'-bipy = 4,4'-bipyridine) has been synthesized and characterized by singlecrystal X-ray diffraction, elemental analysis, IR spectra and thermogravimetric analysis. It crystallizes in monoclinic, space group P2/c with a = 15.5420(7), b = 22.4344(1), c = 8.3455(5), β = 101.538(3)o, V = 2670.1(7)3, Z = 4, C22H32N4NiO13, Mr = 619.23, Dc = 1.443 g/cm3, F(000) = 1296.0, μ(MoKα) = 0.750 mm-1, the final R = 0.0570 and wR = 0.1445 for 2296 observed reflections with I 2σ(I). In the structure, the NiII metal center is coordinated in an octahedral environment arranged by two water molecules, two carboxylate oxygen atoms and two nitrogen atoms from two 4,4'-bipy ligands. Thermal decomposition and powder X-ray diffraction results indicate that the transformation from the crystal form, [{Ni(IBG)(4,4'-bipy)(H2O)2}·3H2O]n, to the amorphous powder, Ni(IBG)(4,4'-bipy)(H2O)2, is reversible, so the latter form may be utilized as an absorbing agent for water and water vapor.     

Synthesis and Crystal Structure of [Cd(NBA)(μ_3-OH)(4,4′-bipy)_(1/2)]_n

A new cadmium polymer [Cd(NBA)(μ3-OH)(4,4′-bipy)1/2]n 1 (NBA = m-nitrobenzoic acid and 4,4′-bipy = 4,4-bipyridine) has been synthesized by hydrothermal reaction. Its structure was determined by single-crystal X-ray diffraction method, and characterized by elemental analysis and IR spectrum. The crystal is of monoclinic, space group C2/c, with a = 15.6912(9), b = 25.9394(15), c = 6.7332(4) ′, β = 114.7700(10)°, V = 2488.4(3) 3, C12H9CdN2O5, Mr = 373.61, Z = 8, Dc = 1.995 g/cm3, μ = 1.776 mm-1, F(000) = 1464, R = 0.0411 and wR = 0.1128 for 2130 observed reflections (I > 2σ(I)). X-ray diffraction studies reveal that the compound features a layered structure, in which 4,4′-bipy ligands bridge Z type of double chains [Cd(μ3-OH)]n and NBA ligands locate at the two sides of the layer. The π-π interactions between the benzene rings of NBA ligands of two adjacent layers lead to the 3D framework.     

Polynuclear Silver(Ⅰ) Complexes with Phosphorus Ligands and 4,4'-Bipyridine:Synthesis,Structural Characterization and Spectroscopic Properties

Two novel silver(I) complexes {[Ag(OTf)(PPh3)(4,4'-bipy)]}∞(1) and {[Ag2-(OTf)2(dppb)3](CH3CN)4}∞(2)(OTf = trifluoromethanesulfonate, PPh3 = triphenylphophine, 4,4'-bipy = 4,4'-bipyridine, dppb = bis(diphenylphosphino)butane) have been synthesized and characterized by IR, single-crystal X-ray diffraction, fluorescence spectrum and 1H NMR spectroscopy. Complex 1 crystallizes in orthorhombic, space group Pna21 with a = 19.259(2), b = 9.85070(12), c = 16.3827(17) ?, V = 3108.0(5) ?3, C29H23F3N2O3 PSAg, Mr = 675.39, Z = 4, Dc = 1.443 g/cm3, F(000) = 1360, μ = 0.816 mm-1, the final R = 0.0675 and w R = 0.1722 for 3662 observed reflections(I 2σ(I)). Complex 2 crystallizes in triclinic, space group P1 with a = 12.9370(11), b = 13.5261(13), c = 16.4539(15) ?, α = 106.7120(10), β = 97.3830(10), γ = 113.027(2)?, V = 2441.2(4)?3, C94H96F6N4O6P6S2Ag2, Mr = 1957.43, Z = 1, Dc = 1.331 g/cm3, F(000) = 1006, μ = 0.605 mm-1, the final R = 0.0717 and w R = 0.1795 for 5128 observed reflections(I 2σ(I)). Complex 1 is of zigzag chain structure, in which each Ag atom is coordinated by one OTf- anion, two N atoms from two 4,4'-bipy molecules and one P atom from PPh3 ligand. In 2, the central Ag atom is coordinated with one OTf- anion and three P atoms from three dppb ligands, which leads to the formation of a zigzag ring-bridge-ring chain with each ring consisting of two Ag atoms and two dppb ligands.     

