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1.
0引言锑的化合物很早就作为药物使用,如酒石酸锑钾用于治疗血吸虫病,葡萄糖酸锑钠用于抗黑热病。在研究治疗血吸虫病药物的同时,发现了氨羧类锑化合物的抗肿瘤活性[1]。一些锑的配合物和化合物具有一定的生物活性[2],如酵母甘露聚糖和甘露聚糖衍生物锑的配合物对利什曼原虫有治疗作用[3],锑的配合物还可作高效杀虫灭菌剂。因此,对锑化合物的研究越来越受到人们的重视。苯并咪唑及其衍生物是一类生物活性很强的广谱抑菌剂[4],也是一些重要生物分子的基本部分。它作为含氮的富电子体系,可与含空轨道的金属原子形成配合物,并具有生物活性,这方…  相似文献   

2.
通过水热法合成了一个新的超分子化合物[PyBImH2]?[SnCl6] (PyBIm=2-(4-吡啶基)苯并咪唑), 并用元素分析、红外光谱、荧光光谱及X射线单晶衍射对其进行了分析测试。化合物属于正交晶系,Pbcn空间群,晶胞参数:a = 7.1468(3),b = 15.0493(6),c = 16.1195(8) ?,V = 1733.72(13) ?3,Z = 4,Dc = 2.025 g/cm3,Mr = 528.63,μ(MoKα) = 2.395 mm-1,F(000) = 1024,R1= 0.0264,wR2 = 0.0665。Sn4+与6个氯离子配位,形成八面体的配位几何。配位阴离子[SnCl6]2-与[2-(4-吡啶基)苯并咪唑阳离子通过氢键及π-π 堆积作用形成三维超分子结构。  相似文献   

3.
利用邻苯二胺、2,6-吡啶二甲酸与三氯化锑在盐酸溶液中经水热反应,合成了一种新的离子型化合物[2,6-bis(Benzimidazol-2-yl)pyridineH2]2+·[SbCl5]2-。通过化学分析、元素分析、热重分析、红外光谱及荧光光谱对结构和性质进行了表征,用X-射线单晶衍射测定了该化合物的晶体结构。化合物的晶体属三斜晶系,P1空间群。Sb3+与其周围5个氯离子配位,构成一个畸变四方锥构型[SbCl5]2-配位结构,2个配阴离子[SbCl5]2-之间通过Sb(1)…Cl(1)次级键形成四元环状结构,并与2,6-二(苯并咪唑-2′)吡啶两价阳离子,通过离子键及氢键形成三维网状离子化合物晶体。该化合物具有很好的荧光特性。  相似文献   

4.
将邻苯二胺、3-吡啶甲酸与二氯化镉在1:1的盐酸溶液中经水热反应,合成了一种超分子化合物[2-(3-pyridyl)benzimidazoleH2]24+·[Cd2Cl8]4-.通过元素分析、红外光谱、热重对其结构和性质进行了表征,用X-射线单晶衍射测定了该化合物的晶体结构.化合物晶体为单斜晶系,P21/c空间群.超分子化合物中的Cd2+与其周围4个氯离子配位,构成畸变三角锥构型的离子[CdCl4]2-,2个配阴离子[CdCl4]2-之间通过双氯桥键[Cd-Cl-Cd]构成五配位双核镉(Ⅱ)四元环状结构,并与2个2-(3-吡啶基)苯并咪唑两价阳离子,通过静电引力、氢键及π-π呵堆积作用形成三维网状超分子化合物.荧光测试表明该化合物具有较好的光致发光性能.  相似文献   

5.
A supermolecular compound, {[8-hydroxyquinolineH]44+·[SiW12O40]4-·2H2O} was synthesized by hydrothermal reaction with silico-tungstic acid and 8-hydroxyquinoline. The crystal of the compound belongs to monoclinic system, space group P21/n, with a=1.282 6(6) nm, b=2.292 7(4) nm, c=2.092 0(6) nm, β=95.495(2)°, Z=4, V=6.124 1(7) nm3, Dc=3.791 g·cm-3, μ=22.568 mm-1, F(000)=6 200, R1=0.029 3, wR2=0.069 3, GOF=1.079. Su-permolecular compound is composed of one SiW12O404- with Keggin structure, four protonated cations of 8-hydroxyquinoline, two hydrones. Thermal analysis results showed that the anionic skeleton construction of heteropoly acid in compound decomposed approximately at 349.0 ℃. CCDC: 622142.  相似文献   

