双核铜(Ⅱ)配合物在H2O2存在下对DNA的氧化切割活性

A novel dinuclear copper(Ⅱ) complex, [Cu₂(phen)(dipic)₂(H₂O)₂]·2H₂O (phen=1,10-phenanthroline, dipicH₂=2,6-pyridinedicarboxylic acid), has been prepared and structurally characterized. The complex crystallizes in the triclinic system, space group P1 with cell parameters a=0.846 0(17) nm, b=1.289 5(3) nm, c=1.452 7(3) nm, α=77.42(3)°, β=79.11(3)°, γ=87.08(3)°, and V=1.518 8(6) nm³. The dinuclear complex shows potential DNA cleavage activity at micromolar concentration in the presence of H₂O₂ and exhibits higher nuclease efficiency than mononuclear complex [Cu(dipic)(H₂dipic)]·H₂O. Without external reductants, the added H₂O₂ may contribute to the generation of hydroxyl radicals that result in DNA strand scission.CCDC:291786.     

双核配合物[Cu2(L-Asp)(phen)3(NO3)](NO3)·4H2O的合成及晶体结构

The new complex [Cu₂(L-Asp)(phen)₃(NO₃)](NO₃)·4H₂O (L-Asp=L-aspartic acid and phen=1,10-phenanthroline) has been synthesized and its crystal structure has been determined. The complex crystallizes in the monoclinic with space group P2₁/c, The cell parameters are: a=1.261 3(2) nm, b=1.500 8(4) nm, c=2.230 7(4) nm, β=99.55(1)°, and V=4.164 1(16) nm³，D_c=1.587 g·cm^-3. The complex contains two six-coordinated copper ions, and these two copper ions are connected together by L-aspartate to give rise to a binuclear structure. Hydrogen bonds and π-π stacking interactions are observed in the complex. CCDC: 249250.     

[Mn(H2O)(phen)2(PAc)](ClO4)的合成、红外光谱及晶体结构

The complex [Mn(H₂O)(phen)₂(PAc)](ClO₄) was synthesized and investigated by elemental analysis, molar conductivity, IR spectrum and X-ray diffraction methods, where phen=1,10-phenanthroline and PAc=phenylac-etate group. The complex crystallizes in the triclinic space group,P1 , with a=0.9289(2)nm,b=1.2425(2)nm,c=1.4791(3)nm,α=114.34(3)°,β=91.25(3)°,γ=104.65(1)°,V=1.4893(4)nm³,Z=2,F(000)=686,D_c=1.489g·cm^-3,μ=0.589mm^-1. The Mn(Ⅱ) ion has a six-coordinate distorted-octahedral geometry with the four nitrogen atoms of two phen ligands,a coordinated-water oxygen atom, and a carboxylate oxygen atom of PAc^-. There is π-π stacking interaction between two phen rings from two neighbor molecules.     

5，6-二羧基苯并咪唑双核铕配合物的合成、结构及荧光性能

A europium complex [Eu₂(bmd)₂(Hbmd)₂(H₂O)₈]·8H₂O (H₂bmd=Benzimidazole-5,6-dicarboxylic acid) has been synthesized and structurally determined by X-ray diffraction single crystal structure analysis. The crystal belongs to triclinic, space grounp P1, with a=0.754 49(15) nm, b=1.253 8(3) nm, c=1.405 8(3) nm, α=71.03(3)°, β=82.83(3)°, γ=79.12(3)°, V=1.232 1(5) nm³, Z=1. The complex is a binuclear compound and each Eu(Ⅲ) ion is nine-coordinated. The versatile hydrogen bonds link binuclear units into a three-dimensional (3D) supermolecular network. Furthermore, the fluorescent properties of the complex have been investigated at room temperature. CCDC: 742510.     