Synthesis,Structure and Luminescent Property of a New Zn(Ⅱ) Coordination Polymer Based on 1,3,5-Benzenetricarboxylate and 4,4'-Bipyridine Ligands

A new Zn(II) coordination polymer [Zn3(BTC)2(4,4'-bpy)(CO)2]n(1, H3 BTC =1,3,5-benzenetricarboxylic acid, 4,4'-bpy = 4,4'-bipyridine) has been prepared through urothermal reaction of zinc nitrate hexahydrate with 1,3,5-benzenetricarboxylic acid and 4,4'-bipyridine, and characterized by elemental analysis, IR spectroscopy, TGA and powder XRD, and its crystal structure was determined by single-crystal X-ray diffraction analysis. The title compound crystallizes in the monoclinic system, space group C2/c, with a = 10.262(3), b = 18.838(5), c =15.083(4) A, β = 99.203(4)o, V = 2878.3(14) A3, C30H14Zn3N2O14, Mr = 822.54, Z = 4, Dc = 1.898g/cm3, μ = 2.561 mm-1, F(000) = 1640, R = 0.0363 and w R = 0.0932 for 2828 observed reflections(I 2σ(I)). X-ray analysis shows that the asymmetric unit of the title compound contains two crystallographically unique Zn(II) atoms which are connected by BTC3- ligands and 4,4'-bpy coligands to form a 3D framework with 1D channels. The solid luminescence of ligand and the title complex was also studied at room temperature.     

Synthesis,Structure,Electrochemistry and Fluorescence Properties of a One-dimensional Coordination Polymer {[Cd[μ-(4,4′-dps)]_2(H_2O)_2]·(4-abs)_2(H_2O)_2}_n

A new cadmium(II) compound, {[Cd[μ-(4,4'-dps)]2(H2O)2]·(4-abs)2(H2O)2}n 1 (4,4'-dps = 4,4'-dipyridylsulfide, 4-abs = deprotonated 4-amino benzenesulfonic acid), has been synthesized and structurally characterized. It belongs to the orthorhombic system, space group Pbcn with a = 19.950(3), b = 10.6381(13), c = 18.055(2) , V = 3831.8(8) 3, Z = 4, C32H36CdN6O10S4, Mr = 905.31, F(000) = 1848, μ = 0.850 mm-1, Dc = 1.569 Mg/m3 , the final R = 0.0238 and wR = 0.0589 for 3080 observed reflections with I > 2σ(I). Complex 1 is a one-dimensional linear chain coordination polymer and the repeat unit is comprised of doubly charged cadmium complex cation, uncoordinated 4-aminobenzene sulfonate anions and water molecules. The cadmium(II) ion adopts a six-coordinate distorted octahedral geometry. Complex 1 is stabilized and linked into a three-dimensional layered structure through intermolecular O–H···O and N–H···O hydrogen bonds together with electrostatic force. The cyclic voltammograms and fluorescence spectrum of 1 were also measured. It shows one irreversible redox process and emits a very strong and sharp fluorescent band at about 341 nm.     

Synthesis,Crystal Structure,and Topology Analysis of One Novel Interpenetrated 2D Cobalt Coordination Polymer, {[Co(HTCB)(4,4'-btb)]·H_2O}_n

One novel cobalt coordination polymer, {[Co(HTCB)(4,4'-btb)]·H2O}n(1, H3TCB= 1,3,5-tris(4-carboxyphenyl)benzene, 4,4'-btb = 4,4'-bis(1,2,4-triazol-3-yl)biphenyl), has been synthesized and characterized by elemental analysis, IR, powder X-ray diffraction(PXRD), and thermogravimetric(TG) analyses. X-ray diffraction analysis reveals that complex 1 is a 2D 2-fold interpenetrated {44,62}-sql [Co(HTCB)(4,4'-btb)] sheet based on the 1D [Co(HTCB)]n chains and1 D [Co(4,4'-btb)]n chains. The crystal of 1 crystallizes in triclinic, space group P 1 with a =9.529(12), b = 13.914(16), c = 14.906(17), V = 1903(4) 3, Z = 2, C45H34N6CoO7, Mr = 829.71,Dc = 1.448 g/cm3, F(000) = 858 and μ(MoKα) = 0.514 mm-1. The final R = 0.0655 and wR = 0.1136 for 6603 observed reflections with I 2σ(I) and R = 0.1136 and wR = 0.1747 for all data.