Helical Coordination Polymer with a 3-Fold Interpenetration Structure Based on 5-(Hydroxymethyl)isophthalic Acid

5-（Hydroxymethyl） isophthalic acid （H2HIA） as a novel organic ligand was prepared from 3,5-bis（methoxycarbonyl）benzoic acid by a two-step method. And then, a 3D helical coor- dination polymer with a 3-fold interpenetration structure, namely [Zn1/2（HIA）1/2（DPEE）1/2]n （1）, was hydrothermally synthesized at 160 ℃, using H2HIA ligands to assemble with DPEE ligands and Zn2＋ ions. Complex 1 crystalizes in orthorhombic system, space group Pnna, with a = 8.2118（5）, b = 17.1698（7）, c =14.9922（7） ？, V = 2113.82（18） ？3, μ = 1.194 mm-1, Z = 4 and S = 0.967. Moreover, some physical characteristics of complex 1, such as powder X-ray diffraction （PXRD）, thermogravimetry analyses （TGA） and photoluminescent properties, were also investigated.

Synthesis, Crystal Structure and Properties of a Chiral 3D Supramolecular Coordination Polymer [Co(HL)·(DMF)]_n from 5-(Imidazol-1-ylmethyl)isophthalic Acid

A chiral supramolecular coordination polymer, [Co（HL）·（DMF）]n（1）, with helical chains from a flexible ligand 5-（imidazol-1-ylmethyl）isophthalic acid（H2L） has been obtained under hydrothermal conditions and characterized by elemental analysis, powder X-ray diffraction（PXRD）, IR, Uv/vis spectra, thermal gravimetric analyses（TGA） and also by single-crystal X-ray diffraction. It crystallizes in hexagonal, space group P6522 with a = 8.8109（3）, b = 8.8109（3）, c = 71.771（3） , γ = 120°, V = 4825.3（3） -3, Z = 6, Mr = 695.55, Dc = 1.436 g/cm-3, Rint = 0.0684, F（000） = 2166, the final R = 0.0923 and w R = 0.2697 for 3056 observed reflections（I 2σ（I））. The title coordination polymer 1 shows a chiral layered structure based on right-handed helix chains. Such layers are associated together through hydrogen-bonding interactions to form a 3D supramolecular framework.

Syntheses, Crystal Structures and Properties of Two Metal-organic Complexes Based on 5-(4-Pyridyl)-methoxyl Isophthalic Acid

Two new metal-organic frameworks, [Co3L2（NO2）2（H2O）2],, （1） and{[Ni（L）（H2O）5] （H2O）2.DMF}, （2, H2L = 5-（4-pyridyl）-methoxyl isophthalic acid）, have been synthesized by the hydrothermal method and characterized by elemental analysis, infrared spectroscopy, thermogravimetric analysis （TGA） and X-ray crystallography. Compound 1 crystallizes in the monoclinic system with space group P2/c and adopts a slightly distorted octahedral configuration. In compound 1, the 2D bilayered structures are linked by O-H...O and O-H...N hydrogen bonds to form a 3D framework. Compound 2 crystallizes in the monoclinic system with space group P2/n, and the central nickel atoms are octa-coordinated with five O atoms from coordinated water molecules and one N atom from one H2L ligand. The abundant O-H…O hydrogen bonds and π…π interactions link the molecules into a 3D framework. In addition, compounds 1 and 2 exhibit strong ultraviolet absorption in the solid state at room temperature.

Syntheses and Characterizations of Cd(Ⅱ) and Pr(Ⅲ) Complexes Based on 5-(Tetrazol-5-yl) Isophthalic Acid

Hydrothermal reactions of 5-（tetrazol-5-yl） isophthalic acid with cadmium nitrate/praseodymium nitrate led to two complexes of [Cd3（TZI）2（H2O）（11）]n（1） and [Pr（TZI）（H2O）5]n（2）. Their structures and properties were determined by X-ray diffraction, IR spectroscopy, fluorescence spectrum, thermal gravimetric analyses and elemental analysis. Complex 1 belongs to monoclinic system, I2/c space group, with a = 12.8688（3）, b = 18.0925（3）, c = 14.5190（3）A, β = 116.054（3）°, V =3036.92（13） A^3, Z = 4; complex 2 crystallizes in triclinic, space group P 1, with a = 7.9690（5）, b =9.7665（8）, c = 10.4353（9） A, α = 116.709（9）, β = 107.461（6）, γ = 95.671（6）°, V = 665.54（9）A^3 and Z =2. Complex 1 is a 3D planar structure. Complex 2 is a one-dimensional double chain configuration and extends into a 3D network by hydrogen bonds and π-π interactions.

