Blue Luminescent Zinc(II)-and Cadmium(II)-1,4-phenylenediacetate Complexes

1 INTRODUCTION The crystal engineering and design of solid-state coordination polymers have become a very attrac- tive field in recent years[1～4]. Many interesting fra- meworks with intriguing potential applications have been obtained through the self-assembly of selected metal centers and carboxylate ligands[5, 6]. Compared with aromatic carboxylate ligands such as terephtha- lic acid[7, 8], benzene tricarboxylic acid[9, 10], benzene tetracarboxylic acid[11, 12] and so on, those ligands …     

Blue Luminescent Zinc(Ⅱ)- and Cadmium(Ⅱ)-1,4-phenylenediacetate Complexes

Two mixed-ligand polymeric complexes formulated as {[Zn(pda)(bpy)]·0.5H2O}n (pdathermally synthesized. Single-crystal X-ray diffraction analyses reveal that the structures of complexes 1 and 2 possess similar one-dimensional zigzag chains. Crystal data for compound 1: monoclinic, space group P21/c, a = 15.965(2), b = 8.305(1), c = 14.856(2) (A),β= 1 1 1.048(2)°, Mr = 422.73, V= 1838.2(4) A3, Z= 4, Dc = 1.528 g/cm3, μ = 1.368 mm-1, F(000) = 868, the final R = 0.0783 and wR= 0.1469 (w=1/[σ2(Fo2) + (0.035 1p)2+ 8.0014P], where P = (Fo2+ 2Fc2)/3) based on 2025 observed reflections with I ＞ 2σ(I); and those for compound 2: monoclinic, space group C2/c, a = 29.921 (7), b= 8.5400(17), c = 15.320(3) (A),β= 99.59(3)°, Mr = 487.75, V = 3859.9(14) A3, Z = 8, Dc = 1.668g/cm3, μ = 1.169 mm-1, F(000) = 1936, the final R = 0.0723 and wR = 0.1612 (w = 1/[σ32(Fo2 ) +(0.0681p)2+ 55.9577P], where P = (Fo2+ 2Fc2)/3) based on 2130 observed reflections with I ＞ 2σ(I).Fluorescent analyses show that both complexes exhibit intense blue luminescence (λmax = 485 nm for 1and 475 nm for 2) upon excitation at 330 nm.     

Synthesis and Molecular Structure of Acetic Acid-3,5-diacetoxy-2-acetoxymethyl-6-(4-quinoxalin-2-yl-phenoxy)-tetrahydro-pyran-4-yl-ester

1 INTRODUCTION Quinoxaline derivatives have broad applica- tions in dye, medicine, polymer materials and so on, such as the active red Levafix. In recent years, quinoxaline derivatives are found to show great effects in anticancer, anthelmintic, antibacterial and therapy of HIV[1～3]. Glycosides are the most important forms of sugars in nature, and chemists have synthesized O-glycosides, N-glycosides, S- glycosides, C-glycosides, etc.[4～8] Glycosides also have anticancer and anthelmin…     

Hydrothermal Synthesis and Crystal Structure of a Coordinated Polymer： [Ni（pda）（H2O）3]n （pda = Pyridine-2,3-dicarboxylate）

1 INTRODUCTIONThe design and synthesis of metal-organic coor- dinated polymer have attracted considerable atten- tion in recent years. The infinite networks construc- ted from transition metal complexes have intere- sting structures as well as potential applications as smart electronic, magnetic porous materials, cataly- sis, host-guest chemistry, and so on[1～4]. In the as- sembly and synthesis of polymer structures, the me- tal ions, bi- or multi-dentate ligand, solvent and the ratio of …     

Synthesis and Structure of a New Dimanganese Complex [Mn2(μ-OAc)2(phen)4](ClO4)2

A dinuclear manganese(II) complex, [Mn2(μ-Oac)2(phen)4](ClO4)2 1 (phen = phenanthroline), has been prepared by the reaction of Mn(Oac)2·4H2O, phen, tartaric acid and NaClO4·H2O in MeOH/H2O solution. The crystal structure has been determined by X-ray diffraction. The crystal is of monoclinic, space group P21/c with a = 9.6052(4), b = 14.2353(7), c = 18.8893(8)(A),β= 96.584(1)°, C52H38Cl2Mn2N8O12, Mr = 1147.68, V = 2565.8(2) (A)3, Dc = 1.486 g/cm3, F(000) = 1172, μ = 0.668 cm-1 and Z = 2. The final refinement gave R = 0.0605 and wR = 0.1619 for 3203 reflections with I > 2σ(I). The complex contains a dinuclear [Mn2(μ-Oac)2(phen)4]]2+ cation located at a centre of symmetry with two syn-anti acetate bridges between the Mn atoms. Each Mn atom is coordinated by four N atoms from two chelating phen ligands and two O atoms from a pair of bridging acetate groups to furnish a distorted octahedral geometry. Two ClO4 anions exist around the cation [Mn2(μ-Oac)2(phen)4]2+as counter ions.     

