含有1,4,7-三苄基-1,4,7-三氮杂环壬烷的两个双核铜配合物的合成、表征及其与DNA的相互作用

合成了2个含有1,4,7-三苄基-1,4,7-三氮杂环壬烷（Bn₃tacn）的双核铜配合物：[Cu₂（Bn₃tacn）₂（m-bdc）（CH₃CN）₃（H₂O）₂]ClO₄（1）和[Cu₂（Bn₃tacn）₂（OH）₂]（ClO₄）₂（2）。配合物1由间苯二甲酸采取单双齿方式桥连Cu（Ⅱ）离子,配合物2由OH桥连。配合物1和2晶体均属于单斜晶系,分别为P2₁/c空间群和C2/c空间群。分别对2个配合物进行了红外光谱、紫外-可见光谱和元素分析表征。研究了配合物1与DNA的相互作用,对配合物2进行了循环伏安测试。     

含有1,4,7-三苄基-1,4,7-三氮杂环壬烷的两个双核铜配合物的合成、表征及其与DNA的相互作用

合成了2个含有1,4,7-三苄基-1,4,7-三氮杂环壬烷（Bn₃tacn）的双核铜配合物：[Cu₂（Bn₃tacn）₂（m-bdc）（CH₃CN）₃（H₂O）₂]ClO₄（1）和[Cu₂（Bn₃tacn）₂（OH）₂]（ClO₄）₂（2）。配合物1由间苯二甲酸采取单双齿方式桥连Cu（Ⅱ）离子,配合物2由OH桥连。配合物1和2晶体均属于单斜晶系,分别为P2₁/c空间群和C2/c空间群。分别对2个配合物进行了红外光谱、紫外-可见光谱和元素分析表征。研究了配合物1与DNA的相互作用,对配合物2进行了循环伏安测试。     

基于5-氨基-1H-1,2,4-三唑-3-羧酸的锌(Ⅱ)/锰(Ⅱ)配合物的合成、晶体结构及性质

以5-氨基-1H-1,2,4-三唑-3-羧酸（HAtca）为配体,通过水热法和溶液扩散法分别合成了2个新的配合物[Zn（Athy） Br]_n（1,HAthy=5-氨基-1H-1,2,4-三唑-3-醇）和[Mn（Atca）₂（H₂O）₂]（2）。单晶结构分析表明配合物1和2分别属于正交和单斜晶系,结晶于Pbca和P2₁/c空间群。配合物1为2D层状结构,2是单核配合物。在配合物1中不存在氢键,而配合物2中含有丰富的氢键作用,并且通过氢键的作用形成了一个三维的网格结构。同时在固态下,配合物1和2分别在360、462 nm和382、402 nm处有较强的荧光发射峰。     

基于酰腙类Schiff碱的锌和镉配合物的合成、晶体结构和性质

采用溶剂挥发法合成了配合物[M（HBrsth）₂]（M=Zn（1）,Cd（2）,H₂Brsth=5-溴水杨醛缩噻吩-2-甲酰腙）和配合物[Cd（L）₂]（3,HL=2-乙酰基吡啶缩异烟酰腙）,并经元素分析、红外光谱、紫外光谱和热重分析等对它们进行了表征。用X射线单晶衍射分析确定了配合物1和3的晶体结构,1属单斜晶系,C2/c空间群,呈现一维链状配位聚合结构;3属正交晶系,C2cb空间群。用MTT法测试了配合物对人肝肿瘤细胞HEPG2和人结肠癌细胞SW620的增殖抑制作用。还研究了配合物的发光性质。     

基于自由基配体的Dy(Ⅲ)配合物的设计、合成、结构及磁性

以氮氧自由基为配体,合成了2例未见文献报道的氮氧自由基-稀土配合物[Dy（hfac）₃（NIT-C₃H₅）（H₂O）]与[Dy（hfac）₃（NIT-C₃H₅）]_n（hfac=六氟乙酰丙酮,NIT-C₃H₅=2-环丙烷基-4,4,5,5-四甲基-2-咪唑啉-3-氧化-1-氧基自由基）。单晶结构分析表明配合物1为单核结构,单斜晶系P2₁/c空间群;配合物2为一维结构,单斜晶系P2₁/c空间群。交流磁化率测试结果表明配合物2虚部表现出频率依赖,这表明配合物2是单链磁体。     

