一维Z型链状配合物[Cd(BDC)(H2C2EIm)(H2O)]n的水热合成、晶体结构和荧光性质研究

水热合成了1个新配合物[Cd(BDC)(H₂C2EIm)(H₂O)]_n(BDC=对二苯甲酸;H₂C2EIm=2,2′-乙基双苯丙咪唑)。通过元素分析、红外光谱、热重以及X-射线单晶洐射对其进行了表征。该晶体属三斜晶系,P1 空间群。Cd(Ⅱ)原子通过BDC和H₂C2EIm 2种配体连接成一维Z型带状结构,带与带之间通过N-H…O,O-H…O连接成三维超分子结构。室温下配合物具有较强的荧光发射光谱。     

一维配合物{[Cd(BDC)(bpimb)_(0.5)(H_2O)]·H_2O}_n的水热合成、晶体结构和荧光性质研究(英文)

水热合成了一个新配合物{[Cd(BDC)(bpimb)0.5(H2O)]·H2O}n。通过元素分析、红外光谱、热重以及X-射线单晶洐射对其进行了表征.该晶体属单斜晶系,P21/c空间群。Cd髤原子通过BDC和bpimb两种配体连接成一维带状结构,带与带之间通过O-H…O和C-H…O连接成三维超分子结构。室温下配合物具有较强的荧光发射光谱。     

以三嗪衍生物及对苯二甲酸为配体的四个配合物的合成、表征及性质研究

通过水热合成法,合成了4个配位聚合物:[Mn(H2O)(PTZDA)(BDC)]n(1)、[Co(H2O)(PTZDA)(BDC)]n(2)、[Zn(H2O)(PTZDA)(BDC)]n(3)、[Cd(H2O)(PTZDA)(BDC)]n(4)(PTZDA=2,4-二氨基-6-(2′-吡啶)-均三嗪,H2BDC=对苯二甲酸),并分别用X射线单晶衍射、元素分析、红外光谱、差热分析和X-射线粉末衍射表征了这4个配合物。晶体结构分析表明,在配合物1~4中,配体PTZDA与中心金属离子螯合配位,金属离子通过配体BDC2-连结成一维链状结构,一维链之间通过氢键作用连接成三维超分子结构。磁性和荧光分析表明,配合物1和2具有非常弱的反铁磁作用;配合物3和4的荧光均为配体发光。     

配位聚合物[Cd2(BDC)2(obix)2]·H2O的合成、晶体结构和荧光性质

用水热合成方法得到1个新的配位聚合物[Cd2(BDC)2(obix)2]·H2O(H2BDC=对苯二甲酸,obix=1,2-(二亚甲基)二咪唑).配合物晶体属三斜晶系,P1空间群.晶体结构表明:镉原子与3个对苯二甲酸上的5个氧原子,2个1,2-(二亚甲基)二咪唑中的2个氮原子配位形成扭曲的五角双锥配位构型.2个Cd(Ⅱ)原子通过两个羧基桥联形成一个双核Cd2单元,再通过配体连接成二维层状结构,层与层之间通过C-H…O氢键和弱的π-π相互作用形成三维超分子结构.室温下配合物具有较强的荧光发射光谱.     

一个二重互穿的镉配合物:合成、结构和双功能荧光传感性质（英文）

通过水热合成的方法,制备了一个新型的镉配合物{[Cd(BDC)(L)]·1.5H2O}n(1)(L=N,N′-双(3-吡啶)-5-羟基苯-1,3-二甲酰胺、H2BDC=对苯二甲酸),并且通过单晶X射线衍射对配合物进行了结构的表征。分析结果表明,配合物1属于单斜晶系:C2/c,a=2.171 45(8),b=1.605 34(6),c=1.678 04(6) nm,Z=8,V=5.116 8(3) nm3,Dc=1.656 g·cm-3,F(000)=2 568,μ=0.914 mm-1,R=0.026 5,wR=0.067 6。结构分析表明每个Cd(Ⅱ)与2个配体上的吡啶N原子以及来自2个不同BDC上的4个氧原子形成六配位模式。BDC阴离子与Cd(Ⅱ)交替连接成(Cd-BDC)n链,该链通过成对的L拓展成具有平行互穿模式的二维63网络。研究了配合物1的相纯度、热稳定性、固态荧光性质以及对Fe3+和二氯甲烷的传感行为。     

