Synthesis and Crystal Structure of a New Lanthanum（Ⅲ） 4-Cyanobenzoate Complex

A new dinuclear La（Ⅲ） complex [La2（4-cba）4[H（4-cba）2]2（phen）2（H2O）4] （4-Hcba = 4-cyanobenzoic acid and phen = 1,10-phenanthroline） 1 has been synthesized by solvothermal reaction in an ethanol/water mixed solution at 100 ℃ and structurally characterized by singlecrystal X-ray diffraction. Crystallographic data： C88H58La2N12O20, Mr = 1881.28, triclinic P1, a = 7.518（3）, b = 17.033（6）, c = 17.551（6）A, α = 115.333（4）, β = 92.9910（10）, γ = 99.366（5）°, V = 1985.3（12）A^3, Z = 1, Dc = 1.574 g/cm^3, F（000） = 944 μ = 1.145 mm^–1, the final R = 0.0281 and wR = 0.0686 for 6708 reflections with Ⅰ 〉 2σ（I）. In 1, two nine-coordinated La（Ⅲ） ions are connected by two 4-cba ligands in a syn-syn bidentate coordination mode, and the other six 4-cba ligands terminate the La（Ⅲ） ions, resulting in an isolated dinuclear structure. Two different types of intramolecular hydrogen bonds, asymmetrical O-H…O and symmetrical O…H…O, exist in the crystal. The title complex molecules are connected through hydrogen bonds and weak π-π stacking interactions to generate a 2-D layered network. The thermogravimetric analysis of 1 has also been discussed.     

One-dimensional Supramolecular Chain Based on a Dinuclear Terbium(Ⅲ) 4-Cyanobenzoate Complex

A new dinuclear Tb(III) 4-cyanobenzoate complex [Tb2(4-cba)6(phen)2] (4-Hcba = 4-cyanobenzoic acid and phen = 1,10-phenanthroline) 1 has been synthesized by solvothermal reac- tion in an ethanol/water mixed solution at 100 ℃ and structurally characterized by single-crystal X-ray diffraction. Crystallographic data: C72H40N10O12Tb2, Mr = 1554.98, triclinic P1, a = 9.903(3), b = 11.769(8), c = 15.078(8) A, α = 111.42(12), β = 96.37(19), γ = 101.24(14)°, V = 1572(1) A3, Z = 1, Dc = 1.642 g/cm3, F(000) = 768 μ = 2.305 mm–1, the final R = 0.0205 and wR = 0.0543 for 5479 reflections with I > 2σ(I). Structural analysis shows that 1 displays an isolated dinuclear structure. Two eight-coordinated Tb(III) ions are bridged by four 4-cba ligands in the syn-syn bidentate coordination mode, and two other 4-cba ligands chelate these two Tb(III) ions. The title complex molecules are connected through π-π stacking interactions to generate a one-dimensional supra- molecular chain. The characteristic infrared spectra, luminescent properties and thermogravimetric analyses have also been discussed.     

Synthesis and Crystal Structure of a New Lanthanum(Ⅲ) 4-Cyanobenzoate Complex

A new dinuclear La(Ⅲ) complex [La2(4-cba)4[H(4-cba)2]2(phen)2(H2O)4] (4-Hcba = 4-cyanobenzoic acid and phen = 1,10-phenanthroline) 1 has been synthesized by solvothermal reaction in an ethanol/water mixed solution at 100 ℃ and structurally characterized by single- crystal X-ray diffraction. Crystallographic data: C88H58La2N12O20, Mr = 1881.28, triclinic P(1), a = 7.518(3), b = 17.033(6), c = 17.551(6)(A), α = 115.333(4), β = 92.9910(10), γ = 99.366(5)°, V = 1985.3(12) (A)3, Z = 1, Dc = 1.574 g/cm3, F(000) = 944 μ = 1.145 mm-1, the final R = 0.0281 and wR = 0.0686 for 6708 reflections with Ⅰ ＞2σ(Ⅰ). In 1, two nine-coordinated La(Ⅲ) ions are connected by two 4-cba ligands in a syn-syn bidentate coordination mode, and the other six 4-cba ligands terminate the La(Ⅲ) ions, resulting in an isolated dinuclear structure. Two different types of intramolecular hydrogen bonds, asymmetrical O-H…O and symmetrical O…H…O, exist in the crystal. The title complex molecules are connected through hydrogen bonds and weak π-πstacking interactions to generate a 2-D layered network. The thermogravimetric analysis of 1 has also been discussed.     

