非奇异单圈图的刻划

边数等于顶点个数的连通图称为单圈图.本文修正了文献[1]中关于奇异单圈图的充要条件,并且利用该条件证明了文献[2]中一个关于非奇异单圈图的猜想.     

TiO2形态结构与光催化活性关系的研究

本文介绍了TiO₂多相光催化剂的作用机理及其结构特性对光催化活性的影响,并对TiO₂的晶相组成、晶粒尺寸、比表面积、表面形态与光催化活性的关系作了综述。     

TiO2形态结构与光催化活性关系的研究

本文介绍了TiO2多相光催化剂的作用机理及其结构特性对光催化活性的影响，并对TiO2的品相组成、品粒尺寸、比表面积、表面形态与光催化活性的关系作了综述。     

配合[Cu(o-ABA)2(2,2''-bipy)]·(H2O)的水热合成、晶体结构及电化学性质

铜是生物体内重要的微量元素,广泛地存在于动物、植物和微生物体内,并且通常与生物配体形成稳定的混配配合物,在生命过程中(酶的催化、物质的储存和运送以及铜离子的转运等)起着极其重要的作用,因此研究铜生物配体配合物对探索铜在生物体内的作用机制有重要意义[1～3].     

[Cu(PTA)(Phen)2](p-MBA)(H6O)配合物的合成、晶体结构及电化学分析

The crystal structure of the title complex with the stoichiometric formula [Cu(PTA)(Phen)₂](p-MBA)(H₆O) (Phen=1,10-phenanthroline, PTA=terephthalic acid, p-MBA=p-toluic acid) has been determined by single-crystal X-ray diffraction. The crystal (C₄₈H₄₀CuN₄O₁₀, M_r=896.38) belongs to the monoclinic space group C2/c, with the following crystallographic parameters: a=1.778 6(3) nm, b=1.912 5(3) nm, c=1.389 9(2) nm, β=114.686(2)°, V=4.295 7(12) nm³, D_c=1.386 g·cm^-3, Z=4, μ(Mo Kα)=0.574 mm^-1, F(000)=1 860, final GooF=1.019, R=0.054 0, wR=0.148 3 for 2 644 observed reflections (I>2σ(I)). The crystal structure shows that the copper(Ⅱ) ion is coordinated with two oxygen atoms from one terephthalic acid molecule and four nitrogen atoms from two 1,10-phenanthroline molecules, forming a distorted octahedral coordination geometry. The cyclic voltametric behavior of the complex is also reported. CCDC: 298809.     

配合物[Cu2(m-MBA)4(2，2′-bipy)2(H2O)]·H2O的水热合成、晶体结构及电化学分析

A copper(Ⅱ) complex [Cu₂(m-MBA)₄(2，2′-bipy)₂(H₂O)]·H₂O with m-methylbenzoic acid (m-MBA), 2,2′-bipyridine (2,2′-bipy) and water molecule has been synthesized by means of hydrothermal way and characterized. Crystal data for this complex: monoclinic, space group C2/c, a=2.591 8(5) nm, b=1.414 2(3) nm, c=1.790 8(4) nm, β=131.80(3)°, V=4.893 3(17) nm³, D_c=1.379 g·cm^-3, Z=4, F(000)=2 104 , Final GooF=1.034, R₁=0.065 6, wR₂=0.197 6. The crystal structure shows that two neighboring copper(Ⅱ) ions are linked together by two bridging-chelating m-methylbenzoic acid groups, one bridging water molecule, forming a cage structure and the Cu(Ⅱ)-Cu(Ⅱ) bond distance is 0.366 7 nm. Each copper(Ⅱ) ion is coordinated with two nitrogen atoms of one 2,2′-bipyridine molecule and four oxygen atoms from three m-methylbenzoic acid molecules and one water molecule, repectiveley, forming a distorted octahedral coordination geometry. The cyclic voltammetric behavior of the Complex was also investigated. CCDC: 648619.     

配合物[Cu2（m-MBA）4（2,2′-bipy）2（H2O）]·H2O的水热合成、晶体结构及电化学分析

铜是重要的生命元素,它与有机酸形成的配合物广泛存在于生命体系中,对生命体系有着特殊的生物活性和催化作用,而且在某些生物化学过程     

配合物[Cu2(phen)2](SiW12O40)(H2O)7的合成、晶体结构及电化学分析

The title complex has been synthesized by the reaction of silicotungstic acid, 1,10-phenanthroline (phen) monohydrate and cupric acetate. The crystal structure belongs to triclinic system, space group P1 with a=1.158 46(15) nm, b=1.658 8(2) nm, c=1.664 4(2) nm, α=82.090(2)°, β=76.001(2)°, γ=86.531(2)°, and V=3.072 6(7) nm³, D_c=3.887 g·cm^-3, Z=2, F(000)=3 196. R₁=0.086 7, wR₂=0.185 8. The structure shows that the copper(Ⅱ) atom is coordinated with two nitrogen atoms from the one phen and three oxgygen atoms from three water, forming a distorted square-pyramid configuration The cyclic voltametric behavior of the complex is also reported. CCDC: 298807.     

一维链状钴配位聚合物Co（α-Furoic acid）2（4,4'-bipy)2(H2O)2的结构及电化学性质

在甲醇和水的混合溶剂中用呋喃甲酸、4,4'-联吡啶和碳酸钴合成了一种新型配位聚合物[Co(α-Furoic acid)2(4,4'-bipy)2 (H2O)2]. 该配合物晶体属三斜晶系,空间群P 1,晶胞参数a=1.138 4(4),b=1.138 4(4),c=1.302 9(9) nm;γ=120.0°,V=1.462 3(12) nm3,Dc=1.612 g/cm3,Z=3,F(000)=729. 最终偏离因子R1=0.049 0,wR2=0.143 6. 晶体中钴原子与2个bipy的2个N原子及2个呋喃甲酸根的2个氧原子配位及2个水分子的2个氧原子配位,形成六配位的变形八面体结构,结合晶体结构进行了电化学性质研究. 结果表明,电极反应中电子转移是准可逆的,配合物稳定性好.