基于自由基配体的Dy(Ⅲ)配合物的设计、合成、结构及磁性

以氮氧自由基为配体,合成了2例未见文献报道的氮氧自由基-稀土配合物[Dy（hfac）₃（NIT-C₃H₅）（H₂O）]与[Dy（hfac）₃（NIT-C₃H₅）]_n（hfac=六氟乙酰丙酮,NIT-C₃H₅=2-环丙烷基-4,4,5,5-四甲基-2-咪唑啉-3-氧化-1-氧基自由基）。单晶结构分析表明配合物1为单核结构,单斜晶系P2₁/c空间群;配合物2为一维结构,单斜晶系P2₁/c空间群。交流磁化率测试结果表明配合物2虚部表现出频率依赖,这表明配合物2是单链磁体。     

基于反-双(β-二酮)-1,4-环己二胺的席夫碱Hg(II)配位聚合物的合成与晶体结构

合成了反1,4-环己二胺桥联β-二酮的席夫碱配体L1（反-双（乙酰丙酮）-1,4-环己二胺）和L2（反-双（苯甲酰丙酮）-1,4-环己二胺）,然后将配体L1和L2分别与HgCl₂、HgI₂进行配位反应,得到4个Hg（Ⅱ）配合物：[Hg₂（L1）Cl₄]_n（1）,{[Hg₂（L2）Cl₄]·L2}_n（2）,[Hg₂（L1）I₄]_n（3）,[Hg₂（L2）I₄]_n（4）。并通过元素分析、红外光谱、粉末衍射、单晶X射线衍射等对配合物的结构进行了表征。在固体状态下,配合物1和2的Hg（Ⅱ）离子与配体中的γ-C原子及3个氯离子配位形成1D链结构,配合物3的Hg（Ⅱ）离子与L1配体中的烯醇式氧原子,以及3个碘离子配位形成2D网状结构,配合物4的Hg（Ⅱ）离子与配体L2中的烯醇式氧原子及3个碘离子配位形成1D链结构。     

吡唑-3-甲酸Cu(Ⅱ)/Mn(Ⅱ)配合物的合成、表征及常压下对二氧化碳催化转化

合成和表征了2个吡唑-3-甲酸过渡金属配合物[Cu₂（pca）₂（H₂O）₆]·2H₂O（1）,[Mn（Hpca）₂（phen）]·3H₂O（2）（H₂pca=吡唑-3-甲酸;phen=菲咯啉）。X射线单晶衍射分析结果表明,配合物1属于单斜晶系P2₁/n空间群,它是一个畸变八面体的双核铜配合物;配合物2是一个畸变八面体的单核锰配合物。配合物1和2分别通过分子间的O-H…O,N-H…O氢键形成了三维网状结构。配合物1在二氧化碳的环加成反应中显示出了良好的催化效率（转化率高达97.4%;选择性高达98.9%）。     

基于3-氨基-1，2，4三唑-5-甲酸的锌(Ⅱ)/锰(Ⅱ)配合物的合成、晶体结构及性质

以3-氨基-1,2,4三唑-5-甲酸（HAtca）为配体,通过水热法和溶液扩散法分别设计合成了2个结构新颖的配合物[Zn（Athy）Br]_n（1,HAthy=3-氨基-5-羟基-1,2,4三唑）和[Mn（Atca）₂（H₂O）₂]（2）。单晶结构分析表明配合物1和2分别属于正交和单斜晶系,结晶于Pbca和P2₁/c空间群。配合物1为2D层状结构,配合物2是单核配合物。在配合物1中不存在氢键,而配合物2中含有丰富的氢键作用,并且通过氢键的作用形成了3D网格结构。在固态下,配合物1和2分别在360,462 nm和382,402 nm处显示有较强的荧光发射,且配合物2较1有60 nm的蓝移。     