Synthesis,Crystal Structure and Properties of a Zinc(Ⅱ) Complex Based on 5-(1H-Tetrazol-5-yl)isophthalic Acid Ligand

A novel polymeric zinc（II） complex {[Zn2（TIA）（H2O）3]·（NO3）}n（1, H3TIA = 5-（1H-tetrazol-5-yl）isophthalic acid） has been synthesized in mixed solvents under solvothermal conditions and characterized by elemental analysis, IR spectroscopy and X-ray single-crystal diffraction. Complex 1 crystallizes in orthorhombic, space group Cmcm with a = 10.4210（6）, b =23.3526（14）, c = 6.9214（4）A, V = 1684.37（17）A^3, Z = 4, C9H4N5O（10）Zn2, Mr = 472.91, Dc = 1.865g/cm^3, F（000） = 932, λ（MoK α） = 2.909 mm^-1, R = 0.0423 and wR = 0.1287. The complex has good thermal stability and excellent photoluminescent property.

A Zn(Ⅱ) Coordination Polymer Based on a Flexible Polycarboxylate Ligand 5-(4-Hydroxypyridinium-1-ylmethyl)-isophthalic Acid: Synthesis, Structure, and Property

A Zn（Ⅱ） supramolecular coordination polymer, {[Zn2（L）2（m-bix）（H20）]6H2O}n（1）, with an interesting 1D→2D polythreading array from a flexible and angular organic aromaticpolycarboxylate ligand 5-（4-hydroxypyridinium-l-ylmethyl）isophthalic acid （H2L）, and N-donorligand 1,3-bis（imidazol-l-ylmethyl）benzene （m-bix）, has been obtained under hydrothermalconditions and characterized by elemental analysis, powder X-ray diffraction （PXRD）, IR, thermalgravimetric analyses （TGA） and single-crystal X-ray diffraction. In 1, the Zn（Ⅱ） center has twocoordination geometries. One exhibits a trigonal bipyramidal coordination sphere, and the other isa tetrahedral geometry; L2- has two different coordination modes, with one connecting three Zn（Ⅱ）ions through two monodentate carboxylate groups and the monodentate hydroxyl group, and theother bridging two Zn（Ⅱ） ions through two carboxylate groups. The L2- anions connect the Zn（Ⅱ）centers forming an infinite 1D tubular structure. These 1D tubes are interconnected by the m-bixspacers to form a 2D framework. Such 2D layers are further assembled into a 3D supramolecularnetwork via hydrogen bonds. Meanwhile, the luminescent property of 1 has also been investigatedin detail.

Syntheses, Structures and Properties of Three Novel La(Ⅲ)/Co(Ⅱ) Coordination Polymers Based on 5-(3-(Tetrazo-5-yl)phenyl)isophthalic Acid

Three novel complexes, namely {[La(tapipa)(4,4′-bibp)·(H2O)2]·H2O}n(1),{[La-(tapipa)(H2O)4(OH)]·3 H2O}n(2),[Co(tapipa)(1,4-bbib)]n(3)(tapipa = 5-(3-(tetrazo-5-yl)phenyl)isophthalic acid, 4,4′-bibp = 4,4′-bis(imidazolyl)biphenyl, and 1,4-bbib = 1,4-bis(benzimidazo-1-ly)benzene) have been synthesized under solvothermal conditions and characterized by PXRD, IR,TGA, and so on. Complex 1 presents a 2 D layer structure, which is finally packed into a 3 D supramolecular structure by means of hydrogen bonds;complexes 2 and 3 exhibit 1 D chains and 2 D wavy-type structures, respectively, which are expanded into 3 D supramolecular structures through hydrogen bonds and π-π interactions. Furthermore, the luminescence properties of complex 1 and the variable-temperature magnetic susceptibilities of 3 were investigated. Complex 1 has highly selective sensing for Fe^3+ and Cr2O7^2- ions.