Synthesis and Crystal Structure of a New Lanthanum(III) 4-Cyanobenzoate Complex

A new dinuclear La(III) complex [La2(4-cba)4[H(4-cba)2]2(phen)2(H2O)4] (4-Hcba = 4-cyanobenzoic acid and phen = 1,10-phenanthroline) 1 has been synthesized by solvothermal reaction in an ethanol/water mixed solution at 100 ℃ and structurally characterized by single- crystal X-ray diffraction. Crystallographic data: C88H58La2N12O20, Mr = 1881.28, triclinic P1, a = 7.518(3), b = 17.033(6), c = 17.551(6), α = 115.333(4), β = 92.9910(10), γ = 99.366(5)°, V = 1985.3(12)3, Z = 1, Dc = 1.574 g/cm3, F(000) = 944 μ = 1.145 mm–1, the final R = 0.0281 and wR = 0.0686 for 6708 reflections with I > 2σ(I). In 1, two nine-coordinated La(III) ions are connected by two 4-cba ligands in a syn-syn bidentate coordination mode, and the other six 4-cba ligands terminate the La(III) ions, resulting in an isolated dinuclear structure. Two different types of intramolecular hydrogen bonds, asymmetrical O-H…O and symmetrical O…H…O, exist in the crystal. The title complex molecules are connected through hydrogen bonds and weak π-π stacking interactions to generate a 2-D layered network. The thermogravimetric analysis of 1 has also been discussed.     

Structural Studies and Photoluminescence of a Novel Mercury（Ⅱ） Complex Based on a Tris[4-（1-pyrazolyl）-phenyl]amine

A novel iodine-bridged mercury（Ⅱ） complex [Hg（L）（μ-I）（I）]2 was isolated by a reaction between HgI2 and the organic ligand tris[4-（1-pyrazolyl）phenyl]amine L, and the complex and ligand were both characterized by FT-IR spectroscopy, ^1H NMR and elemental analysis. The complex crystallizes in monoclinic space group P21/c with a = 9.579（5）, b = 27.331 （5）, c = 11.268（5） А, β= 105.624（5）°, Z = 2, Dc = 2.099 g·cm^-3 and μ= 7.620 mm^-1. The title complex C54H42Hg2I4N14 is a diplex bridged dinuclear complex consisting of two Hg（Ⅱ） ions, two ligands, two bridging I-anions, and two terminal I-anions. Universal hydrogen bonds in the complex with the partners of neighboring molecule have generated a supramolecular arrangement. Solid-state emission of the ligand and its complex have been investigated at room temperature.     

配合物[Tb(p-ClBA)_3(phen)]_2的结构和性能(英文)

Terbium p-chlorobenzoate complex with 1,10-phenanthroline, [Tb( p-ClBA)_3phen]_2 (1) has been obtained in the ethanol solution, where p-ClBA=p-chlorobenzoate and phen=1,10-phenanthroline. It crystallizes in the triclinic system, space group P1, a=1.008 1(2) nm, b=1.185 7(2) nm, c=1.431 1(3) nm, α=110.826(4)°, β=96.436(4)°, γ=101.737(4)°, Z=2. The two Tb(Ⅲ) ions are linked by four carboxylate groups through their bidentate bridging modes, forming a dimeric unit with crystallographic inversion center. Each terbium ion has an eight-coordinate geometry with four of the coordination sites occupied by four oxygen atoms from the four bridging carboxylates, respectively, two oxygen atoms from bidentate carboxylate, and the remaining positions occupied by two nitrogen atoms from a 1,10-phenanthroline molecule. The Tb(Ⅲ) ion adopt a distorted square antiprism coordination geometry. The excitation and luminescence data observed at room temperature show that the title complex emits very intensive green fluorescence under ultraviolet light. The result of thermal analysis indicates the complex [Tb(p-ClBA)_3phen]_2 is quite stable to heat. CCDC: 221921.     