6.
采用水热法合成了一种新的超分子化合物{[2-(4-chlorophenyl)benzimidazoleH]22+.[SbCl5]2-}n.通过元素分析、红外光谱、荧光光谱及X射线单晶衍射对其结构和性质进行了测定.结构分析表明;该晶体属于单斜晶系,P21/c空间群,晶胞参数为:a=0.583 0(9)nm,b=1.612 5(3)nm,c=1.616 3(3)nm,β=94.181(2)°,Z=2,化学式为C26H20Cl7N4Sb,Mr=758.36,V=1.515 5(4)nm3,Dc=1.662 g.cm-3,μ=1.551 mm-1,F(000)=748,R1=0.089 1,wR2=0.256 8.Sb3+与其周围6个氯离子配位,构成一个6配位的畸变八面体构型,配阴离子与2-(4-氯苯基)苯并咪唑阳离子以静电引力、氢键及π-π堆积作用形成三维网状超分子化合物.荧光测试显示该化合物具有较好的光致发光性能.  相似文献   

7.
在水热条件下,合成了1个新的双核锌配合物[(ZnCl2)(PyBIm)]2(PyBIm=2-(4-pyridyl)benzimidazole)。该配合物为单斜晶系,P21/n空间群,晶胞参数a=0.774 51(4) nm,b=1.252 49(5) nm,c=1.315 96(7) nm,β=100.294(3)°,V=1.256 0(1) nm3,Z=2。结构分析表明,Zn被2个Cl原子和来自PyBIm配体的2个N原子配位,形成了1个变形四面体结构。在该配合物中,Zn…Zn距离为 0.709 4(5) nm,结构中存在π…π堆积和氢键作用。  相似文献   

8.
配位聚合物由于其具有明确有序的一维或多维微观结构以及优异独特的宏观特性,在催化、光学材料、信息存储等领域具有广泛潜在的应用前景[1~3].  相似文献   

9.
陈梓云  彭梦侠 《无机化学学报》2007,23(12):2091-2096
相同的水热反应条件下4-氨基-二(2-吡啶基)-1,2,4-三氮唑(abpt)、KSCN与钴盐(CoCl2·6H2O)反应合成了2种新的钴配合物:零维的单核配合物[CoSCN(abpt)] ()和二维的无机层状配合物K2[Co3(OH)2(SO4)3(H2O)2] (),并通过元素分析和红外光谱对其进行了表征。配合物的晶体属于单斜晶系,P21/c空间群。配合物晶体属于正交晶系,Cmc21空间群。在配合物中,abpt和SCN-配体都参与配位与Co(Ⅱ)离子形成了2个不同的单核单元,这些单核单元又通过S原子和N原子之间的氢键作用连成了三维超分子结构;在配合物中,abpt配体没有参与配位,而SCN-配体则被氧化成了SO42-离子并与Co(Ⅱ)离子配位形成了二维配位层状结构,相邻层之间进一步通过氢键作用形成了沿c轴方向有孔道的三维超分子网络,这些孔道里面填充着反离子K+。  相似文献   

10.
The allo-bisbridge 2D coordination polymer 2[Ni(μ-4,4′-bpy)2/2(μ-L)4/2](HL=2-indolyl-formic acid) has been obtained by using hydrothermal synthesis, and the results of X-ray single crystal diffraction analysis show that the compound crystallizes in monoclinic system, space group C2/c (No.15) with a=2.300 2(5) nm, b=1.129 1(2) nm, c=0.974 0(2) nm, β=109.85(3)°, V=2.379 2(8) nm3, Dc=1.494 g·cm-3, Z=4, F(000)=1 104, μ=0.860 mm-1, R=0.032 2, wR=0.088 8. The crystal structure consists of the [Ni(μ-4,4′-bpy)2/2(μ-L)4/2] complex molecules, in which the Ni atom is octahedrally coordinated by two N atoms from two different 4,4′-bpy molecule ligands and four O atoms from four different L- anion ligands. TG analysis indicate that title coordination polymer possesses relatively high thermal stability. CCDC: 252833.  相似文献   