Hydrothermal Synthesis,Crystal Structure and Properties of a Novel 3D Metal-organic Coordination Polymer with Helical Chains Based on 5-(Imidazol-1-ylmethyl)isophthalic Acid

A novel 3D metal-organic coordination polymer with helical chains based on a flexible 5-（imidazol-1-ylmethyl）isophthalic acid（H_2L） as a main ligand and 1,2-bis（4-pyridyl）ethane（bpa） as a N-containing ancillary ligand,[Cd L（bpa）_（0.5）]_n（1）,has been obtained under hydrothermal conditions and characterized by elemental analysis,powder X-ray diffraction（PXRD）,IR,thermal gravimetric analyses（TGA） and single-crystal X-ray diffraction.It crystallizes in monoclinic,space group P2_1/c with a = 10.984（2）,b = 10.1829（12）,c = 17.782（3） A,β = 123.156（11）o,V = 1665.1（5） A^3,Z = 4,Mr = 448.72,Dc = 1.790 g/cm^3,Rint = 0.0871,F（000） = 892,the final R = 0.0687 and w R = 0.1294 for 2920 observed reflections（I 〉 2σ（I））.In complex 1,the L^2- anions connect Cd（Ⅱ） ions to form two-dimensional metal-organic layers（Cd_2L_2）n,in which the 1D helical chains（Cd-L）_n are alternately arranged in a right-and left-handed sequence.These layers are further linked to build a 3D network by the bpa ligand.In addtion,photoluminescent properties for 1 are also investigated.

A Novel 3D Supramolecular Framework of Poly[(5-(oxidediphenylphosphino)isophthalate)zinc(Ⅱ)]: Syntheses and Structure

A novel metal-organic framework, namely [Zn（C20H13OsP）]n （1）, has been hydro- thermally synthesized through the reaction of 5-（oxidediphenylphosphino）isophthalic acid （H2L） with Zn（II） salt. The title compound crystallizes in monoclinic, space group P21/c with a = 11.0966（10）, b = 14.5651（14）, c = 14.7311（15） A, fl = 130.022（6）°, C2oH13OsPZn, Mr = 429.64, V= 1823.3（3） ./k3, Dc = 1.565 g/cm3, F（000） = 872, g = 1.463 mm＂1, S = 1.054 and Z = 4. The final R = 0.0270 and wR = 0.0739 for 2769 observed reflections with 1 〉 20（/）. In the title complex, the Zn2（CO2）2 binuclear clusters are linked by L2- ligands to result in a pillared layer structure in the bc plane, which is a （4,4）-net composed of helical chains with opposite chirality by sharing Zn2（CO2）2 units. Adjacent＇layers are further associated together through Zn-O bonds involving the metal center and the oxygen atom of P=O group to achieve a 3D architecture, in which one-dimensional qua＆angled channel displays the interweaving of two pairs of coaxial double-helical chains with opposite chirality. The luminescence property and thermogravimetric analysis of the title complex were investigated.

A Co(Ⅱ) Coordinated Polymer with 2-Fold Interpenetration 3D Architecture Based on 5-(Imidazol-1-ylmethyl)isophthalate: Hydrothermal Synthesis, Crystal Structure and Properties