2D氢键网状Mg(Ⅱ)配合物的合成和晶体结构

The title complex [Mg(H₂O)₆]·(L)·(H₂O) [L=2-formyl-benzenesulfonate-hydrazine] was synthesized by the reaction of magnesium chloride hexahydrate with 2-formyl-benzenesulfonic acid sodium-hydrazine in the CH₃CH₂OH/H₂O. It was characterized by elemental analysis, IR and X-ray single crystal structure analysis. The crystal of the title complex [Mg(H₂O)₆]·(C₁₄H₁₂N₂O₇S₂)·(H₂O) belongs to triclinic, space group P1 with a=0.781 09(12) nm, b=0.781 27(13) nm, c=0.995 68(19) nm, α=102.054(2)°, β=92.331 0(10)°, γ=105.500(2)°, V=0.569 59(17) nm³, Z=1, D_c=1.559 Mg·m^-3, μ=0.334 mm^-1, F(000)=280, and final R₁=0.033 9, wR₂=0.091 6. The complex comprises a six-coordinated magnesium(Ⅱ) center, with a O₆ distorted octahedron coordination environment. The molecules are connected by hydrogen bonds to form two dimensional network structures. CCDC: 716601.     

3-甲基-4-对甲苯基-5-(2-吡啶基)-1，2，4-三唑-铜(Ⅱ)配合物

A copper(Ⅱ) complex [CuL(H₂O)(Sal)]·0.5H₂O was obtained by the reaction of copper(Ⅱ) salicylate with 3-methyl-4-(4-methylphenyl)-5-(2-pyridyl)-1,2,4-triazole (L) in ethanol-water solution at room temperature. The crystal belongs to triclinic system with space group P1, and a=0.913 6(4) nm, b=1.122 2(5) nm, c=1.263 3(7) nm, α=67.10(2)°, β=76.31(3)°, γ=68.17(2)°, V= 1.101(1) nm³, Z=2. The final refinement gave R₁=0.039 8 and wR₂=0.106 0 for 3 453 reflections with I>2σ(I). This complex is a good purple fluorescent material in solid state at room temperat-ure. CCDC: 685713.     

双核铜(Ⅱ)-氟喹诺酮-邻菲咯啉混配配合物的合成、晶体结构和抗肿瘤活性

A new binuclear copper (Ⅱ) complex with 1,10-phen and fluoroquinolone ligands, [Cu₂(cfc)₂(phen)₂(pip)](NO₃)₂(CO)₂,was synthesized and its crystal structure was solved.The formula of the complex is C₂₈H₂₄ClCuFN₅O₇, and the crystallography data are as follows, triclinic, space group P1, a=0.80372(6)nm, b=0.94712 (7)nm, c=1.67826(13)nm, α=88.5650(10)°, β=80.9920(10)°, γ=70.2780(10)°, V=1.18722(6)nm³, Z=2, D=1.848g· cm^-3, F(000)=676. R₁=0.0627 and wR₂=0.1684 (I>2σ(I)). The copper atom is five- coordinate with square-based pyramidal geometry and involves two nitrogen atoms from phen, two oxygen atoms from cfc and one nitrogen atom from pip anion. The stacking effect between cfc and phen ligands from two neighboring molecules was observed. FT-IR spectrum of the complex was also discussed. Both ligand and complex were assayed against gram-positive and gram-negative bacteria by doubling dilutions method； the complex shows the same mini-mal inhibitory concentration (MIC) as the corresponding ligand against S. Aureus, E. Coli and M. Lutens bac-teria. The inhibitory effect of the ligand and complex on leukemia HL-60 cell line and liver cancer BEL-7402 cell line have been measured by using MTT (Methyl-Thiazol- Tetrozolium) and SRB (Sulphurhodamin B) assay meth-ods, respectively. The results indicated that the complex has strong inhibitory effect on HL-60 and BEL-7402 cell line. CCDC: 203964.     

苯丙烯酸桥联的双核镉配合物[Cd(cinnamato)2(Phen)]2的水热合成和晶体结构

A cadmium complex [Cd(cinnamato)₂(Phen)]₂ was synthesized by the reaction of cinnamic acid, phenanth-roline (phen), and Cd(ClO₄)₂·6H₂O. It crystallizes in triclinic, space group P1, with a=1.142 1(13) nm, b=1.157 6(13) nm, c=2.106 1(2) nm, α=80.307(2)°, β=77.334(2)°, γ=71.630(2)°, V=2.563 4(5) nm³, D_c=1.521 g·cm^-3, Z=2, M_r=586.90, μ=0.891 mm^-1, F(000)=1 184, the final R=0.031 7, wR=0.067 5. The crystal structure shows that the cadmium ion is coordinated with two nitrogen atoms from one phen molecule and five oxygen atoms respectively from three cinnamic acids, giving a pentagonal bipyramid coordination geometry. CCDC: 687380.     