Syntheses, Crystal Structures and Theoretical Calculation of Two Transition Metal Dinuclear Complexes

Two transition metal dinuclear complexes of [Mn2（OOCC6H4SSC6H4COO）- （Phen）2（H20）]n 1 and [CuE（OOCC6H4S）2（Phen）2] 2 were hydrothermally synthesized by the reaction of equivalent metal dichloride with 2,2＇-dithiobis（benzoic acid） （HE-DTBB）. Structure analysis indicates that each Mn2＋ ion in I is coordinated by one chelate phen ligand, one bridging water molecule and three DTBB ligands forming Mn2＋ dinuclear units which are further linked into one-dimensional chain by DTBB ligand. Under similar reaction conditions, the 2,2＇-dithio- his（benzoic acid） ligand undergoes thiol reduction to form 2-mercaptobenzoic （H-2-MBA） in 2 where two Cu2＋ ions are coordinated by phen and MBA ligands only constructing a dinuclear unit.     

Urothermal Synthesis and Crystal Structure of a Zn（Ⅱ） Coordination Polymer with a 3-D Supramolecular Structure

A new metal-organic coordination polymer [Zn(hfipbb)(e-urea)]n(1,H2hfipbb = 4,4'-(hexafluoroisopropylidene)bis(benzoic acid),e-urea = ethylene urea) has been urothermally synthesized and characterized by elemental analysis and single-crystal X-ray diffraction.The title complex crystallizes in monoclinic,space group P21/c with a = 13.302(4),b = 10.981(3),c = 13.804(4) ,β = 93.587(5)°,V = 2012.3(10) 3,C20H14N2O5F6Zn,Mr = 541.72,Z = 4,Dc = 0.447 g/cm3, = 0.328 mm-1,F(000) = 272,R = 0.0340 and wR = 0.1107 for 4528 observed reflections(I >2σ(I)).In the structure of compound 1,two Zn(Ⅱ) ions are bridged by two carboxylate groups from two hfipbb ligands to form a dinuclear unit,and each dinuclear Zn(Ⅱ) unit is linked with its two adjacent dinuclear units through four hfipbb ligands into an infinite one-dimensional double-chain.The interesting structural feature of compound 1 is that the one-D double-chains are self-interconnected into a three-D supramolecular structure through hydrogen bonds between the coordinated e-urea molecules and carboxylate oxygen atoms(N1 and O2,N2 and O4).     

Trinuclear and Dinuclear Manganese Complexes of 2/4-Formylbenzoic Acid Oxime Ligands： Syntheses and Crystal Structures

Two manganese complexes, [Mn3（2-cba）6（phen）2] 1 （2-cba = 2-cyanobenzoic acid, phe11 = 1,10-phenanthroline） and [MnE（4-fbaO）E（phen）4]（PF6）E.EHEO 2 （4-fbao = 4-formylbenzoic acid oxime）, have been synthesized by the reaction of 2-formylbenzoic acid oxime （2-fbao, HELl） or 4-formylbenzoic acid oxime （4-fbao, HELE） with phen and manganese acetate in ethanol or methanol solution. A translation from the oximino （-CHN=OH） of HELl to cyano （-C-N） was found in the formation of complex 1 at room temperature. The complexes were structurally determined by single-crystal X-ray diffraction. The crystal of compound I belongs to monoclinic, space group C2/c, with a = 17.983（6）, b = 23.364（7）, c =14.589（5） A, β = 92.401（5）° V = 6124（3） A^3, Z = 4, C72H40Mn3N10O12, Mr= 1401.96, Dc = 1.521 g/cm^3, F（000） = 2852.0, Rint = 0.0372, T= 293（2） K,μ = 0.686 mm^-1, the final R = 0.0644 and wR = 0.1813 for 5803 observed reflections with I 〉 2δ（I）. The crystal of compound 2 is of monoclinic system, space group P21/n, with a = 13.050（4）, b = 20.577（5）, c = 13.323（4）A,β = 113.578（3）°, V = 3227.2（14）A3, Z = 2, C64H48F12Mn2N10O8P2, Mr = 1484.94, Dc = 1.528 g/cm^3, F（000） = 1508.0, Rint= 0.0295, T= 293（2） K,μ = 0.539 mm^-1, the final R = 0.0629 and wR = 0.1789 for 5298 observed reflections with I 〉 2σ（I）. Compounds 1 and 2 are linear trinuclear and dinuclear manganese complexes respectively, which are both bridged by carboxylate groups of the ligands.     

