[Cu(Ⅱ)(DETA)]3[Cr(CN)6]2·5H2O(DETA=二乙烯三胺) 氰桥配合物的结构和磁性研究

近十几年来,以氰根为配体的双过渡金属配合物在分子磁、微电子领域的研究呈现出广泛的应用前景[1～4],该领域已成为各国科学家关注的焦点.其中普鲁士蓝类双过渡金属配合物是分子磁领域的一个重要分支[5～8],在已发现的这个系列配合物中有的其相转变温度Tc值高达376 K[9].     

新型氰基桥联配位聚合物[Ni(en)2]2[Ni(CN)4]2·5H2O的合成、晶体结构和磁性质

分子组装在材料科学、催化和生物化学中具有潜在的应用前景,所以分子组装引起了化学、固体物理学和生物学等领域科学家们的普遍关注.分子组装常用的方法是使用具有配位能力的金属配合物作为建筑块与过渡金属阳离子反应.     

异核配合物[Co(Ⅲ)(Hdmg)2(H2O)2Mn(Ⅱ)Cl3]的合成与晶体结构

A new coordination compound Co(Ⅲ)(Hdmg)₂(H₂O)₂Mn(Ⅱ)Cl₃ was synthesized and its crystal structure was determined. The crystal data are as follows: crystal system, orthorhombic; space group, C222₁(#20); a=1.18315(3) nm, b=1.28631(5) nm, c=1.14355(2) nm, V=1.74037(9) nm³, Z=4, D_c=1.857 g·cm^-3, F(000)=980.00, μ(MoKα)=21.69 cm^-1, R₁=0.030, wR₂=0.92. The coordination geometries around Co(Ⅲ) and Mn(Ⅱ) atoms are distorted octahedral and distorted trigonal bipyramidal, respectively. The Hdmg chelates Co(Ⅲ) and bridges to two Mn(Ⅱ) atoms to form a polyheteronuclear helical structure along the c axis.     

一维链状配位聚合物[M(H2bpb)(H2O)4](SO4)2·6H2O[M=Zn(Ⅱ)，Cu(Ⅱ)]的合成及晶体结构表征

设计并合成了一个含吡啶基团的柔性配体：N，N′-Bis(3-pyridylmethyl)-1，4-benzenedimethylamine(bpb)。通过bpb与硫酸锌及硫酸铜反应得到了两个新型具有一维链状结构的配位聚合物：[M(H₂bpb)(H₂O)₄](SO₄)₂·6H₂O[M=Zn(Ⅱ) 1，Cu(Ⅱ) 2]。X-射线晶体结构测定表明，这两个     

配合物[Co(phen)2(m-chlorobenzoic acid)2·(H2O)]·(H2O)2的水热合成、晶体结构电化学分析

The title complex has been synthesized with m-chlorobenzoic acid, 1,10-phenanthroline and cobalt perchlorate anhydrous in the solvent mixture of water and methanol. Crystal data for this complex: triclinic, space group P1, a=0.870 7(3) nm, b=1.284 4(4) nm, c=1.692 9(5) nm; α=75.430(5)°, β=77.562(5)°, γ=86.346(5)°, V=1.789 4(9) nm³, D_c=1.456 g·cm^-3, Z=2, F(000)=806. Final GooF=1.065, R₁=0.068 4, wR₂=0.127 5. The crystal stru-cture shows that the Cobaly ion is coordinated with four nitrogen atoms from two 1,10-phenanthroline molecules and two oxygen atoms from one m-chlorobenzoic acid molecule and one water molecule respectively, forming a distorted octahedral coordination geometry. The cyclic voltametric behavior of the complex is also reported. CCDC: 619087.     

配合物[Cd(bpndc)(phen)2(H2O)]·2H2O的水热合成、晶体结构及荧光性质

由二苯甲酮-4,4′-二甲酸和邻菲咯啉为配体合成了1个新的镉化合物[Cd(bpndc)(phen)2(H2O)].2H2O(1)(H2bpndc=二苯甲酮-4,4′-二甲酸),并对其进行了元素分析、IR及X-射线衍射法表征。晶体结构表明:配合物1属于四方晶系,I41/a空间群。配合物1中心镉原子是六配位的变形八面体构型,该单核化合物通过氢键拓展成一维链状结构。配合物1的荧光测试研究表明它具有蓝色荧光。     

酰胺氮桥联双核钴(Ⅲ)配合物[Co2(bpmb)2(CN)2]·H2O的合成、分子结构和超分子组装

合成了1个酰胺氮桥联的双核钴(Ⅲ)配合物[Co2(bpmb)2(CN)2].H2O(bpmb2-=1,2-bis(pyridine-2-carboxamido)-4-methylbenze-nate)(1),并通过X-射线单晶衍射分析表征其结构特征。结果表明:吡啶甲酰胺配体H2bpmb的甲酰胺氮原子脱去氢原子形成带两个负电荷的扭曲的四配位螯合配体bpmb2-。1个钴(Ⅲ)离子与2个吡啶氮原子,2个bpmb2-配体上的桥联酰胺氮原子和2个氰基碳原子配位得到六配位、变形的八面体CoN4C2;另1个钴(Ⅲ)离子与2个吡啶氮原子,配体bpmb2-上的2个未桥联甲酰胺氮原子和2个桥联的甲酰胺氮原子六配位,形成扭曲的八面体CoN6配位构型。[Co2(bpmb)2(CN)2]单元通过自由水分子和氰基氮原子和甲酰胺氧原子之间O-H…N和O-H…O氢键形成锯齿型链状超分子亚结构,这些链状亚结构通过π-π相互作用连接起来形成网状的超分子结构。     

