Synthesis and Characterization of a Novel Perfluorinated Ionomer Polymer Containing Sulfonimide Functionality

The novel perfluorinated vinyl ether containing sulfonimide functionality CF2 = CFORfSO2NHSO2CF3 was synthesized by multiple reaction steps. It could be copolymerized with tetrafluoroethylene by radox initiator to give a novel perfluorinated ionomer polymer. Its physical and chemical properties were studied.     

Synthesis,Structure and Characterization of a Cd（Ⅱ） Polymer Based on 6-Hydroxynicotinic Acid

A new 2D layered Cd（Ⅱ） coordination polymer, [Cd（HnicO）（phen）（NOa）]n 1 （H2nicO = 6-hydroxynicotinic acid, phen = 1,10-phenanthroline）, has been hydrothermally synthesized and characterized by elemental analysis, IR, and single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P21/c with a = 11.1107（2）, b = 13.7639（2）, c = 12.1457（4）A, β = 108.695（1）°, V = 1759.40（7） A^3 Z = 4, Mr= 492.72, F（000） = 976, Dc = 1.860 g/cm^3,μ= 1.289 mm^-1, the final R = 0.0205 and wR = 0.0550 for 3663 observed reflections （I 〉 2σ（I））. X-ray single-crystal structural analyses reveal that in complex 1, the HEnicO ligands and Cd（Ⅱ） nodes define the structure to be （4,4） 2D nets which are further assembled into the final 3D architecture via supramolecular interactions such as hydrogen bonds and aromatic interactions. Moreover, the solid-state luminescent study shows the title polymer possesses intense luminescent property at room temperature.     

Synthesis, Structure and Fluorescent Pr.operty of a Novel 2-D Sheet Inorganicorganic Hybrid Cadmium Polymer [CdBr2（bpdo）]n

A novel 2-D sheet inorganic-organic hybrid cadmium polymer,[CdBr2(bpdo)]n (bpdo=N,N'-O,O-4,4'-bipyridine) has been hydrothermally synthesized and characterized by elemental analysis,IR and single-crystal X-ray diffraction. The crystal crystallizes in monoclinic,space group C2/c,with a=16.336(3),b=3.9904(5),c=18.479(3),β=91.640(6)°,Mr= 460.40,V=1204.1(3)3,Z=4,Dc=2.540 g/cm3,μ=8.439 mm-1,F(000)=864,R=0.0314 and wR=0.0733 for 1069 observed reflections (I > 2σ(I)). X-ray diffraction reveals that the title compound consists of the 2-D inorganic-organic hybrid sheet constructed from [CdBr2]n chains and bpdo bridges in the packing motif of…ABAB….The title compound exhibits intense blue photoluminescence in the solid state at room temperature.     

Synthesis and Crystal Structure of a Novel Cobalt（Ⅱ） Coordination Polymer with 1,2,4,5-Benzenetetracarboxylate

A novel cobalt（II） coordination polymer,[Co（BTEC）1/2]n 1,has been synthesized with Co（NO3）2·6H2O and 1,2,4,5-benzenetetracarboxylic acid （H4BTEC） by the hydrothermal method,and characterized by elemental analysis,IR and single-crystal X-ray diffraction. Crystallographic data for 1： C5HO4Co,Mr = 183.99,monoclinic,space group C2/c,a = 16.619（6）,b = 7.416（3）,c = 8.040（3）A,β = 90.612（4）°,V = 990.8（6） A^3,Z = 8,Dc = 2.467 g/cm^3,μ = 3.390 mm^-1,F（000） = 720,R = 0.0307 and wR = 0.0847 for 912 observed reflections （I 〉 2σ（I））. X-ray crystal structural analysis revealed that each Co（II） adopts a tetrahedral coordination mode to link four separate BTEC ligands via uniform monodentate carboxylate groups and each BTEC ligand possesses an 8-connected geometry to connect eight Co（II） ions. Complex 1 exhibits a rare （4,8）-connected net with （45.6）2（410.614.84） topology.     