Hydrothermal Synthesis and Crystal Structure of a Novel Composite Keggin-type Arsenotungstate： [Ni（phen）2] [Hphen] （AsW12O40）

A novel polyoxometalate-based composite compound [Ni(phen)2][Hphen](AsW12O40) (phen = 1,10-phenanthroline) 1 has been hydrothermally synthesized and characterized by elemental analysis, IR, TGA, ESR spectroscopy and single-crystal X-ray diffraction. Each structure unit of 1 consists of one polyoxoanion AsW12O403-, one free phenanthroline molecule and one coordination cation [Ni(phen)2]2+. The title compound crystallizes in the orthorhombic system, space group P212121, with a = 12.2383(7), b = 21.0884(11), c = 22.3237(12) , V = 5761.4(5) 3, Mr = 3520.44, Z = 4, Dc = 4.059 g/cm3, F(000) = 6204, μ(MoKα) = 24.844 mm-1, GOF = 1.022, the final R = 0.0376 and wR = 0.0742 (I > 2σ(I)) for 865 parameters and 9637 observed reflections with I > 2σ(I).     

Synthesis,Crystal Structure and Properties of a Novel Nickel Citrate Ni（H_2cit）（phen）（H_2O）·3H_2O（H_4cit = Citrate Acid,phen=1,10-Phenanthroline）

A new nickel citrate compound Ni(H2cit)(phen)(H2O).3H2O(H4cit = citrate acid,phen = 1,10-phenanthroline) has been synthesized and characterized by single-crystal X-ray diffraction.It crystallizes in the trigonal system,space group P31 with a = 13.8319(13),c = 10.425(2),V = 1727.3(4)3,Dc = 1.445 g/cm3,Mr = 501.09,F(000) = 780,μ = 0.901 mm-1,Z = 3,R = 0.0760 and wR = 0.1730 for 3859 observed reflections(I > 2σ(I)).In this compound,Ni2+ cation is chelated by a phen molecule,one H2cit2-anion and one H2O molecule.The citric acid coordinates to the Ni2+ center through three functional groups:α-hydroxyl,α-carboxylate and β-carboxylate while another α-carboxylate forms hydrogen bond with surrounding H2O molecule.And the citric acid is doubly protonated.The temperature-dependent magnetic susceptibility data revealed that the compound is a paramagnetic material.     

新型邻菲咯啉镁(II)配合物[Mg(H_2O)_4(phen)](phen)[C_6H_4(COO)_2]·H_2O的水热合成和晶体结构

合成了新型邻菲咯啉镁(II)配合物 [Mg(H2O)4(phen)](phen)[C6H4(COO)2]?H2O, 并对其进行了元素分析、IR、TG、X-射线衍射等表征。单晶衍射结果表明, 该配合物晶体属单斜晶系, 空间群为 P21/c, 晶胞参数:a = 11.873(2), b = 31.992(6), c = 8.144(2) ?, β = 93.98(3), V = 3085.9(11)?3, Z = 4, F(000) = 1336, Dc = 1.375 g/cm3, μ(MoKα) = 0.120 mm?1。对于 6889[ Rint = 0.0264]个独立衍射点, 有 3939 个可观测点满足(I≥2σ (I)), 最终的偏离因子 R = 0.0430, wR = 0.1294。标题配合物由 1 个邻菲咯啉合镁阳离子[Mg(H2O)4(phen)]2+、1 个邻苯二甲酸根阴离子C6H4(COO)2)2–、1 个溶剂邻菲咯啉分子和 1 个结晶水分子组成。中心 Mg(II)离子为六配位, 六个配位原子形成畸变的 MgN2O4八面体构型。     

Crystal Structure and Properties of a Terbium Benzoate Complex with 1,10-Phenanthroline