基于[(Tp)Fe(CN)3]-氰根桥联异金属三核配合物的合成、晶体结构及磁性

采用[(Tp)Fe(CN)3]-(Tp=hydrotris(pyrazolyl)borate)与[NiL](ClO4)2(L=3,10-bis(2-bydroxyethyl)-1,3,5,8,10,12-hexaazacyclotetra-decane)反应,合成了氰根桥联的异金属三核配合物[NiL][(Tp)Fe(CN)3]2·4H2O(1),并对其结构和磁性进行了研究.该化合物晶体属于正交晶系,Pbca空间群.配合物1中,Ni(Ⅱ)大环与2 [(Tp)re(CN)3]-通过氰根桥联,形成近似直线的三核结构.Ni原子的配位采取六配位稍畸变的八面体构型.其中大环配体上的4个N原子占据赤道平面而桥联氰根的2个N原子占据轴向位置.磁性测定表明在2-300 K的温度范围内,Ni(Ⅱ)和Fe(Ⅲ)之间通过桥联的氰根产生弱的铁磁相互作用.用哈密顿函数H=-2J(SFel·SNi SFe2·SNi)对其XMT-T曲线进行了拟合,得到1的朗德因子g=2.35和交换常数J=8.13 cm-1.最后,对配合物的结构与磁性的关系进行了讨论.     

新型一维链状氰根桥联配合物 [Eu(DMF)4(H2O)2Mn(CN)6.H2O]n的合成与晶体结构

以K     

[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[Cd(m-nitrobenzoic acid)2(phen)2]·(H2O)2的合成、晶体结构及电化学性质

在乙醇和水的混合溶剂中以间硝基苯甲酸(m-nitrobenzoic acid)、邻菲咯啉(phen)为原料合成了一个新的配合物[Cd(m-nitrobenzoic acid)₂(phen)₂]·(H₂O)₂,该配合物晶体属三斜晶系,空间群P1。配合物中镉原子与2个phen的4个N原子和2个间硝基苯甲酸根的3个羧基氧原子配位形成七配位的五角双锥结构。电化学性质研究表明：标题配合物     

配合物[Mn2(α-Furacrylic radical)4(phen)2(H2O)]·H2O的合成、晶体结构及热稳定性

One novel manganese(Ⅱ) complex [Mn2(α-Furacrylic radical)4(phen)2(H2O)]·H2O with α-furacrylic acid radical and 1,10-phenanthroline has been synthesized and characterized. Crystal data for this complex:monoclinic,space group C2/c,a=1.082 34(16)nm,b=2.445 8(4) nm,c=1.857 4(3) nm,β=104.353(2)°,V=4.763 5(12) nm3,Dc=1.471 g·cm-3,Z=4,F(000)=2 168. Final GooF=1.004,R1=0.039 7,wR2=0.108 7. The crystal structure shows that two neighboring manganese(Ⅱ) ions are linked together by two bridging α-furacrylic acid radicals and one bridging water molecule,forming a cage structure. The Mn(1)…Mn(1A) bond distance is 0.357 6 nm. Each manganese(Ⅱ) ion is coordinated with two nitrogen atoms of one 1,10-phenanthroline molecule and four oxygen atoms from three α-furacrylic acid radicals and one water molecule,forming distorted octahedral coordination geometry. Thermal stability of the complex was also discussed.     

一种新型钌(Ⅱ)-组氨酸配合物[RuCl(Me2SO)2(L-His)]·H2O的合成及其结构表征

本文通过将抗癌活性化合物cis-[RuCl2(Me2SO)4]与L-组氨酸在乙醇溶液中或在溶剂热条件下反应,均得到了配合物[RuCl(Me2SO)2(L-His)](1).X-射线单晶结构分析表明该配合物的晶体属变形八面体,空间群P3121,a=b=14.0575(16)A,c=15.637(3)A,分子中含一个结晶水.该配合物中L-组氨酸配体分别通过氨基氮、咪唑氮、羧基氧与中心原子钌(Ⅱ)配位.     

新配合物[Cd(H2O)2(phen)2](PA)2的制备及晶体结构

The new compound was prepared by the reaction of Cd(ClO₄)₂·6H₂O,1,10-phenanthroline (phen)and picric acid (HPA)(ratio 1∶3∶2) in methanol-aqueous solution refluxing for 4 hours. The crystals used for X-ray analysis was obtained by slow evaporation of the solution at room temperature. The crystal compound is in triclinic with space group with a=1.1363(4)nm,b=1.2593(2)nm,c=1.3972(4)nm,α=93.97(2)?,β=100.84(3)?,γ=106.29(2)?,Z=2,V=1.8690(9)nm³,D_c=1.715g·cm^-3, μ(MoKα)=0.677mm^-1,F(000)=972,R=0.0907,wR=0.2240. In the complex, the Cd(Ⅱ) cation is octahedrally coordinated to two 1,10-phenanthroline ligands and two water molecules in cis disposition. As outer sphere, picrate anions are combined with inner by hydrogen bond and static electricity interaction.     