One cobalt coordinated polymer with 2-fold parallel interpenetration 3D architecture based on flexible 5-（imidazol-1-ylmethyl）isophthalate （L2-） as a main ligand and 4,4＇-bipyridine （bpy） as a nitrogen-containing ancillary ligand, {[CoL（bpy）0.5（H2O）3]2}n （1）, has been obtained under hydrothermal conditions and characterized by elemental analysis, powder X-ray diffraction （PXRD）, IR spectra, Uv/vis spectra, thermal gravimetric analyses （TGA） and single-crystal X-ray diffraction. It crystallizes in monoclinic, space group C2/c with a = 26.323（4）, b = 14.696（2）, c = 26.630（4） A, β= 157.747（4）°, V = 3901.2（1） A3, Z = 8, Mr= 435.27, Dc = 1.480 g/cm3, /t= 0.923 mm^-1, Rint = 0.0900, F（000） = 1792, the final R= 0.0722 and wR = 0.0946 for 3641 observed reflections （I 〉 2tr（/））. Complex 1 exhibits a two-fold interpenetration 3D framework. As a single net of the 2-fold interpenetration structure, the L2- anion of complex 1, as a bridging ligand, connects the Co（Ⅱ） ion to form two-dimensional layers （Co3L3）n which are further linked to build a three-dimensional framework by bpy ligand.

5-异烟酰胺基异酞酸与含氮配体构筑的两个铜配合物：水热合成、晶体结构和磁性质研究(英文)

由水热法合成了2个铜配合物[Cu(INAIP)(bbi)].5H2O(1)和[Cu(INAIP)(phen)(H2O)].H2O(2)(H2INAIP=5-异烟酰胺基异酞酸,bbi=1,4-二咪唑基丁烷,phen=1,10-邻菲咯啉),并用元素分析、IR及X-射线单晶衍射等对其进行了表征。晶体结构分析结果表明:配合物1和2都属于单斜晶系,C2/c空间群。配合物1是由1,4-二咪唑基丁烷连接[Cu(INAIP)]一维链形成的二维双层结构,而配合物2是通过π-π堆积作用将[Cu(INAIP)]一维无限链延伸为二维结构,这2个化合物最终均被氢键拓展成三维超分子结构。在1.8～300 K温度范围内测试了配合物1和2的变温磁化率,结果表明配合物1中由羧基桥联的双核铜之间存在弱的反铁磁相互作用,而配合物2表现为顺磁性。

5-异烟酰胺基异酞酸构筑的钕化合物的合成、晶体结构和荧光性质（英文）

由水热法合成了钕化合物[Nd(HINAIP)(INAIP)(H2O)2]n·nH2O(1),(H2INAIP=5-异烟酰胺基异酞酸),并进行了元素分析、IR、TG及X-射线衍射法表征。晶体结构表明:配合物1属于三斜晶系,P1空间群。配合物1是由桥联配体5-异烟酰胺基异酞酸的羧基氧连接成二维层,此二维结构被氢键拓展成三维超分子结构。荧光光谱测试结果表明配合物1具有典型稀土钕的近红外荧光特征。

Synthesis of 5-[(2-hydroxynaphthalen-1-yl)diazenyl]isophthalic acid and its application to electrocatalytic oxidation and determination of adrenaline,paracetamol,and tryptophan

In this study,Au nanoparticles/poly 5-[（2-hydroxynaphthalen-l-yl）diazenyl]isophthalic acid film modified glassy carbon electrode（AuNPs/poly（NDI）/GCE） has shown excellent electrocatalytic activity toward the oxidation of adrenaline（ADR）,paracetamol（PAC）,and tryptophan（Trp）.The bare glassy carbon electrode（GCE） fails to separate the oxidation peak potentials of these molecules,while the poly（NDI） film modified electrode can resolve them.Electrochemical impedance spectroscopy（EIS）indicates that the charge transfer resistance of the bare electrode decreases as 5-[（2-hydroxynaphthalen-l-yl）diazenyl]isophthalic acid is electropolymerized on the bare electrode.Furthermore,EIS exhibits enhancement of electron transfer kinetics between analytes and the electrode after electrodeposition of Au nanoparticles.Differential pulse voltammetry results show that the electrocatalytic current increases linearly in the ranges of 0.01-680.0 μmol L^-1 for ADR,0.05-498.0 μmol L^-1 for PAC,and 3.0-632.0 μmol L^-1 for Trp;with detection limits（S/N = 3） of 0.009 μmol L^-1,0.005 μmol L^-1,and 0.09 μmol L^-1 for ADR,PAC,and Trp,respectively.The proposed method has been successfully applied for simultaneous determination of ADR,PAC,and Trp in biological samples.