Synthesis,Crystal Structure and Blue Photoluminescence of a Metal-organic Framework Constructed from Triangular [Zn3（μ3-OH）] Clusters with Bis（tetrazole）amine Ligands

A new metal-organic framework, {Zn[Zn3（BTA）3（μ3-OH）（H2O）3]2}n 1, has been synthesized under hydrothermal reaction of ZnCl2 and bis（5-tetrazolyl）amine （H2BTA）, and characterized by elemental analysis, FT-IR, Raman spectrum, X-ray single-crystal diffraction, TGA and photoluminescence measurements. Compound 1 crystallizes in the trigonal system, space group P-3cl, a = 13.667（3）, c = 12.981（3） A, V = 2099.6（8） A3 and Z = 2. The BTA2- ligand in 1 assumes theμ3 tetradentate mode with both 1,2- and 1,4-tetrazole bridges, generating an unusual 2-D layer, in which the [Zn3（μ3-OH）] triangular motifs act as three-connecting nodes and the mononuclear Zn atoms as six-connecting nodes that are inter-linked by organic ligands. Adjacent 2-D metal-organic layers are linked by strong hydrogen bonds to form a novel 3-D supramolecular framework. Complex 1 exhibits blue fluorescence emission in the solid state at ambient temperature.     

Hydrothermal Synthesis and Crystal Structure of a Novel Binuclear Cd（ Ⅱ ） Coordination Polymer Based on 1,2-Benzenedicarboxylate and Imidazole

The hydrothermal reaction of Cd（OAc）2.H2O with 1,2-benzenedicarboxylate （1,2-BDC）, imidazole and H2O resulted in the formation of a binuclear polymeric Cd（ Ⅱ ） complex {[Cd2（1,2-BDC）2（Im）4].（H2O）}n which was then characterized by elemental analyses and single-crystal X-ray diffraction analysis. The crystal is of monoclinic system, space group P21/c with a = 14.6455（3）, b = 9.3530（2）, c = 23.7838（5）A, β= 106.6290（10）°, Cl12H104CdgN32O36, Mr = 3373.47, V = 3121.64（11）A^3, Dc = 1.795 g/cm^3, F（000） = 1672,μ= 1.428 cm^-1 and Z = 1. The final R = 0.0316 and wR = 0.0687 for 5045 reflections with I 〉 2σ（I）. In the title complex, the two Cd（ Ⅱ） ions are in different coordination environments with distorted octahedral and pengonal bipyramidal geometries, respectively. Two Cd polyhedra are linked together through one μ2-η^1：η^1 and one μ2-η^1：η^1 carboxylate groups from different 1,2-BDC ligands, giving rise to a binuclear Cd（ Ⅱ ） cluster, and such clusters are connected by bridged 1,2-BDC ligands to form a 2-D structure along the c axis. The inter- and intermolecular hydrogen bonds further connect the 2-D structures into a 3-D supramolecular network.     

Synthesis and Characterization of a Novel 3D Coordination Polymer Based on Cu（II） Cations and Mellitic Acid

A new mellitate complex [Cu3（μ2-mellitate）（μ2-H2O）（H2O）2·H2O]n 1 has been synthesized by the reaction of mellitic acid and Cu（CH3COO）2·H2O in the presence of base. Crystallographic data for 1： C12H8O16Cu3, Mr = 598.80, orthorhombic, Pbcn, a = 8.4378（6）, b = 10.0396（7）, c = 17.6799（12）A, V = 1497.70（18）A^3, Z = 4, De = 2.656 g/cm^3, μ = 4.327 mm^-1, F（000） = 1180, R = 0.0431 and wR = 0.0964 for 1075 observed reflections （I 〉 2σ（I））. X-ray crystal structural analysis revealed that the mellitate anions behave as the bridging ligands and link eight copper atoms repeatedly to form a novel three-dimensional metal-organic coordination polymer with two different rhombic tunnels in the solid-state structure.     

Synthesis, Characterization and Two-Photon Absorption Properties of a Novel Pyridinium Salt

A novel pyridinium salt, 2,4-bis[p-(N,N-dimethylamino)styryll-N-metlayl pyridinium iodide (BMSPI) was synthesized and characterized by TG, ^1H NMR spectroscopy and elemental analysis, and the reaction process was studied by using ES-MS. When BMSPI was pumped by a pulsed 1064 nm, 50 ps laser beam, it manifests highly efficient TPA (Two-Photon Absorption) and up-conversion superradiance. The up-conversion efficiency was 6.0% at the pump energy of 4-6 mJ and the lifetime of two-photon fluorescence was measured as 59 ps.     