镧与β-丙氨酸配合物{[La2(β-ala)6(H2O)4](ClO4)6·H2O}n的合成及晶体结构

The complex, {[La₂(β-ala)₆(H₂O)₄](ClO₄)₆·H₂O}_n, was synthesized in aqueous solution and its crystal structure was determined by X-ray diffraction method .The crystal is triclinic with space group of .The cell pa-rameters are a=0.946(1)nm, b=1.2917(1)nm, c=2.1726(3)nm,α=76.79(1)°, β=80.85(1)°,γ=83.35(1)°, V=2.5429(5)nm³, Z=2, D_c=1.958g·cm^-3.The complex is an one-dimensional infinite chain. The coordination number of lanthanum ion is nine, forming a distorted tricapped trigonal prism.     

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.     

11-钨钛合过渡金属杂多酸钾的合成与性质

11-系列不饱和杂多阴离子可作为配体与过渡金属或希土离子生成混合型杂多阴离子。由于这种无机高分子配合物对某些有机合成反应具有催化活性及抗病毒性能,新型化合物的合成仍吸引着人们的关注。11-钨钛杂多阴离子除与希土离子生成K_(13)[Ln(TiW_(11)O_(39))_2]·xH_2O型化合物外,也可与过渡金属离子生成混合型杂多阴离子。本文报道了K_n[TiW_(11)M(H_2O)O_(39)]·xH_2O(M=Mn~(2+)、Cu~(2+)、Zn~(2+)、Fe~(3+),Co~(3+)和Cr~(3+))型杂多酸盐的合成与性质。     

Synthesis and Crystal Structure of Unprecedented Pentanuclear Cu_5~Ⅱ Complex Containing both Macrocyclic and Azido Ligands

The organic-inorganic hybrid complex with formula [(CuL)2Cu3(μ-1,1-N3)4(ClO4)2],complex 1,{CuL,[5,6:14,15-dibenzo-1,4,8,12-tetraazacyclopentadeca-7,13-diene-2,3-dione(2-)]copper(II)},has been synthesized and structurally determined. The crystals of complex 1 crystallize in the triclinic system with space group P1,a=0.92983(12) nm,b=1.09644(14) nm,c=1.27396(16) nm,α=70.782(2)°,β=86.266(2)°,γ=78.284(2)°. In this com-plex,the five copper ions are bridged by macrocyclic oxamide groups and azido. Furthermore,C―H...     

Reactions of Dienes with a Mo(0) Complex with Tetraphosphine Coligand [Mo(P4)(Ph2PCH2CH2PPh2)] (P4 = Meso‐o‐C6H4(PPhCH2CH2PPh2)2)

Reaction of tetraphosphine complex [Mo(κ⁴‐P4)(Ph₂PCH₂CH₂PPh₂)] (1; P4 = meso‐o‐C₆H₄‐(PPhCH₂CH₂PPh₂)₂) with E‐1,3‐pentadiene in toluene at 60 °C gave the η⁴‐diene complex [Mo(η⁴‐E‐1,3‐pentadiene)(κ⁴‐P4)] (2), which is present as a mixture of two isomers due to the orientation of the Me group in the diene ligand. Treatment of 1 with Z‐1,3‐pentadien also resulted in the formation of 2 as the sole product after heating the reaction mixture at 90 °C. Whereas the reaction of 1 with 1,3‐cyclohexadiene at 60 °C afforded the η⁴‐diene complex [Mo(η⁴‐cyclohexadiene)(κ⁴‐P4)] (6), that with cyclopentadiene led to the C‐H bond scission product [η⁵‐C₅H₅)MoH(κ³‐P4)] (7). Detailed structures were determined by X‐ray crystallography for 2, 6,and 7, and fluxional feature of 6 in solution was clarified based on the VT‐NMR studies.     