基于芳香羧酸和双苯丙咪唑一维双Z型链钴配合物的水热合成、晶体结构和荧光性质研究

通过双苯丙咪唑作为含氮配体,辅以对苯二甲酸配体水热合成出了一种新型的双Z链钴配合物:[Co2(BDC)2(H2C3PIm)2(H2O)2]n(1)(H2BDC=对二苯甲酸;H2C3PIm=2,2丙基双苯丙咪唑),通过元素分析、热重以及X射线单晶洐射对其进行了表征。该晶体属正交晶系,Pca21空间群。每个Co髤原子都具有四面体配位结构,通过BDC和H2C3Pim配体连接形成Z型链结构,但由于配体BDC扭转角的不同,导致了配合物形成了由C-H…π作用与分子间氢键N-H…O,O-H…O连接的一种新颖的组成相同,结构不同的双Z型链状结构(A,B),A型Z链之间与B型Z链之间通过不同的分子间氢键相连组成三维超分子结构。室温下配合物具有较强的荧光发射光谱。     

配合物[Cd（1,3-BDC）（L）（H2O）2]·H2O的水热合成、晶体结构和荧光性质

利用水热方法制备了一个新的过渡金属镉配合物[Cd(1,3-BDC)(L)(H2O)2]·H2O(1,3-H2BDC=间苯二甲酸,L=2-(3-吡啶基)-1H-苯并咪唑),并通过元素分析、红外光谱和X-射线单晶衍射方法确定了该配合物的晶体结构.结构分析表明该配合物属于单斜晶系,P21/c空间群,晶胞参数a=1.016 41(6)nm,b=2.088 42(12)nm,c=1.001 38(6)nm,β=106.336 0(10)°,V=2.039 8(2)nm3,Z=4,R1=0.020 7,wR2=0.494.配合物中CdⅡ离子与L配体的1个吡啶N原子、1,3-BDC的4个氧原子和2个配位水的O原子配位,形成七配位的扭曲十面体结构.配体1,3-BDC的桥连相邻的CdⅡ离子形成一维聚合物链,相邻链间通过氢键和π…π作用形成三维超分子网络,并对该配合物的热稳定性和荧光性质进行了研究.     

[Cu(L-Ile)(Phen)(H2O)(ClO4)]的合成、结构及稳定性研究

合成了三元混配配合物[Cu(L-Ile)(Phen)(H20)(ClO4)](L-Ile=L-异亮氨酸,phen=1,10-邻菲咯啉),通过红外光谱、紫外-可见光谱、摩尔电导率、X射线单晶结构分析,对配合物进行了表征.该晶体属单斜晶系,P21空间群,晶胞参数:a=1.1704(5)nm,b=0.8090(5)nm,c=2.1822(5)nm,β=98.061(5)°,Z=2,Dx=1.60Mg·m-3,R1=0.0462,wR2=0.1225.每个配合物分子中Cu(Ⅱ)离子与一个L-Ile(N,O)配体、一个Phen(N,N)配体、一个H2O(O)配体及一个ClO4-(O)形成六配位的畸变八面体构型.本文还用电位滴定法测定了配合物的稳定常数,结果表明,配合物具有高的稳定性.     