Synthesis and Crystal Structure of a Novel 1D Mercury（II） Iodide Coordination Polymer Containing 40-Membered Macrocycle

A mercury coordination polymer [Hg3(TizT)2I6]n (Mr = 1921.72, TizT = 2,4,6- tri(imidazole-1-yl)-1,3,5-triazine) containing a 40-membered macrocycle which was constructed by four TizT ligands and four mercury(II) iodide molecules had been synthesized by the reaction of HgI2 with TizT. The complex was characterized by elemental analysis, FT-IR, 1H NMR spectra and X-ray crystallography. The crystal of the complex belongs to the monoclinic system and C2/c space group with a = 35.840(5), b = 8.169(5), c = 14.980(5) , β = 104.466(5)°, Z = 4, V = 4247(3) 3, Dc = 3.006 g·cm-3, μ = 15.223 mm-1, F(000) = 3384, Rint = 0.0504, wR = 0.0833 and constructs a chair-like conformation of cyclohexane one by one, which forms a 1-D polymer through the fashion of fused ring aromatic hydrocarbon. The hydrogen bonds and π-π interactions shape the 2-D network structure. The two compounds excited weak fluorescence.     

Synthesis and Crystal Structure of a Novel Ca(Ⅱ) Coordination Polymer Containing Dipyridine Dicarboxylic Ligand

The novel alkaline metal complex Ca(BPDCH)2(1, BPDCH2 = 2,2'-bipyridine-5,5'-dicarboxylic acid) has been synthesized by the hydrothermal reaction of Ca(NO3)2·4H2O with 2,2'-bipyridine-5,5'-dicarboxylic acid. The molecular and crystal structures of complex 1 have firstly been characterized by FTIR, elemental analysis, and X-ray single-crystal diffraction. The 3D MOF structure of complex 1 was interpreted by the versatile binding modes-the intermolecular hydrogen bonds and π-π stacking interactions of 2,2'-bipyridine-5,5'-dicarboxylic acid ligand. The analysis results show complex 1 belongs to a coordination polymer with 3D MOF structure. The results of thermogravimetric analysis and solubility demonstrate complex 1 is a thermostable compound and does not dissolve in water and traditional organic solvents.     

Synthesis of Two Blue-light-emitting Complexes with Schiff Base Calixarene as the Ligand

Two new blue luminescent zinc and beryllium complexes with Schiff base calixarene derivative as the ligand were prepared.Their luminescent properties were determined,which indicated that they had strong blue fluorescent properties.They also had good solubility and film formation.These new complexes can be used as blue organic electroluminescent materials (OELMs) in organic electroluminescent devices.     

A Novel Greenish Blue‐emitting Amorphous Molecular Material: 2,5‐Bis {4‐[2‐naphthyl (phenyl) amino ] phenyl} thiophene

A novel greenish blue‐emitting amorphous molecular material, 2,5‐bis{4‐[2‐naphthyl(phenyl)amino]phenyl thiophene (BN‐pA‐1T), was designed and synthesized. Its molecular properties, glass‐forming property, and application to an organic EL device were investigated.     

新型4-羟基香豆素衍生物的合成

以DMSO为溶剂,碳酸二乙酯为酰化试剂,4-取代-2-羟基苯乙酮在氢化钠的催化下,经一步反应合成了7个新型的7-取代-4-羟基香豆素,产率49%~90%,其结构经1H NMR表征。     

基于香豆素衍生物的新型绿色/红色磷光有机电致发光主体材料的设计、合成及性能表征

设计并合成了一种新型的香豆素衍生物,3,3-’(1,3-苯基)双(7-乙氧基-4-甲基香豆素)(mEMCB),并系统地对该香豆素衍生物进行了结构表征、光物理性能、热物理性能及电化学性能的研究.mEMCB具有较高的三重态能级(2.42eV),可敏化绿色、红色磷光掺杂材料.同时,mEMCB还具有较好的热稳定性(T_g:79.72℃,T_d:361.49℃),其T_g明显高于目前广泛使用的磷光主体材料CBP.研究结果表明,mEMCB是一个潜在的可以用于绿色和红色磷光有机电致发光器件的主体材料.     