1 INTRODUCTION The photoactive lanthanide organic complexessuch as europium and terbium chelating with ?-dike-tones, macrocyclic ligands and a number of polya-mino carboxylates, are of both fundamental and tech-nological interest due to their intense…     

Synthesis and Crystal Structure of [Cu(phen)2(SO4)(H2O)]·0.5C4H4O4·7H2O

The title compound, [Cu(phen)2(SO4)(H2O)]·0.5C4H4O4·7H2O (phen = 1,10-phe-nanthroline and C4H4O4 = fumaric acid), has been synthesized and characterized by single-crystal X-ray diffraction. The crystal is of triclinic, space group P with a = 11.4827(2), b = 11.9086(2), c = 13.77350(10)(A), α = 80.6830(10), β = 66.6480(10), γ = 64.0480(10)o, V = 1554.63(4) (A)3, Mr = 722.17, Z = 2, Dc = 1.543 g/cm3, μ = 0.845 mm-1, F(000) = 750, R = 0.0349 and wR = 0.0837 for 4754 observed reflections (I > 2σ(I)). The compound contains a six-coordinated copper(II) center, which is surround by four N atoms of two phen ligands (Cu-N distances in the range of 1.997(2)～2.225(2)(A)), one sulfate O atom (Cu-O = 2.0037(17) (A)) and one water O atom (Cu-O(5w) = 2.719(2) (A)) in a distorted octahedral geometry. Extensive hydrogen-bonding interactions are involved in water molecules, ligated sulfate anions and fumaric acid molecules. In addition, π-π interactions via aromatic nitrogen-containing ligands are also discussed. The combination of non-covalent interactions leads to the formation of a 3-D network structure.     

Hydrothermal Synthesis and Crystal Structure of a New Zero-dimensional Complex: [Zn(H2BPTC)(phen)2]n·3nH2O

A new metal-organic coordination complex [Zn(H2BPTC)(phen)2]n·3nH2O (BPTC =3,3',4,4'-benzophenone tetracarboxylate, phen = 1,10-phenanthroline) 1 has been obtained from hydrothermal reaction and characterized by elemental analysis, IR, TG and single-crystal X-ray diffraction. In compound 1, the zinc cation is hexa-coordinated with two carboxylate oxygen atoms from one H2BPTC ligand and four nitrogen atoms from two different phen ligands, showing a slightly distorted octahedral geometry. Crystal data: C41H30N4O12Zn, Mr = 836.06, monoclinic,P21/c, a = 14.2714(9), b = 16.9386(10), c = 15.0151(9) (A),β = 101.3420(10)°, V= 3558.8(4) (A)3, Dc= 1.560 g/cm3,μ(MoKα) = 0.766 mm-1, F(000) = 1720, Z = 4, R = 0.0439 and wR = 0.1157 for 4123observed reflections with I ＞ 2σ(I).     

Synthesis and Crystal Structure of DinuclearCadmium Complex [Cd2（phen）4（fca）2]（ClO4）2-（H2O）2

1 INTRODUCTION During the search of molecule-based materials with interesting properties such as catalysis, cla- thration etc., much attention has been focused on the synthesis of one-, two- and three-dimensional extended solids involving cadmium[1], as its d10 configuration permits a wide variety of geometries and coordination numbers. Rigid bridged ligands such as carboxylate groups are frequently used to construct these materials. Therefore, the coordi- nation chemistry of Cd(Ⅱ) ca…     

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.     

Crystal Structure and Spectroscopic Properties of[Ni（phen）3]Pic2.2CH3CN

1　ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｔｈｅｐｒｏｃｅｓｓｏｆｔｈｅｐｒｅｐａｒａｔｉｏｎｏｆＮｉ(Ｐｉｃ) 2 Ｌ(Ｌ =1 ,3 ｂｉｓ (2 ｆｏｒｍｙｌｐｈｅｎｏｘｙ) 2 ｈｙｄｒｏｘｙｌ ｐｒｏｐａｎｅｔｈｉｏｓｅｍｉｃａｒｂａｚｏｎｅ )ｍｉｘｅｄｃｏｍｐｌｅｘｗｉｔｈｐｈｅｎ,ａｒｅｄｃｒｙｓｔａｌｗａｓｏｂｔａｉｎｅｄｉｎａｃｅｔｏｎｉｔｒｉｌｅｓｏｌｕｔｉｏｎ .Ｈｏｗｅｖｅｒ,ｔｈｅｅｌｅｍｅｎｔａｌａｎａｌｙｓｉｓｒｅｓｕｌｔｓｏｆｔｈｅｒｅｄｃｒｙｓｔａｌｉｎｄｉｃａｔｅｄｔｈａｔｉｔｉｓｎｏｔｔｈｅ…     