基于反-双(β-二酮)-1,4-环己二胺的席夫碱Hg(Ⅱ)配位聚合物的合成与晶体结构

合成了反1,4-环己二胺桥联β-二酮的席夫碱配体L1（反-双（乙酰丙酮）-1,4-环己二胺）和L2（反-双（苯甲酰丙酮）-1,4-环己二胺）,然后将配体L1和L2分别与HgCl₂、HgI₂进行配位反应,得到4个Hg（Ⅱ）配合物：[Hg₂（L1）Cl₄]_n（1）,{[Hg₂（L2）Cl₄]·L2}_n（2）,[Hg₂（L1）I₄]_n（3）,[Hg₂（L2）I₄]_n（4）。并通过元素分析、红外光谱、粉末衍射、单晶X射线衍射等对配合物的结构进行了表征。在固体状态下,配合物1和2的Hg（Ⅱ）离子与配体中的γ-C原子及3个氯离子配位形成1D链结构,配合物3的Hg（Ⅱ）离子与L1配体中的烯醇式氧原子,以及3个碘离子配位形成2D网状结构,配合物4的Hg（Ⅱ）离子与配体L2中的烯醇式氧原子及3个碘离子配位形成1D链结构。     

吡唑锌配合物的合成、晶体结构及抗肝癌细胞活性

通过溶剂挥发法合成了锌配合物[Zn(Hppo)2(ppo)Cl](1),Hppo=5-苯基-3-羟基吡唑,利用元素分析、FTIR以及X射线衍射法对配合物1进行表征。晶体结构显示配合物属于单斜晶系,P21空间群。检测了配合物1对肝癌细胞HepG2、Hep3B和Huh7的细胞形态与细胞毒性的影响,结果表明配合物1对肿瘤细胞具有明显的抑制作用。     

Syntheses,crystal structures,and urease inhibitory properties of copper(II) and zinc(II) complexes with 2-bromo-4-chloro-6-[(2-dimethylaminoethylimino)methyl]phenol

A new copper(II) complex, [CuL(μ _1,1-N₃)] _n (1), and a new zinc(II) complex, [ZnL(μ ₂-acetato-O, O′)₂] _n (2) (HL = 2-bromo-4-chloro-6-[(2-dimethylaminoethylimino)methyl]phenol), were prepared and characterized by elemental analyses, infrared spectroscopy, and single-crystal X-ray diffraction. Complex 1 is an end-on azide-bridged polynuclear copper(II) complex and 2 is a syn–anti bidentate acetate-bridged polynuclear zinc(II) complex. Each metal in the complex is five-coordinate with square-pyramidal geometry. Complex 1 shows good urease inhibitory properties, while 2 does not.     

Synthesis,characterization, and crystal structure of two zinc(II) complexes with a Schiff base derived from amantadine

By condensation of amantadine and 4-methoxysalicylaldehyde a new Schiff base HL was synthesized. A mixture of HL and zinc(II) chloride in an alcoholic medium leads to [Zn(HL)₂Cl₂] (1). However, the same reactants gave another different complex (ZnL₂) (2) in the presence of NaOH. The two complexes were characterized by IR, ¹H NMR, elemental analysis, molar conductance, and single-crystal X-ray diffraction. X-ray diffraction analysis reveals that complex 1 crystallizes in the triclinic system, Pī space group; each asymmetric unit consists of one zinc(II), two HL, and two chlorides. The tetra coordination of central zinc is attained by two chlorides and two oxygens from the Schiff base, forming a distorted tetrahedral geometry. Complex 2 crystallizes in the monoclinic system, P2₁/c space group; each asymmetric unit consists of one zinc(II) and two L. The tetra coordination of central zinc is attained by two nitrogens and two oxygens from the Schiff base, forming a distorted tetrahedral geometry.     