Synthesis and Crystal Structure of a New Cadmium（ Ⅱ ） Polymer with One-dimensional Chain Structure： [Cd（5-hip）（phen）]n·nH2O （5-hip = 5-Hydroxyisophthalate,phen = 1,10-Phenanthroline）

A new metal-organic coordination polymer [Cd（5-hip）（phen）]n·nH2O 1 has been hydro- ermally synthesized and characterized by elemental analysis, IR, TG and single-crystal X-ray diffraction. The crystal of the complex crystallizes in monoclinic, space group P2/n with a = 8.8071（17）, b =12.386（2）, c = 16.981（3） A, β = 100.182（2）°, V = 1823.2（6） A^3, Mr=. 490.73, Dc =1.788 g/cm^3,μ（MoKa） = 1.240 mm^-1, F（000） = 976, Z= 4, the final R = 0.0458 and wR = 0.1373 for 2864 observed reflections （I 〉 2σ（I））. The Cd atoms are coordinated by two N atoms from the phen ligands and four O atoms from 5-hydroxyisophthalate ligands in a highly distorted octahedral geometry.     

Preparation, Crystal Structure and Enthalpy Change of Formation of the Reaction in Liquid Phase of a New Three- Dimensional Mixed-Ligand Holmium（Ⅲ）Coordination Polymer Based on Strong π-π Stacking Interactions

A new three-dimensional coordination polymer, [Ho（5-nip）（phen）（NO3）（DMF）] （5-nip=5-nitroisophthalic acid and phen=1,10-phenanthroline）, was prepared and characterized by single crystal X-ray diffraction, elemental analysis, IR spectrum and DTG-DSC techniques. The results show that the title complex crystallizes in space group P2/m with a= 1.0906（3） nm, b =1.2804 （3） nm, c= 1.6987（4） nm, β=91.400（5）°, Z=4, Dc= 1.931 Mg/m^3, F（000）= 1352. Each Ho（Ⅲ） ion is nine-coordinated by one chelating bidentate and two monodentate bridging carboxylate groups, one chelating bidentate NO3 anion, one DMF molecule and one 1,10-phenanthroline molecule. The complex is constructed with one-dimensional ribbons featuring dinuclear units and the one-dimensional ribbons are further assembled into two-dimensional networks by strong π-π stacking interactions with the distance of 0.327 nm, then the networks are arranged into three-dimensional structure according to ABAB fashion. The complex exhibits high stability up to 600 ℃. Its enthalpy change of formation of the reaction in liquid-phase in solvent DMF was measured using an RD496-Ⅲ type microcalorimeter with a value of （-11.016±0.184） kJ·mol^-1.     