三维Mn(Ⅱ)-Sm(Ⅲ)杂核和二维同核Sm(Ⅲ)配合物的合成、晶体结构与性质(英文)

利用过渡金属锰盐与稀土盐水热合成了杂核化合物{[Mn Sm2(INAIP)4(H2O)4]·2H2O}n(1)和同核{[Sm(INAIP)(HINAIP)]·2H2O}n(2)(INAIP=异烟酰胺吡啶基异酞酸根),并对其进行了元素分析、IR及X-射线衍射法表征。晶体结构研究表明:配合物1属于三斜晶系,P1空间群。晶胞参数:a=1.018 8(5)nm,b=1.083 86(6)nm,c=1.387 21(8)nm,V=1.475(14)nm3,Z=1,Dc=1.802 g·cm-3,μ=2.271 mm-1,F(000)=793,Rint=0.010 5,R1=0.051 2,w R2=0.131 9。配合物2属于单斜晶系,P21/c空间群。晶胞参数:a=1.343 05(18)nm,b=1.376 5(17)nm,c=1.62408(15)nm,V=2.7028(6)nm3,Z=4,Dc=1.861 g·cm-3,μ=2.251 mm-1,F(000)=1 500,Rint=0.051 4,R1=0.032 2,w R2=0.088 7。配合物1是由配体INAIP连接稀土钐离子形成二维层状结构,该二维层通过Mn-O和Mn-N键连接成三维非贯穿网络结构。而配合物2是由配体INAIP连接稀土钐离子形成二维双层状结构,该二维层通过氢键连接成三维网络结构。配合物1失去水分子后具有稳定微孔结构,对二氧化碳具有一定的吸附,而对氮气没有吸附作用。此外,配合物1和2具有典型的稀土钐离子红色荧光性能。

三维杂核Ni(Ⅱ)-Sm(Ⅱ)配合物的合成、晶体结构及性质研究(英文)

利用过渡金属镍盐、稀土盐与5-异烟酰胺吡啶基异酞酸水热合成了杂核化合物{[NiSm2(INAIP)4(H2O)4]·2H2O}n(1)(INAIP2-=异烟酰胺吡啶基异酞酸根),并对其进行了元素分析、IR及X-射线衍射法表征。晶体结构研究表明:配合物1属于三斜晶系,P-1空间群。配合物1是由配体异烟酰胺吡啶基异酞酸连接稀土钐离子形成二维层状结构,该二维层通过Ni-O和Ni-N键连接成三维非贯穿网络结构。配合物1脱水分子后具有稳定微孔结构,对二氧化碳具有一定吸附而对氮气无吸附作用。此外,配合物1还具有典型的稀土钐离子红色荧光性能。

A Novel 3D Cd-based Luminescence Metal-organic Framework: Synthesis, Structure and Luminescent Sensing Properties

A three-dimensional(3 D) Cd-based metal-organic framework(MOF), [Cd(H2 O)(PAA)]·(H2 O)2(complex 1) has been rationally designed and synthesized by using 4-(pyrimidin-5-yl)isophthalic acid(H2 PAA) and Cd(NO3)2·4 H2 O under solvothermal conditions. The structure has been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra, powder X-ray diffraction(PXRD) and thermogravimetric analyses(TGA). Single-crystal X-ray diffraction analyses reveal that complex 1 consists of a 3 D network with one-dimensional(1 D) channels. Moreover, 1 exhibits strong luminescent emission in solid state at room temperature. Fluorescence quenching was observed when treating complex 1 with picric acid(PA), 2,4-dinitrophenylhydrazine(2,4-DNPH) and p-nitroaniline(p-NA), revealing that the as-synthesized complex could be used as a luminescence sensor for the detection of PA, 2,4-DNPH and p-NA.

