A new complex has been synthesized by the reaction of CuBr and 1,4-bis（2-allyl-2 H-tetrazol-5-yl）benzene. The crystal structure of the resulting complex, [Cu3（1,4-bis（2-allyl-2 H-tetrazol-5-yl）benzene）Br3]n（1）, has been determined by single-crystal X-ray diffraction analysis. Complex 1 is of monoclinic system, space group P21/c with a = 10.983（7）, b = 6.294（4）, c = 17.606（10） ?, β = 102.465（6）°, V = 1188.4（3） ?3 and Mr = 577.52. Structural analyses revealed complex 1 shows a three-dimensional（3 D） framework. The thermal stability and luminescent properties of the complex are also investigated.
Two metal-organic coordination complexes, [Zn（2,6-ndc）（1,2-bix）]n（1） and [Zn（2,6-ndc）（1,3-bix）]n（2）（2,6-H2ndc = 2,6-naphthalenedicarboxylic acid, 1,2-bix = 1,2-bis（imidazole-1-ylmethyl）-benzene and 1,3-bix = 1,3-bis（imidazole-1-ylmethyl）-benzene） have been synthesized by the hydrothermal method. Though the two complexes both crystallize in a triclinic system, space group P1 and show similar two-dimensional structures, weak intermolecular interactions（π-π packing interactions） only exist in complex 2. They are characterized by single-crystal X-ray diffraction analysis, fluorescence measurement, IR spectroscopy and TGA. Moreover, the solid-state fluorescence spectra of two complexes show maximal emission peaks at 365（λ（ex） = 329 nm） and 367 nm（λex = 344 nm）, respectively.
Under hydrothermal conditions, 2-（pyridin-4-yl）-lH-imidazole-4,5-dicarboxylaic acid （H3PIDC） reacted with Gd（NO3）3 to give a 3D complex {[Gd（HPIDC）＇a-C204）0.5＂H20]＂ 2H20}n （1）. Single-crystal X-ray determination shows that complex 1 crystallizes in the monoclinic system, space group P21/c with a = 8.287（8）, b = 14.796（14）, c = 11.559（11） ]k, fl = 90.969（15）, Z = 4, V = 1417（2） A3, C11H11GdN3Og, Dc = 2.280 g/cm3, Mr = 486.48, 2（MoKa） = 0.71073 A, p = 4.738 mm-1, F（000） = 936, R = 0.0248 and wR = 0.0522. Dielectric constant of complex 1 was measured at different frequencies with temperature variation.
A new Gd coordination polymer based on 2-（pyridin-4-yl）-I H-imidazole-4,5-dicarboxylate （H3PIDC） has been synthesized under hydrothermal conditions, formulated as {[Gd3（HPIDC）3（PIDC）（H2O）4].3H2O}n （1）. The compound crystallizes in the monoclinic system, space group C2/c with a=20.951（7）, b = 9.515（3）, c = 27.483（10） A,β= 106.176（6）°, Z = 4, V= 5262（3） A3, C40 H45 Gd3 N12 O30, Dc = 2.071 g/cm3, Mr=1645.63, λ （MoKa）=0.71073A, μ=3.846mm-1, F（000）=3204, the final R=0.0390 and wR= 0.1332. Complex 1 is a two-dimensional MOF built up from T-shaped 3-connected HPIDC2 , PIDC3 and 4-connected metal nodes. Dielectric constant of complex 1 was measured at different frequencies with temperature variation.
利用复合共沉积法,在涂有中间层SnO2-Sb2O5的Ti基体上制备了PbO2+nano-WO3复合电极材料.采用X射线衍射(XRD)、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)和双电层电容法等对复合电极表面的组成、结构、形貌及有效电化学面积进行测试.结果表明,随着纳米WO3掺杂量逐渐增大,复合电极的表面粗糙度和孔隙率逐渐变大,电化学有效面积也随之增大;利用线性扫描及Tafel曲线等电化学测试方法研究了nano-WO3的掺杂对复合电极析氧活性的影响,结果表明,掺杂nano-WO3的复合电极较纯PbO2电极的析氧活性大幅提高,其起始析氧电位发生负移,析氧过电位下降,最大可降低近300 m V.
Two novel metal-organic coordination compounds with molecular structures of {[Co（TMBC）4Cl2]·2H2O}（1） and {[Ni（TMBC）4Cl2]·2H2O}（2）（TMBC = 4＇-（（1H-1,2,4-triazol-1-yl）methyl）-[1,1＇-biphenyl]-2-carbonitrile）, have been synthesized under hydrothermal conditions of Co Cl2·6H2O and Ni Cl2·6H2O with 4＇-（（1H-1,2,4-triazol-1-yl）methyl）-[1,1＇-biphenyl]-2-carbonitrile, respectively. Both compounds crystallize in triclinic systems, space group P 1. They are characterized by single-crystal X-ray diffraction analysis, elemental analysis, IR spectroscopy and TGA. Moreover, their electrochemical behaviors have also been studied in different electrolyte solutions, respectively.
A new series of 11-pyridyl substituted dibenzo-diazepin-l-one derivatives 1 was synthesized by a two step cyclocondensation reaction. All the compounds were characterized by IR, MS, and H NMR. And crystals of la and lb were obtained and determined by X-ray single-crystal diffraction. Crystal data of la： C48H52N607, monoclinic system, space group C2/c, a = 28.39（4）, b = 9.275（12）, c = 16.84（2） A, β = 104.98（3）°, V= 4284（10） A3, Z= 4, F（000） = 1752, Dc = 1.279 g/cm3, R = 0.0603, and wR = 0.1314. Crystal data of 1b： C24H21N30, monoclinic system, space group P21/c, a = 11.625（5）, b = 19.055（9）, c = 8.741（4） A, fl = 95.547（6）°, V= 1927.2（15） A3, Z = 4, F（000） = 776, Dc = 1.266 g/cm3, R = 0.0494, and wR = 0.1287.
Two novel coordination polymers with molecular structures（2MI）＋[Zn（2MI）Cl3]-（1） and（2MI）＋NO3-（2） based on ligand 2-methylimidazole（2MI） were synthesized under solution method. Compound 1 crystallizes in the monoclinic system, space group Cc with a=7.489（2）, b=13.448（4）, c=13.983（4） , β=98.402（2）°, Z=4 and V=102.246（2） 3. Compound 2 crystallizes in the orthorhombic system, space group pnma with a=14.296（3）, b=6.3180（12）, c=7.3862（13） , β=90°, Z=4 and V=667.1（2） 3. Dielectric measurements show compounds 1 and 2 have reversible dielectric anomalous behaviors with variation frequencies at different temperature.