Hydrothermal Synthesis and Crystal Structure of a Novel Dinuclear Co（ Ⅱ ） Complex： [Co2（2,2＇-bpy）2（μ-L）e（L）2（μ-H2O）] （HL = 4-Chlorobenzoic Acid）

ABSTRACT A new 4-chlorobenzoic acid bridge Co（Ⅱ ） complex [[Co2（2,2＇-bpy）2（μ-L）e（L）2（μ-H2O）] （HL = 4-chlorobenzoic acid） has been obtained by hydrothermal synthesis, and X-ray single-crystal diffraction analysis shows that it crystallizes in the monoclinic system, space group C2/c with a = 22.537（5）, b = 16.212（3）, c = 15.306（3） A, β= 124.37（3）°, V= 4616.1（16）A3, Mr = 1070.45, Dc = 1.540 g/cm3, Z = 4, p = 1.012 mm-1, F（000） = 2176, the final R = 0.0338 and wR= 0.0810. The title complex is composed of dinuclear [Co2（2,2＇-bpy）2（μ-L）2（L）2（μ-HaO）] molecules. Each Co（Ⅱ ） atom is coordinated by two nitrogen atoms from one 2,2’-bipyridine ligand, three oxygen atoms from three 4-chlorobenzoic ions and another oxygen atom from one water molecule. The two Co（Ⅱ） atoms are connected by two 4-chlorobenzoic ions and one bridged water molecule. The dinuclear molecules are interlinked by hydrogen bond and π-π stacking interactions into a three-dimensional supramolecular network.     

间氯苯甲酸构筑的双核铽(Ⅲ)配合物的水热合成、晶体结构及荧光性质(英文)

<正>The complex[Tb_2(ClC_6H_4COO)_6(2,2'-bipy)_2]·(ClC_6H_4COOH)·(H_2O)with m-chlorobenzoic acid and 2,2'-bipy -ridine as ligands has been synthesized by means of hydrothermal way.Crystal data for this complex are as follows: monoclinic,space group P1,a=1.143 9(4) nm,6=1.211 6(4) nm,c=1.419 9(5) nm,α= 103.600(6)°,β=95.382(3)°,γ= 99.506(4)°,V=1.8684(10)nm~3,D_c=1.692 g·cm~(-3),Z=2,μ(Mo Kα)=2.236 mm~(-1),F(000)=943,final discrepancy factors R_1=0.052 0,wR_2=0.118 6.In the crystal,two neighboring Tb(Ⅲ) ions are bridged by four m-chlorobenzoic acid anions,and their end positions coordinate with one 2,2'-bipyridine molecule and one m-chlorobenzoic acid anions, respectively,giving a binuclear cage structure,of which the spacing between Tb(Ⅲ)…Tb(Ⅲ) is 0.408 1 nm.Each Tb(Ⅲ) ion coordinates with two nitrogen atoms and six oxygen atoms,giving an eight-coordinated distorted square antiprism geometry.The luminescent property of the complex is also studied.     

Synthesis and Crystal Structure of a Manganese（Ⅱ） Complex with 2-（4′-Chlorine- benzoyl）-benzoic Acid and 1,10-Phenanthroline

A new metal-organic complex Mn2（cbba）4（phen）2 （Hcbba = 2-（4＇-chlorine-benzoyl）- benzoic acid, phen = 1,10-phenanthroline） 1 has been hydrotherrnally synthesized and structurally characterized by single-crystal X-ray diffraction, elemental analyses and IR spectroscopy. The compound crystallizes in orthorhombic, space group Pbcn with α = 12.154（5）, b = 18.166（7）, c = 31.197（13） A, V = 6887（5） A^3, C80H48Cl4Mn2N4O12, Mr= 1508.90, Dc = 1.455 g/cm^3, μ（MoKα） = 0.591 mm^-1, F（000） = 3080, Z = 4, the final R = 0.0408 and wR = 0.0873 for 4033 observed reflections （I 〉 2σ（I））. In the crystal structure, the manganese atom is six-coordinated with four carboxylate oxygen atoms from three different cbba ligands and two nitrogen atoms from phen ligands, showing a distorted octahedral geometry. Furthermore, it exhibits a 3D supramolecular network through π-π interactions.     