4-羟基香豆素衍生物的荧光性能

4-羟基香豆素衍生物的荧光性能;水杨酸; 羟基香豆素衍生物; 荧光     

2,2'-双氨基苯氧基二硫化物及其聚合物的合成研究

在不同的锂或锂离子二次电池正极材料中 ,新型的聚有机二硫化物有可能成为最有应用前景的电池正极材料之一 [1] ,Visco等 [2 ]首次提出利用二硫化物中双硫键的断裂与再接 (即电聚合与电解聚 )化学性能应用于锂二次电池的充放电 .目前 ,对有代表性的有机二硫化物 2 ,5 -二巯基 -1 ,3 ,4-噻二唑(DMc T)进行了大量的研究[3～ 5] ,最近又提出通过合成新的聚有机二硫化物来提高其电化学性能[6 ,7] .为了得到一种新型高电化学活性和高导电性的锂或锂离子二次电池正极材料 ,本文通过化学方法合成2 ,2 -双氨基苯氧基二硫化物 (DAPD)单体 ,并通…     

香豆素类铝离子荧光化学传感器的合成及性能

为了方便快捷地检测铝离子,本文以7-羟基香豆素为原料合成了铝离子荧光化学传感器。 通过质谱、核磁共振谱、紫外可见分光光度计等技术手段研究了传感器的结构和性能。 结果表明,该传感器对铝离子有很好的选择性,其检出限为8.5×10^-8 mol/L,其识别过程具有可逆性,同时,Job's plot曲线表明二者形成配位比为1:1的稳定配合物。 该研究对生物体及环境领域中铝离子的实时监测具有潜在的应用价值。     

香豆素分子模板聚合物的合成与性能研究

以香豆素为模板分子, α-甲基丙烯酸(MAA)、丙烯酰胺(MA)、2-乙烯基吡啶(2-VP)和4-乙烯基吡啶(4-VP)为功能单体, 二甲基丙烯酸乙二醇酯(EGDMA)为交联剂, 利用分子模板技术分别在甲苯、甲醇、氯仿和乙腈溶剂中合成了一系列香豆素分子模板聚合物(MTP), 研究了聚合体系组成对模板聚合物吸附特性的影响. 结果表明, 在所合成的模板聚合物中, 以MAA为功能单体, 乙腈为致孔溶剂, 以1∶4∶30的摩尔比加入模板分子、MAA及EGDMA时制备的模板聚合物吸附容量高、印迹效果和选择性好. 此模板聚合物有作为白芷样品中香豆素吸附分离材料的应用前景.     

Synthesis and Color-tunable Fluorescence Properties of Schiff Base Zinc （II） Complexes Used as Electroluminescent Materials

Four kinds of bis(N-alkylsalicylaldiminato) zinc(ll) complexes were synthesized, and their molecular structures were determined by FT-IR and elemental analysis. Their photoluminescence properties were determined, which indicated that they could emit strong fluorescence varying from blue to yellow to reddish orange depending on their different molecular structures. They had good thermostability, solubility and film forming capability, and can be used as organic electroluminescent materials. These new complexes may afford the feasibility to realize full-color display with materials based on similar molecular structures.     

Synthesis of Pyrazolines Used as Blue Organic Electroluminescence Materials

SinceTangetaldevelopedanoveltWo-layerorganicelectr0luminescentdevice(OELD)inl987successfully',OELDhasattractedmuchinterestall0verthew0rId.ltisregardedas"havingbr0ughtthethirdrev0luti0ntoflatpaneldisplay"',becauseithass0manyadvantagessuperiort0CathodeRayTube(CRT)andLiquidCrystalDevice(LCD).Ithasl0wdrivenvoltage(lO0,000cd/m=),highluminescentefficiency(l5lIn/w),goodstability(50,000h),andithassimplestructureandiseasytofabricate'.ComparedtoinorganicELD,OELDiseasie…