11.
白色荧光粉NaGd(MoO42:Dy3+,Eu3+的水热合成及发光性能   总被引:1,自引:0,他引:1  
采用谷氨酸辅助水热法合成了八面体形NaGd(MoO4)2:Dy3+,Eu3+白色荧光粉.X射线衍射结果表明,合成的样品为四方晶系的NaGd(MoO4)2纯相.扫描电子显微镜照片显示所制备的粒子为八面体形,各边长约为2μm.荧光光谱结果表明,在NaGd(MoO4)2:4%Dy3+,yEu3+(y=0,0.5%,0.6%,0.7%,0.8%,0.9%,1.0%)样品中,随着Eu3+掺入量的增加,Dy3+的发射峰逐渐减弱,而Eu3+的发射峰逐渐增强,说明Dy3+-Eu3+之间存在能量传递.通过色坐标图可知,当Eu3+掺杂量y=0.9%时,荧光粉的色坐标(0.338,0.281)与标准的白光色坐标(0.33,0.33)接近,表明NaGd(MoO4)2:4%Dy3+,0.9%Eu3+是很好的近紫外光激发下的白色荧光粉.  相似文献   

12.
利用水热技术合成了一个以Keggin型多金属氧酸盐和柔性有机配体为建筑块的三维超分子化合物[H2bbi]3[α-PMo12O40]2(1)(bbi=1,4-双-(咪唑-1-基)丁烷),用X-射线单晶衍射、元素分析、红外光谱和X-射线粉末衍射对晶体结构进行了表征.X-射线单晶衍射显示,该晶体属于三斜晶系,P-1空间群,a=1.183 60(9)nm,b=1.209 32(10)nm,c=1.77728(15)nm,α=74.089 0(10)°,β=70.949 0(10)°,γ=71.816 0(10)°,V=2.242 1(3)nm3,Z=2,Dc=3.109g/cm3,F(000)=2 300,μ=3.39mm-1,S=1.047,R1=0.035 0,wR2=0.077 6[I>2σ(I)].  相似文献   

13.
稀土有机配合物在激光材料创制、结构探针、荧光免疫分析及生物传感器等领域展示出了广阔的应用前景[1].  相似文献   

14.
The title compound, [Mn3(L)6(CH3OH)2]n·0.5nH2O (1), where HL=3,5-dirnethylbenzoic acid, was synthesized and its crystal structure was determined by X-ray diffraction structure analysis. The crystal is of triclinic,space group P1 with α=1.275 1(13) nm, b=1.354 6(14) nm, c=1.882 3(19) nm, α=110.826(1)°,β=94.358(2)°,γ=108.038(1)°, V=2.825 4(5) nm3, Z=1, Mr=2 265.77, Dc=1.332 g·cm-3,μ=0.723 mm-1, F(000)=1180, Rint=0.037, R=0.056 4, wR=0.128 5. In the crystal the manganese atom is six-coordinated by six oxygen atoms, completing an octahedral geometry. The molecules are connected by 3,5-dimethylbenzoic acid to form a 1D chain structure bridged. CCDC: 694097.  相似文献   

15.
3-(4-吡啶基)丙烯酸(4-HPYA)和Nd(NO3)3通过水热法合成了一种新的一维链状配位聚合物[Nd(4-PYA)3(H2O)2]n(1),其结构经IR,元素分析和X-射线单晶衍射表征。1属三斜晶系,P-1空间群,晶胞参数:a=0.829 23(13)nm,b=1.272 60(2)nm,c=1.435 00(12)nm,α=112.371(2)°,β=98.856(3)°,γ=100.239(2)°,V=1.336 6(3)nm3,Mr=660.72,Z=2,Dc=1.642 g.cm-3,F(000)=662,μ=2.002mm-1,R1=0.052 3,wR2=0.141 9。1通过分子间氢键作用将一维链紧密堆积成三维网状结构。  相似文献   