配合物[Cu(PTA)(phen)2]·(PTA)·(H2O)4的合成、晶体结构及电化学性质

The title complex has been synthesized by using terephthalic acid (PTA), 1,10-phenanthroline (phen) and copper monohydrate. It crystallizes in monoclinic space group C2/c with a=2.959 0(2) nm, b=1.466 4(10) nm, c=1.764 3(12) nm, β=105.593(11)°, V=7.372(9) nm³, Dc=1.489 g·cm^-3, Z=8, F(000)=3 416, R₁=0.043 6, wR₂= 0.151 9. The crystal structure shows that the copper atom is coordinated with four nitrogen atoms from two phens and one oxygen atom from one terephthalic acid, forming a distorted square-pyramid coordination geometry. The cyclic voltametric behavior of the complex is also reported. CCDC: 277047.     

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.     

氰基桥联双核镝(Ⅲ)-铁(Ⅲ)配合物[DyFe(CN)6(DMF)4(H2O)3]·1.25H2O的合成与结构表征

A dinuclear complex [DyFe(CN)₆(DMF)₄(H₂O)₃]·1.25H₂O(DMF=N， N-dimethylformamide) 1 based on the cyanide as linkage was prepared and structurally characterized by X-ray single-crystal structure analysis. The Dy(Ⅲ) ion is eight coordinations in a square-antiprism arrangement and the Fe(Ⅲ) ion is six coordinations oriented octahedrally. The neutral units [DyFe(CN)₆(DMF)₄(H₂O)₃] are held together by hydrogen bonds formed by lattice water molecules， coordinated water molecules and nitrogen atoms of cyanide coming from other distinct complex units to afford a three-dimensional framework. CCDC： 192314.     

三核锰配合物[Mn3O(O2CCHClCH3)6(py)2(H2O)]·2/3H2O的合成，晶体结构及磁性

用/N-n-Bu4MnO4,醋酸锰,2-氯丙酸在无水乙醇溶剂中合成了三核锰配合物[Mn3O(O2CCHlCH3)6(py)2(H2O)]·2/3H2O(1·2/3H2O).X-射线单晶衍射确定了其晶体结构.晶体属单斜晶系、C2/c空间群.3个Mn原子构成等腰三角形结构.变温磁化率研究表明配合物1存在反铁磁性交换作用.     

氰根桥联CrⅢ-CrⅡ一维配合物{[Cu(cyclam)] [Cr(bpb)(CN)2]2·2H2O}n的合成、结构与磁性

基于构筑单元K[Cr(bpb)(CN)₂] 和[Cu(cyclam)] (ClO₄)合成了一个氰根桥联的Cr^Ⅲ-Cr^Ⅱ一维化合物{[Cu(cyclam)] [Cr(bpb)(CN)₂]₂·2H₂O}_n[cyclam=1,4,8,11-四氮杂环十四烷;bpb^2-=1,2-二(2-吡啶甲酰胺基)苯] (1),并通过X-衍射单晶分析表征其结构特征.结果表明:化合物1是由氰根桥联的2种不同金属组成的聚合物,其结构属于三斜晶系, P1空间群,a=0.9667 3(19) nm,b=1.345 1(3) nm,c=1.382 0(3) nm,α=77.12(3)°,β=76.93(3)°,γ=82.02(3)°,V=1.699 1(6) nm³,Z=2,D_c=1.567 g·cm^-3,μ=1.086 mm^-1,F(000)=828,R₁=0.0413,wR₂=0.1200.磁性研究表明:配合物1中的Cr^Ⅲ离子和Cr^Ⅱ离子之间存在弱的铁磁耦合作用.     

二维配位聚合物[Cu(anol)(μ1,3-N3)]n的合成、晶体结构及磁性

合成了一个结构新颖的二维Cu(Ⅱ)配位聚合物[Cu2(anol)2(μ1,3-N3)2]n(anol=2-氨基乙醇),通过X-射线单晶衍射确定了其晶体结构.晶体属单斜晶系,P21/n空间群,晶胞参数a=0.83806(17)nm,b=0.77355(15)nm,c=0.85349(17)nm,β=113.26(3)°.配体2-氨基乙醇以双齿模式配位,其配位原于包括醇羟基氧原子和氨基氮原子.在[Cu2(anol)2(μ1,3-N3)2]单元中,Cu(Ⅱ)离子通过2个μ1,1桥联方式配位的醇羟基氧原子相连,形成一个双核单元;单元之间以叠氮根离子EE桥联方式连接Cu(Ⅱ)离子形成二维网格状结构.变温磁化率测定结果表明,在配合物中,Cu(Ⅱ)离子之间存在反铁磁相互作用.