Synthesis,Structure and Photoluminescent Property of a New 2D Zn（Ⅱ） Coordination Polymer Constructed by Biphenyl-3,3＇,5,5＇-tetracarboxylate

A new 2D Zn(II) coordination polymer,[Zn(btc)0.5(phen)]n(1,H4btc = biphenyl-3,3',5,5'-tetracarboxylic acid,phen = 1,10-phenanthroline),has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction analysis,elemental analysis and IR spectro-scopy.Complex 1 crystallizes in the triclinic system,space group P1 with a = 7.6878(6),b = 10.3453(8),c = 10.9589(9) ,α = 113.3540(10),β = 90.5460(10),γ = 90.4280(10)°,V = 800.09(11) 3,Z = 2,Dc = 1.696 Mg.m-3,μ = 1.566 mm-1,F(000) = 414,the final R = 0.0359 and wR = 0.0778 for 2441 observed reflections with I > 2σ(I).Complex 1 has a 2D layered network containing dinuclear Zn(II) structural units.The 2D layers are further linked by the phen molecules through π-π stacking interactions into a 3D supramolecular framework.The photoluminescent property of 1 was also studied in the solid state at room temperature.     

Synthesis and Crystal Structure of a 2-D Framework Supramolecular Complex [Cd2（phen）2（adip）（NO3）2]

1 INTRODUCTION In the design of crystal molecule, inorganic crystal engineering is one of the focused fields that are ever developing[1]. The introduction of different metal ions and bridging ligands often gives rise to novel physical and chemical properties[2~4]. Conse- quently, the supramolecular compounds constructed from weak interactions, such as hydrogen bond, π-π stacking, C–H???O interaction, ion-π interaction and hy- drophobing interaction, have become the new focus of cryst…     

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）.     

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.     

Hydrothermal Synthesis and Crystal Structure of a Cobalt(Ⅱ) Polymer with One-dimensional Chain Structure: [Co(phen)(BDC)(H_2O)]_n·0.5nH_2BDC

A metal-organic coordination polymer [Co(phen)(BDC)(H2O)]n·0.5nH2BDC (H2BDC = terephthalic acid, phen = 1,10-phenanthroline) has been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectrum, TG and single-crystal X-ray diffraction. The complex crystallizes in triclinic, space group P1 with a = 9.771(3), b =10.739(3), c = 11.249(4) , α = 75.946(3), β = 65.306(3), γ = 86.073(4)o, V = 1039.6(6) 3, C24H17CoN2O7, Mr = 504.33, Dc = 1.611 g/cm3, μ(MoKα) = 0.878 mm-1, F(000) = 516, Z = 2, the final R = 0.0547 and wR = 0.1138 for 2916 observed reflections (I > 2σ(I)). It exhibits a one-dimensional zigzag chain-like structure.     

Hydrothermal Synthesis and Crystal Structure of a New Zero-dimensional Complex: [Zn(H_2BPTC)(phen)_2]_n·3nH_2O

A new metal-organic coordination complex [Zn(H2BPTC)(phen)2]n·3nH2O (BPTC = 3,3′,4,4′-benzophenone tetracarboxylate, phen = 1,10-phenanthroline) 1 has been obtained from hydrothermal reaction and characterized by elemental analysis, IR, TG and single-crystal X-ray diffraction. In compound 1, the zinc cation is hexa-coordinated with two carboxylate oxygen atoms from one H2BPTC ligand and four nitrogen atoms from two different phen ligands, showing a slightly distorted octahedral geometry. Crystal data: C41H30N4O12Zn, Mr = 836.06, monoclinic, P21/c, a = 14.2714(9), b = 16.9386(10), c = 15.0151(9) , β = 101.3420(10)o, V = 3558.8(4) 3, Dc = 1.560 g/cm3, μ(MoKα) = 0.766 mm-1, F(000) = 1720, Z = 4, R = 0.0439 and wR = 0.1157 for 4123 observed reflections with I > 2σ(I).