Construction of a New(4,8)-Connected Coordination Polymer Based on the Zinc Cluster:Structure,Topology,and Luminescence

The title complex, [Zn3（L）2（H2 O）2]n（1, H3 L = 5-（（3-formylphenoxy）methyl）isophthalic acid）, has been synthesized under hydrothermal conditions and structurally characterized by single-crystal X-ray diffraction, IR spectroscopy and thermogravimetric analysis. Compound 1 exhibits a 3D binodal（4,8）-connected net based on trinuclear [Zn3（COO）4] clusters with the topology symbol of（416·612）（44·62）2. It crystallizes in monoclinic system, space group P21/c, with a = 13.548（3）, b = 13.291（3）, c = 8.2750（1） ？, β = 97.08（3）°, V = 1478.7（6） ？3, Z = 2, Mr = 858.6 g/mol, Dc = 1.928 mg/m3, μ = 2.49 mm-1, F（000） = 864, GOOF = 1.12, the final R = 0.0457 and wR = 0.1329 for 4334 observed reflections with I 〉 2σ（I）. Additionally, the photoluminescent behaviours of 1 and H3 L have also been investigated in the solid state at room temperature.

Synthesis and Crystal Structure of a 2D Sm(Ⅲ) Coordination Polymer: {[Sm_2L_3(H_2O)_4]·(4,4?-bpy)·3H_2O}_n

A new compound, {[Sm^2L3（H2O）4]·（4,4＇-bpy）·3H2O}n（1, H2 L = 5-（3-pyridyl methoxy） isophthalic acid, 4,4＇-bpy = 4,4A-dipyridyl）, has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a = 11.266（2）, b = 15.530（3）, c = 16.711（3） A, α = 112.803（3）, β = 90.526（1）, γ = 94.006（3）°, V = 2686.6（9） A3, Z = 2, Dc = 1.727 g/cm^3, μ = 2.251 mm-1, F（000） = 1392, S = 0.999, the final R = 0.0296 and wR = 0.1058. In the title compound, two crystallographically independent Sm^3＋ cations are bridged by the carboxyl group of L2- ligands to form two different {Sm^2} binuclear subunits which are further connected by two distinct L2- ligands to shape a 1D chain, and such 1D chains are linked up to generate a 2D coordination polymer by another crystallographically unique L2- ligand. The thermogravimetric analysis and luminescent property of the title compound were also investigated.

以异烟酰胺吡啶基异酞酸为配体的二维铕配合物的合成、晶体结构和荧光性质(英文)

标题化合物{[Eu(L)(HL)].2H2O}n是由Eu(NO3)3.6H2O、5-异烟酰胺吡啶基异酞酸(H2L)、经水热反应得到。采用元素分析、IR及X-射线衍射法对该配合物进行了表征。晶体结构测试表明:晶体属于单斜晶系,空间群P21/c,晶胞参数为:a=1.34402(18)nm,b=1.377 50(18)nm,c=1.623 07(15)nm,β=115.820(8)°,V=2.704 9(6)nm3,Z=4,Mr=757.45,Dc=1.860 g.cm-3,μ=2.396 mm-1,F(000)=1 504,Rint=0.051 4,R1=0.032 2,wR2=0.089 1。配合物的中心铕离子是八配位稍变形的双帽三棱柱结构,5-异烟酰胺吡啶基异酞酸将配合物桥联成二维双层结构。

A Zn(Ⅱ) Coordination Polymer Based on a Flexible Symmetric Multicarboxylate Ligand

A novel coordination polymer, namely [Zn2（CAPA）（DMA）（H2O）]2n·n（H2O）（1,H4CAPA = 5-（bis（4-carboxybenzyl） amino） isophthalic acid, DMA = N,N-dimethylacetamide） has been synthesized through a solvothermal method and characterized by single-crystal X-ray diffraction, elemental analysis, infrared spectra, and thermogravimetric analyses. The crystal structure is of monoclinic, space group P21/n with a = 8.0585（5）, b = 18.9733（10）, c = 20.2044（14） A^°3, β = 101.144（7）°, V = 3030.9（3） ？~3, C56H54Zn4N4O21, Mr = 1378.58, Z = 2）. The compound forms a three-dimensional（3D） supramolecular framework by linking adjacent layers via hydrogen bonds and π···π interactions. It is interesting that the crystal structure is much related to the flexibility and configuration of the ligand. In addition, the thermal stability and luminescence properties for the compound have also been investigated.