两个金属铜配位聚合物Cu3(2,2′-bipy)2(C8H4O4)2(C8H5O4)2和Cu(Ⅰ)Cu(Ⅱ)(4,4′-bipy)1.5(C8H4O4)(C8H5O4)混合溶剂热合成及结构与性能研究

在中温混合溶剂热条件下合成了两个金属铜配位聚合物Cu3(2,2′-bipy)2(C8H4O4)2(C8H5O4)2和Cu(Ⅰ)Cu(Ⅱ)(4,4′-bipy)1.5(C8H4O4)(C8H5O4)(bipy=联吡啶,C8H4O4=1,3-间苯二甲酸),并对其进行了单晶结构解析及相关性能表征.配合物Cu3(2,2′-bipy)2(C8H4O4)2(C8H5O4)2(1)晶体属三斜晶系,P1空间群,a=1.03314(4)nm,b=1.08350(3)nm,c=1.15826(4)nm,α=83.104(2)°,β=84.609(2)°,γ=66.125(2)°,Z=1.配合物Cu(Ⅰ)Cu(Ⅱ)(4,4′-bipy)1.5(C8H4O4)(C8H5O4)(2)晶体属三斜晶系,P1空间群,a=1.06979(3)nm,b=1.09209(3)nm,c=1.47887(3)nm,α=91.795(2)°,β=93.2460(10)°,γ=118.6170(10)°,Z=2.通过使用不同的有机碱配体(2,2′-联吡啶和4,4′-联吡啶),并调节不同有机碱配体的用量,得到了结构不同的两个目标晶体产物相.产物均可稳定到3...     

一维链状配位聚合物[Ni(p-CPOA)(2,2′-bipy)(H2O)]n的合成与晶体结构

合成了一个新的配位聚合物[Ni(p-CPOA)(2,2′-bipy)(H2O)]n(p-CPOA2-= 4-羧基苯氧乙酸根,2,2′-bipy= 2,2′-联吡啶),并对其进行了元素分析、红外和单晶X-射线的表征.结果表明:配合物的化学式为C19H16N2O6Ni,晶体属单斜晶系,空间群为C2/c,晶胞参数a = 14.254(3),b = 13.085(3),c = 19.372(4)A,β = 104.89(3)°,V = 3491.8(12)A3,Z = 8,Mr = 427.05,Dc = 1.625 g/cm3,μ = 1.153mm－1,F(000) = 1760,最终R = 0.0345,wR = 0.0565。Ni原子为扭曲的六配位八面体构型,每个p-CPOA2－配体桥联2个Ni原子形成一维折叠链状结构,Ni…Ni原子之间的距离为9.675A,且通过分子间氢键将一维链连接成双链结构.     

Hydrothermal Synthesis and Crystal Structure of a Cobalt(Ⅱ) Polymer with One-dimensional Chain Structure: [ Co(phen) (BDC)(H2O)]n·0.5nH2BDC

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) (A), α = 75.946(3), β = 65.306(3), γ = 86.073(4)°, V = 1039.6(6)(A)3, C24H17CoN2O7, Mr=504.33, Dc = 1.611 g/cm3, μ(MoKa) = 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.     

之字链聚合物[Zn(o-bda)(phen)(H2O)]n·nH2O的结构

[Zn(o-bda)(phen)(H₂O)]_n·nH₂O (C22H20N2O6Zn) (1) [where o-bda is o-phenylenediacetic acid dianion and phen is 1,10-phenanthroline] crystallizes in triclinic system, space group P1 with a=0.826 5(4) nm, b=1.042 4(5) nm, c=1.238 1(6) nm, α=76.987(9)°, β=70.987(9)°, γ=78.281(8)°, V=0.9728(8) nm³, Z=2, D_c=1.617 g·cm^-3, μ=1.308 mm^-1 and F(000)=488. Zn(Ⅱ) ion has a distorted trigonal bipyramid coordination geometry formed by two carboxyl O atoms from two different o-bda groups, two N atoms from the phen ligand and one terminal water molecule. Adjacent Zn(Ⅱ) ions are interlinked by o-bda groups into a infinite zigzag chain structure with a Zn…Zn distance of 0.825 6(4) nm. The adjacent zigzag chains may also be paired under direction of supramolecular recognition and attraction through both π-π stacking and hydrogen bonding interactions into molecular zippers, which further interlinked into a three-dimensional supramolecular network by these noncovalent interactions. CCDC: 600935.     