系列同三核铬、锰、铁羧酸配合物的FAB-MS研究

进行了系列同三核羧酸配合物〔Ｍ３Ｏ（Ｏ２ＣＲ）６Ｐｙ３〕Ｘ（Ｍ＝Ｃｒ,Ｍｎ,Ｆｅ;Ｒ＝ＣＨ３,Ｃ２Ｈ５,Ｃ６Ｈ５;Ｘ＝Ｃｌ－,ＣｌＯ４－;Ｐｙ为吡啶）的快原子轰击质谱（ＦＡＢ－ＭＳ）研究。获得了包括配位吡啶在内的完整阳离子峰。在研究其断裂规律时,主要观察到４个系列碎片离子：Ⅰ．〔Ｍ３Ｏ（Ｏ２ＣＲ）ｎ〕＋,ｎ＝６～２;Ⅱ．〔Ｍ３Ｏ（Ｏ２ＣＲ）ｎＯ〕＋,ｎ＝５～１;Ⅲ．〔Ｍ２Ｏ（Ｏ２ＣＲ）ｎ〕＋,ｎ＝３～１;Ⅳ．〔Ｍ２（Ｏ２ＣＲ）ｎ〕＋,ｎ＝４～２。通过对该系列配合物质谱断裂过程的比较和分析,获得了配合物稳定性随金属离子及配体的变化如下：金属离子,Ｃｒ＞Ｍｎ＞Ｆｅ;桥配基,－ＣＨ３ＣＯ２＞－Ｃ２Ｈ５ＣＯ２＞－Ｃ６Ｈ５ＣＯ２;端配基,Ｐｙ＞Ｈ２Ｏ。本研究及先前的工作〔１,８〕还为某些三核铬,铁羧酸配合物在以乙炔加水或加氢为探针反应中存在活性物种：〔Ｃｒ３Ｏ（Ｏ２ＣＲ）３～４〕,〔Ｆｅ３Ｏ（Ｏ２ＣＲ）３〕和〔Ｆｅ３Ｏ－（Ｏ２ＣＲ）Ｏ〕～〔Ｆｅ３Ｏ４〕提供了佐证     

Syntheses and crystal structures of 3-tert-butyl-4-cyano pyrazole and its complexes with cobalt(II), manganese(II), and copper(II)

A new pyrazole ligand, 3-tert-butyl-4-cyano pyrazole (Hpz^t-Bu,4CN), has been synthesized. The crystal structure of this pyrazole, along with the syntheses and crystal structures of Co, Cu, and Mn complexes of this ligand, are reported. The uncoordinated pyrazole shows the formation of a cyclic hydrogen-bound dimer. The Co complex is octahedral, with four coordinated pyrazoles and two coordinated waters. The Mn complex is octahedral, with two coordinated pyrazoles, two coordinated triflates and two coordinated waters. A hydrogen bonding network involving the triflates and waters results in a linear double chain of Mn complexes. The Cu complex has two coordinated pyrazoles and two coordinated chlorides in a slightly distorted square-planar geometry, with a long bond to the cyano N atom of a neighboring Cu complex, forming a pseudodimer.     

Synthesis,IR Spectrum,Thermal Analysis,and Crystal Structure of the Cyano‐bridged Heteronuclear Polymeric Complex: [Zn(teta)Ni(μ‐CN)2(CN)2]n

The heteronuclear polymeric complex, [Zn(teta)Ni(μ‐CN)₂(CN)₂]_n (teta: triethylenetetramine), was synthesized and characterized by elementel analysis, FT‐IR spectroscopy, thermal analysis and single crystal X–ray diffraction techniques. The complex crystallizes in the monoclinic system, space group P2₁/c and in which the Zn^II ion exhibits a distorted octahedral coordination by one tetradentate teta ligand and two bridging cyano groups as a trans position, whereas the Ni^II ion has square planer coordination and is coordinated by four cyano ligands. The decomposition reaction takes places in the temperature range 30–600 °C in the static air atmosphere.     