16.
New solid complex of the antimony trichloride and dioxane was obtained th rough a reaction of the dioxane and the absolute methanol solution of the antimony trichloride.The formula of the complex is[SbCl3·{(CH2)4O2}1.5].The crystal structure of the complex belongs to cubic system,space group I-43d,a=17.1417(5)Å,Z =16.The trivalent antimony ion n ot only bonds directly to three chlorine anions,but also is coordinated by three oxygen atoms of th e dioxane molecules.Two oxygen atoms in a dioxane molecule will coordinate to different antimony ions,respectively.  相似文献   

17.
A complex {[Co(4,4′-bipy)(H2O)4]·(α-Furacrylic acid)2·(H2O)}n with α-furacrylic acid, 4,4′-bipy and cobaltous chloride hexahydrate has been synthesized by means of hydrothermal way and characterized. Crystal data for this complex: monoclinic, space group P21/c, a=1.147 0(2) nm, b=1.099 9(2) nm, c=1.111 1(2) nm, β=97.829(3)°, V=1.388 7(5) nm3, Dc=1.429 g·cm-3, Z=2, μ(Mo Kα)=0.682 mm-1, F(000)=622, S=1.025, R1=0.035 8, wR2=0.086 1. The crystal structure shows that the cobalt(Ⅱ) ion is coordinated with two nitrogen atoms of two 4,4′-bipy molecules and four oxygen atoms from four water molecules, respectively, giving a distorted octahedral coordination geometry. Adjacent cobalt(Ⅱ) ions are bridged by 4,4′-bipy groups, resulting in a 1D chain structure. The adjacent Co(Ⅱ)-Co(Ⅱ) distance is 1.147 0 nm. The cobalt(Ⅱ) ion isn′ t coordinated with α-Furacrylic acid. The complex molecules form 2D structure through hydrogen bonds. The cyclic voltametric behavior of the complex was also investigated. CCDC: 648243.  相似文献   

18.
羧酸配合物具有丰富的拓扑结构,在磁学、光学、催化、生物等诸多领域有广泛的应用前景,人们对羧酸配合物的研究一直保持着浓厚的兴趣[1,2].  相似文献   

19.
该文报道了N,N′-(2-苯并咪唑基甲基)亚氨基甲基膦酸{bbimpH2,[(C7H5N2)CH2]2NCH2PO3H2}的2个镍化合物Ni2(bbimp)2(4,4′-bipy)(H2O)2·2H2O (1)和[Ni2(bbimp)2(H2O)2][Ni(bbimp)(H2O)2]2·4H2O (2)。化合物1是4,4′-联吡啶作为桥连配体的中性双核结构。化合物2含有1个中性的[Ni2(bbimp)2(H2O)2]双核分子与2个中性的[Ni(bbimp)(H2O)2]单核分子。双核分子单元中的2个Ni(Ⅱ)离子被2个膦酸氧桥连。在化合物2中,膦酸氧桥连的2个Ni(Ⅱ)离子之间存在铁磁性相互作用。  相似文献   

20.
The crystal structure of the title complex, [K2(5-nbdc)2Cd(Ⅱ)·imH·H2O] (5-nbdc=5-nitro-1,3-benzenedicarbonate, imH=imidazole) has been determined by X-ray diffraction analysis. The crystal data are: tetragonal, space group P41, Mr=694.93 for CdC19H12N4O13K2, a=1.018 6(10) nm, b=1.018 6(10) nm, c=2.436 7(5) nm; Z=4, V=2.528 2(6) nm3, F(000)=1 376, Dc=1.826 Mg·m-3, μ=1.267 mm-1. The title polymeric complex exhibits a two-dimensional framework, in which adjacent Cd(Ⅱ) ions are bridged by μ-O4-5-nitro-1,3-benzenedicarbonate groups forming one-dimensional chains that are further linked by μ-O3-5-nitro-1,3-benzenedicarbonate groups into two-dimensional anion rectangle sheets with large 32-membered rings. The strong π-π stacks of the benzene rings link these adjacent sheets into a three-dimensional van der Waals network. CCDC: 245527.  相似文献   

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