Synthesis,characterization, and crystal structures of cobalt(II), copper(II), and zinc(II) complexes of a bidentate iminophenol

A bidentate iminophenol (HL = 2-((4-methoxyphenylimino)methyl)-4,6-di-tert-butylphenol derived from condensation of 4-methoxyaniline and 3,5-di-tert-butyl-2-hydroxybenzaldehyde) was mixed with divalent metal salts to form the corresponding mononuclear metal complexes [M^II(L)₂] (M = Co (1), Cu (2), and Zn (3)). The complexes are characterized by different spectroscopic and analytical tools. X-ray crystal structures of the complexes revealed homoleptic mononuclear complexes with MN₂O₂ coordination. The cobalt(II) (1) and zinc(II) (3) complexes display a pseudo-tetrahedral coordination geometry, whereas the copper(II) complex (2) exhibits a distorted square-planar coordination. The zinc(II) complex (3) emits at 460 nm with a twofold enhancement of emission with respect to the free iminophenol.     

Binding of zinc(II) macrocycles toward carboxylate ligands

Three new zinc(II) complexes, Zn(L1)(NO₃)₂ (1), {[Zn(L1)(fumarate)]·2H₂O} _n (2) and {[Zn(L2)(fumarate)]·DMF} _n (3) (L = 3,14-dimethyl-2,6,13,17-tetraazatricyclo [14,4,0^1.18,0^7.12]docosane) have been synthesized and characterized by analytical, spectroscopic, thermal and X-ray diffraction methods. The structure of the discrete neutral complex (1) shows that the central zinc(II) ion is coordinated axially by two nitrate ligands. In the structures (2) and (3), the carboxylate groups of the bridging fumarate ligands are coordinated to zinc(II) macrocycles, resulting in the formation of 1D coordination polymers. Apart from the fairly strong Zn–O bonds in (2) and (3), it is observed that the hydrogen bonds between the pre-organized N–H groups of the macrocycle and axial ligands appear to be important for the design and development of metal complexes having a strong Zn–O bond.     

偶氮桥连羧酸配体与Zn(Ⅱ)构建的二维配位聚合物的合成、晶体结构及荧光性质

合成了化合物3-(5-叔丁基-2-甲氧羰基甲氧基苯基)偶氮苯甲酸甲酯(Me2L),并以此为配体与醋酸锌在水热条件下通过自组装获得了1个二维的配位聚合物{[Zn(H2O)L]·H2O}n(1),通过红外、元素分析及X-射线单晶衍射等检测手段对所合成的化合物进行了结构表征,并测试了其荧光发射性质。相对于配位前驱体H2L的荧光发射,聚合物1的荧光发射略有红移。结构研究表明,该化合物中配体采取了常见的反式构型,形成了沿晶体学ab平面延伸的二维网状结构,聚合物中的溶剂水分子通过氢键连接在二维结构的内部。该配位聚合物的合成对于研究偶氮类配合物的光化学反应奠定了基础。     

Influence of supporting ligand microenvironment on the aqueous stability and visible light-induced CO-release reactivity of zinc flavonolato species

The visible light-induced CO-release reactivity of the zinc flavonolato complex [(6-Ph₂TPA)Zn(3-Hfl)]ClO₄ (1) has been investigated in 1?:?1 H₂O?:?DMSO. Additionally, the effect of ligand secondary microenvironment on the aqueous stability and visible light-induced CO-release reactivity of zinc flavonolato species has been evaluated through the preparation, characterization, and examination of the photochemistry of compounds supported by chelate ligands with differing secondary appendages, [(TPA)Zn(3-Hfl)]ClO₄ (3; TPA = tris-2-(pyridylmethyl)amine) and [(bnpapa)Zn(3-Hfl)]ClO₄ (4; bnpapa = N,N-bis((6-neopentylamino-2-pyridyl)methyl)-N-((2-pyridyl)methyl)amine)). Compound 3 undergoes reaction in 1?:?1 H₂O?:?DMSO resulting in the release of the free neutral flavonol. Irradiation of acetonitrile solutions of 3 and 4 at 419 nm under aerobic conditions results in quantitative, photoinduced CO-release. However, the reaction quantum yields under these conditions are lower than that exhibited by 1, with 4 exhibiting an especially low quantum yield. Overall, the results of this study indicate that positioning a zinc flavonolato moiety within a hydrophobic microenvironment is an important design strategy toward further developing such compounds as CO-release agents for use in biological systems.     