含N-苯甲酰皮考林酰肼的钒酰、镍及锰配合物的合成和晶体结构

合成了3个含N-苯甲酰皮考林酰肼(简写为HL)的钒、镍和锰配合物[VO_2L](1,C_(13)H_(10)N_3O_4V,M_r=323.18),[NiL_2]·0.5CH_3OH(2,C_(26.5)H_(22)N_6NiO_(4.5),Mr=555.21)和[MnL_2]·0.5CH_3OH(3,C_(26.5)H_(22)MnN_6O_(4.5),Mr=551.44)。配合物1属三斜晶系,空间群为P1,a=0.71241(3)nm,b=0.89625(6)nm,c=1.11706(6)nm,α=94.715(2)°,β=102.053(2)°,γ=112.375(3)°,V=0.63461(7)nm~3,Z=2,F(000)=328,μ(MoKα)=0.802mm~(-1),R=0.0290,wR=0.0816;配合物2属单斜晶系,空间群为C2/c,a=2.5875(1)nm,b=1.4868(1)nm,c=1.8353(1)nm,β=134.470(4)°,V=5.2081(5)nm~3,Z=8,F(000)=2368,μ(MoKα)=0.795mm~(-1),R=0.0459,wR=0.1330;配合物3属单斜晶系,空间群为C2/c,a=2.60113(3)nm,b=1.45231(4)nm,c=1.92903(1)nm,β=132.824(1)°,V=5.3448(2)nm~3,Z=8,F(000)=2344,μ(MoKα)=0.543mm~(-1),R=0.0457,wR=0.1325。在配合物1中,钒(V)原子具有畸变的N_2O_3四角锥配位构型,晶体内每两个分子通过分子间氢键作用形成缔合分子对。在配合物2和配合物3中,镍(Ⅱ)原子和锰(Ⅱ)原子具有扭曲的N_4O_2八面体配位构型,晶体通过分子间氢键作用形成一维的无限链状结构。红外光谱表明,配体在形成配合物后,ν(C=O)和ν(C=N)红移。电     

18-冠-6铵与硫氰酸银配合物的晶体和分子结构

用凝胶法生长出规则八面体形无色配合物单晶体,在ENRAF-NONLUSCAD4四园衍射仪上,用2461个独立可观察衍射数据,用Patterson函数法和多次△F合成,得到配合物的全部结构参数。结构偏差因子R=0.072,R_w=0.081晶体属单斜晶系,空间群为P_(21)/n。晶胞参数:a=9.032(2),b=14.243(4),C=35.092(6),β=105.5°,Z=4。晶体密度的计算值:D_(eal)=1.546g/cm~3。经元素分析和X射线结构分析,确定晶体的化学式为[(NH_4)(18C6)]_2[Ag_2相似文献   

Synthesis and Characterization of Transition Metal (Cu,Co, Fe) Complexes of 6-Methyl-5-arylhydrazono-2-thio-4-oxo-pyrimidine Ligand

The article deals with a study to synthesize transition metal complexes of copper, cobalt, and iron with the ligand 6-methyl-5-arylhydrazono-2-thio-4-oxo-pyrimidine (MATOPyr). The synthesized ligand and all metal complexes were characterized by elemental analysis, XRD, SEM, FTIR, ¹HNMR, UV-VIS, magnetic spectral studies, and Mössbauer measurements. The morphology of the ligand along with the complexes of all three metals was also deduced.     

系列异三核铬、锰、铁羧酸配合物的FAB-MS研究

进行了系列异三核羧酸配合物〔Ｍ２Ｍ＇Ｏ（Ｏ２ＣＲ）６Ｐｙ３ 〕Ｘ （Ｍ, Ｍ＇ ＝ Ｃｒ, Ｆｅ,Ｍｎ; Ｒ＝ Ｈ, ＣＨ３, Ｃ２Ｈ５, Ｐｙ＝ 吡啶; Ｘ ＝ Ｏ２ＣＨ, Ｏ２ＣＥｔ, Ｃｌ, ＣｌＯ４）的快原子轰击质谱（ＦＡＢ－ＭＳ）研究, 观察到异三核的２ 类重组反应： 第１ 类生成含有〔Ｍ３〕和〔Ｍ２Ｍ＇〕两种碎片离子, 第２ 类则生成含有〔Ｍ３〕, 〔Ｍ２Ｍ＇〕, 〔ＭＭ＇２〕和〔Ｍ＇３〕等４ 种不同组合的碎片离子。文中初步探讨了进行２ 类重组反应的原因和规律。根据所提出的规律确定了金属离子反应速率的顺序为Ｃｒ ＞ Ｆｅ ＞ Ｍｎ。