Hydrothermal Synthesis, Crystal Structure and Magnetic Property of a Novel Pentanuclear Copper(Ⅱ) Complex: [Cu5(SIP)2(HSIP)2(H2O)18](H2O)5

The pentanuclear complex, [Cu5(SIP)2(HSIP)2(H2O)18](H2O)5 (H3SIP=5-sulfoi-sophthalic acid), has been synthesized by the hydrothermal reaction of CuCl2 with NaH2SIP at 160 ℃, and characterized by single-crystal X-ray diffraction and IR spectrum. The crystal of the complex crystallizes in a trielinic system, space group P1, with a = 7.0018(5), b = 11.9725(8), c = 19.0424(13) A, α = 78.8540(10), β = 85.1710(10),γ = 83.6080(10)~, V = 1553.24(19) A3, Z = 1, C32H60O51S4Cu5, Mr= 1706.74, Dc= 1.825 g/cm3,μ = 1.937 mm-1, F(000) = 869, the final R = 0.0709 and wR = 0.1503 for 4235 observed reflections with I > 2σ(I). The five Cu2+ ions are connected by two symmetry-related tridentate SIP3- ligands and charge-balanced by two monodentate HSIP2- ligands, giving a discrete pentanuclear structure. The pentanuclear copper molecules are linked by hydrogen bonds to form a three-dimensional supramolecular structure. The temperature-dependent magnetic susceptibility data revealed weak ferromagnetic magnetic interactions between the Cu2+ ions.     

Synthesis and Crystal Structure of a Lanthanum（Ⅲ） Complex with Chelidamic Acid

A new lanthanum complex, （H3O）2[La（C7H3NO5）2（H2O）212.3（H2O） or （HaO）E[La（HChel）2（HEO）E]2.3（H2O） 1 （H3Chel = 4-hydroxypyridine-2,6-dicarboxylic（chelidamic） acid）, has been prepared by the hydrothermal reaction, and its crystal structure was determined based on single-crystal diffraction data. Compound I crystallizes in triclinic, space group Pi with a = 9.6939（19）, b = 10.176（2）, c = 11.502（2）A, α = 111.52（3）, β = 93.74（3）, γ = 103.33（3）°, V = 1013.0（3）A3, Dc = 1.912 g/cm3, Z = 1, Mr = 1166.40, p = 2.188 mm-1, 2（MoKa） = 0.71073 A and F（000） = 574. The final R = 0.0342 and wR = 0.0737 for 4080 observed reflections with I 〉 2σ（I）, and R = 0.0429 and wR = 0.0772 for all data. Compound 1 contains two lanthanum ions, four chelidamic acid ligands, four coordinated water molecules, two hydroniums, and three discrete water molecules. The LaⅢ atom is ten-coordinated by four oxygen and two nitrogen atoms from two tridentate chelating chelidamic acid ligands, two carboxylic oxygen atoms from an adjacent chelidamic acid ligand and two coordinated water molecules, leading to a distorted dodecahedral geometry. A three-dimensional network is formed by H-bonds.     

Synthesis and Crystal Structure of a New Cu（Ⅱ） Dithiocarbamate Complex CuI（prdtc）（phen）

A new mononuclear Cu（Ⅱ） dithiocarbamate complex CuI（prdtc）（phen） 1 （prdtc = N-pyrrolidinyldithiocarbamate, phen = 1,10-phenanthroline） was synthesized and characterized by elemental analysis, IR spectrum, and single-crystal X-ray diffraction. The crystal belongs to the monoclinic system, space group P21/c with a = 8.7110（9）, b = 14.7143（14）, c = 14.8507（15） A, β = 109.721（6）°, V = 1791.9（3） A3, Z = 4, Dc = 1.916 g/cm3, CI7H16CulN3S2, Mr = 516.89, λ（MoKa） = 0.71073A,μ = 3.178 mm^-1, F（000） = 1012, the final R = 0.0369 and wR = 0.0987. A total of 4082 unique reflections were collected, of which 2916 with I 〉 2σ（I） were observed. The Cu（Ⅱ） atom is five-coordinated in a distorted square-pyramidal geometry by one I atom in the apical position, two S atoms from a prdtc ligand and two N atoms from a phen ligand in the basal plane. There exist face-to-face aromatic π-π stacking interactions between adjacent phen ligands stabilizing the structure and making the complex assemble into a 1D structure along the a axis. It can be concluded that the difference of the dtc flexibility and reaction conditions result in the structural difference between complex 1 and CuI（dmdtc）（phen） （dmdtc = N, N-dimethyldithiocarbamate）.     