配位聚合物[Mn(4，4′-bpy)1.5(H2O)3](ClO4)·(4，4′-bpy)(L)·H2O的水热合成和晶体结构

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, M_r=780.10, D_c=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 a Coordination Polymer {[Co(phth)(phen)(H2O)]·(C2H5OH)}n

The coordination polymer {[Co(phth)(phen)(H2O)]·(C2H5OH)}n (phth = phthalate, phen = 1,10-phenanthroline) with formula C22H20CoN2O6 (Mr = 467.33) was synthesized by the solvothermal method under low temperature, and its crystal structure was determined by singlecrystal X-ray diffraction. The complex belongs to monoclinic system, space group P21/n with a =12.7352(16), b = 8.8125(11), c = 18.677(2) (A), β = 102.633(2)°, V = 2045.3(4) (A)3, Z = 4, Dc =1.518 g/cm3,μ = 0.882 mm-1, F(000) = 964, S = 1.053, the final R = 0.0401 and wR = 0.0984 for 3135 observed reflections (I ＞ 2σ(I)). Single-crystal X-ray analysis revealed that the Co(Ⅱ) ion is six-coordinated. The cobalt complex forms a one-dimensional chain structure via phthalate bridging ligand. In the cobalt complex, a 3D network structure is formed by π-π stacking interaction of 1,10-phenanthroline as well as intermolecular hydrogen bonding interactions.     

A 2D Wavy Parquet Architecture Based on the Biphenyl-3,3’,4,4’-tetracarboxylic Acid and Bis(2-benzimidazole)alkanes Ligands

A double-T-shaped ligand (H4BPTC) and bis(2-benzimidazole)alkanes as the spacers have been firstly used to direct the assembly of a 2D coordination polymer with wavy parquet network topology, [Zn(BPTC)0.5(H2C2EIm)(H2O)]n (1, C24H18ZnN4O5, Mr = 507.79, H4BPTC = biphenyl-3,3',4,4'-tetracarboxylic acid, H2C2EIm = 2,2'-(1,2-ethanediyl)-bis(1H-benzi- midazole), which was determined by single-crystal X-ray diffraction analysis. The crystal belongs to the monoclinic system, space group P21/n with a = 1.1844(5), b = 1.4019(5), c = 1.4026(5) nm, β = 108.359(5)°, V = 2.2104(15) nm3, Z = 4, Dc = 1.526 g/cm3, μ(MoKα) = 1.156 mm-1, F(000) = 1040, S = 1.038, the final R = 0.0427 and wR = 0.0793 for 3834 reflections with I > 2σ(I). The compound units are linked through BPTC ligands into a wavilness parquet 2D layer and further connected into a 3D framework via π-π packing interactions between the adjacent H2C2EIm ligands and weak N-H…O hydrogen bonding between uncoordinated carboxylate and the nitrogen atoms of H2C2EIm as well as the free water molecules.     

一维链状配合物[Cd(FA)(pyim)(H2O)]的合成、晶体结构和荧光性质

A one-dimensional zigzag chain complex of Cd(FA)(pyim)(H₂O) (1) (H₂FA=4,4′-(hexafluoroisopropylid-ene)bis(benzoic acid) and pyim=2-(2-pyridyl)imidazole) was hydrothermal synthesized from Cd(NO₃)₂·4H₂O, 4,4′-(hexafluoroisopropylidene)bis(benzoic acid) and 2-(2-pyridyl)imidazole. Single-crystal X-ray analysis revealed that the zigzag chains of 1 are linked into three-dimensional supramolecular networks by both O-H…O hydrogen-bonds and π…π stacking interactions. The crystal is of monoclinic, space group P2₁/n with a=0.856 34(10) nm, b=1.020 49(12) nm, c=2.809 0(3) nm, β=98.115(2)°, V=2.430 2(5) nm³, D_c=1.820 g·cm^-3, Z=4, F(000)=1 320, Goof=1.009, R₁=0.047 0, wR₂=0.115 5. In addition, complex 1 exhibits strong photoluminescent emission at room temperature. CCDC: 733837.     