N-(2-氧乙酸-3-甲氧基)苄叉二胺合锌(Ⅱ)配合物的合成、晶体结构及光学性质研究

本文通过修饰邻香草醛芳环上羟基的方法,得到两种Schiff碱配体:N,N′-二(2-氧乙酸-3-甲氧基)苄叉乙二胺(H2L1)和N,N′-二(2-氧乙酸-3-甲氧基)苄叉1,3-丙二胺(H2L2),利用水热合成方法以新合成的配体为基点设计合成了2个新的六配位Schiff碱锌(Ⅱ)配合物[Zn(L1)]·7H2O(1)和[Zn(L2)]·7H2O(2),通过元素分析、红外光谱和核磁共振光谱等测试手段对配合物进行了表征,并用X射线单晶衍射测得Zn(Ⅱ)配合物的晶体结构。X射线晶体学研究表明两种配合物晶体结构中都包含多个溶剂水分子,配合物1是以Zn(Ⅱ)为中心扭曲的三方棱柱构型,配合物2是以Zn(Ⅱ)为中心扭曲的八面体构型。初步研究了两种配合物的固体发光性,结果表明这两种配合物具有良好的光致发光的性能,有望在光学材料方面得到应用。     

N-(2-氧乙酸-3-甲氧基)苄叉二胺合锌(Ⅱ)配合物的合成、晶体结构及光学性质研究

本文通过修饰邻香草醛芳环上羟基的方法,得到两种Schiff碱配体:N,N'-二(2-氧乙酸-3-甲氧基)苄叉乙二胺(H₂L¹)和N,N′-二(2-氧乙酸-3-甲氧基)苄叉1,3-丙二胺(H₂L₂),利用水热合成方法以新合成的配体为基点设计合成了2个新的六配位Schiff碱锌(Ⅱ)配合物[Zn(L¹)]·7H₂O(1)和[Zn(L²)]·7H₂O(2),通过元素分析、红外光谱和核磁共振光谱等测试手段对配合物进行了表征,并用X射线单晶衍射测得Zn(Ⅱ)配合物的晶体结构。X射线晶体学研究表明两种配合物晶体结构中都包含多个溶剂水分子,配合物1是以Zn(Ⅱ)为中心扭曲的三方棱柱构型,配合物2构型是以Zn(Ⅱ)为中心扭曲的八面体构型。初步研究了两种配合物的固体发光性,结果表明这两种配合物具有良好的光致发光的性能,有望在光学材料方面得到应用。     

Syntheses and crystal structures of two complexes based on 2-amino-4,6-bis(4-pyridyl)-1,3,5-triazine

Two compounds based on 2-amino-4,6-bis(4-pyridyl)-1,3,5-triazine (4-HABPT), [Co(4-HABPT)₂(H₂O)₄](CH₃COO)₂ (1), and Zn(4-HABPT)₂Cl₂ (2) were obtained at room temperature. Single-crystal X-ray diffraction analyses indicate that 1 crystallizes in the triclinic P 1 with cobalt(II) coordinated by two 4-HABPT and four waters, two acetates are counter ions. The complex cations and acetates are linked to a 3-D framework by hydrogen bonds. Compound 2 crystallizes in the orthorhombic Pnc2 with zinc(II) coordinated by two 4-HABPT and two chlorides in a tetrahedral geometry; the complex also forms a 3-D framework by hydrogen bonds and π?···?π interactions.