A Novel Binuclear Cu（Ⅱ） Complex with Nitroxide Radicals Exhibiting Ferromagnetic Interactions

A new binuclear Cu(Ⅱ) complex with nitronyl nitroxide radicals [Cu(NIT3Py)2Cl2]2(NIT3Py = 2-(3'-pyridinyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) has been synthesized and structurally characterized by X-ray diffraction analysis.It crystallizes in monoclinic,space group C2/c with a = 38.483(4),b = 7.2450(8),c = 27.559(3) ,β = 134.0180(10)°,V = 5525.6(10) 3,C48H64Cl4Cu2N12O8,Mr = 1206.00,Z = 4,Dc = 1.450 g/cm3,μ(MoKα) = 1.025 mm-1,F(000) = 2504,S = 1.066,the final R = 0.0471 and wR = 0.1121 for 3286 observed reflections(I > 2σ(I)).The title complex consists of centrosymmetric dinuclear units [Cu(NIT3Py)2Cl2]2,in which the copper ions are square-pyramidally coordinated by two pyridyl nitrogen atoms of two radical ligands and three chlorine anions,two of which bridge the copper ions.The magnetic measurements show ferromagnetic interactions between the copper ions and the radical ligands.     

Synthesis and Crystal Structure of a New Cadmium(Ⅱ) Polymer with One-dimensional Chain Structure: [Cd(5-hip)(phen)]n·nH2O (5-hip =5-Hydroxyisophthalate, phen = 1,10-Phenanthroline)

A new metal-organic coordination polymer [Cd(5-hip)(phen)]n.nH2O 1 has beenhydro- ermally synthesized and characterized by elemental analysis, IR, TG and single-crystal X-raydiffraction.The crystal of the complex crystallizes in monoclinic, space group P2/n with a =8.8071(17), b =12.386(2), c = 16.981(3)(A),β= 100.182(2)°, V = 1823.2(6)(A）,3, Mr= 490.73, Dc =1.788 g/cm3,μ(MoKa) = 1.240 mm-1, F(000) = 976, Z= 4, the final R = 0.0458 and wR = 0.1373 for 2864 observed reflections (I＞ 2σ(I)).The Cd atoms are coordinated by two N atoms from the phen ligands and four O atoms from 5-hydroxyisophthalate ligands in a highly distorted octahedral geometry.     

Synthesis, Crystal Structure and Properties of a Dinuclear Cobalt（II） Complex [Co2（a-furacrylato）4（Phen）2（H2O）]·C2H5OH

A dinuclear cobalt(Ⅱ) complex [Co2(α-furacrylato)4(Phen)2(H2O)]·C2H5OH has been synthesized with α-furacrylic acid and 1,10-phenanthroline as the ligands, and its crystal structure was determined. The crystal is of monoclinic system, space group C2/c with a=1.07388(8), b=2.4300(2), c=1.86708(14)nm, β=104.3830(10)o, V=4.719.4(7) nm3 , Dc=1.503 g/cm3 , Z=2, F(000)=2196, GOOF=1.053, the final R=0.0343 and wR=0.0883. The crystal structure shows that two neighboring cobalt(Ⅱ) ions are linked by the bridging coordination of two α-furacrylic acid anions and one water molecule, and their end positions are respectively coordinated with two 1,10-phenanthroline molecules and two α-furacrylic acid anions, forming a dinuclear structure. Both cobalt(Ⅱ) ions adopt hexa-coordinated distorted octahedral geometry. The electrochemical and fluorescence properties of the title complex are also discussed.