Cadmium（Ⅱ） Nitrite Complex Based on the Bis（2-benzimidazole） and Aromatic Carboxylate Ligands

A new cadmium(Ⅱ) nitrite complex Cd2(H2C3PIm)2(BDC)(NO2)2(1,H2C3PIm = 2,2'-(1,3-propanediyl)bis(1H-benzimidazole),H2BDC = 1,4-benzenedicarboxylic acid) has been synthesized by solvothermal reaction in formamide,and its structure(C42H36Cd2N10O8,Mr = 1033.61) was determined by single-crystal X-ray diffraction analysis.The crystal belongs to the monoclinic system,space group P21/n with a = 0.9859(5),b = 0.8936(5),c = 2.3188(5) nm,β = 97.576(5)°,V = 2.025(16) nm3,Z = 2,Dc = 1.695 g/cm3,μ(MoKα) = 1.118 mm-1,F(000) = 1036,S = 1.017,the final R = 0.0304 and wR = 0.0752 for 3761 reflections with I > 2σ(I).The centrosymmetric complex 1 contains a dimer in which two distorted octahedral Cd(II) centers are bridged by BDC ligand and chelated by H2C3PIm.The units of the complex are linked via weak N-H···O hydrogen bonds between the nitrito and the BDC ligands,leading to the formation of a 1D zigzag chain along the b axis.The π-π packing interactions contribute to the formation of a three-dimensional supramolecular architecture.The complex exhibits strong photoluminescence at room temperature.     

Synthesis, Crystal Structure and Electrochemical Properties of One-dimensional Chain Coordination Polymer [Co(Ⅱ)(C6H5CH=CHCOOH)2(4,4''-bipy)(H2O)5]n

A one-dimensional chain coordination polymer [Co(Ⅱ)(C6H5CH=CHCOOH)2(4,4'-bipy)(H2O)5]n has been synthesized with cinnamylic acid, 4,4'-bipy and cobaltous chloride as raw materials. Crystal data for this complex: monoclinic, space group P21/c, a - 1.1481(3), b =1.1230(2), c = 1.1759(3) nm, β = 97.054(4)°, V = 1.5046(6) nm3, Mr= 617.50, Dc = 1.363 g/cm3, Z= 2, μ(MoKα) = 0.627 mm-1, F(000) = 646, S = 1.062, R 0.0443 and wR = 0.1178. The crystal structure shows that two neighboring cobalt(Ⅱ) ions are linked together by one 4,4'-bipy, and the whole complex molecule adopts a one-dimensional chain structure. Each cobalt(Ⅱ) ion is coordinated with two nitrogen atoms from two 4,4'-bipy molecules and four oxygen atoms from four water molecules, giving a distorted octahedral coordination geometry. The electrochemical properties were analyzed by combining with the crystal structure.     

一维链状4-乙基苯甲酸镧配合物[La(EBA)_3(EBAH)(H_2O)]_n的合成、晶体结构和性质研究(英文)

水热法合成了配位聚合物[La(EBA)3(EBAH)(H2O)]n(EBA=4-乙基苯甲酸根,EBAH=4-乙基苯甲酸),并通过X-射线衍射单晶结构分析、红外光谱、紫外光谱、荧光光谱以及热重分析对配合物进行了结构和性质研究。配合物属三斜晶系,P1空间群。该配合物具有一维链状结构。La3+离子与9个O原子配位,其中4个O原子来自4个双齿桥联的4-乙基苯甲酸根,3个O原子来自2个螯合-桥联的4-乙基苯甲酸根,1个O原子来自1个中性的4-乙基苯甲酸,1个O原子来自配位水分子。La3+离子处于九配位扭变的三帽三角棱柱构型中。相邻La3+离子通过双齿桥联或螯合桥联的4-乙基苯甲酸根联结成一维链状结构。存在于分子内的氢键使一维链状结构更加稳定。由于相邻一维链的苯环间存在弱的π…π堆积作用,使分子沿着a轴堆积形成二维层状结构。同时,标题配合物固体具有光致发光特性,蓝光区的较强发射归于配体的π→π*电子跃迁。