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1.
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   

2.
The title complex, {[Cd2(1,8-nap)2(H2O)2](bpp)2}n(1), a cadmium complex based on mixed naphthalene-1,8-dicarboxylate (1,8-nap) and flexible 1,3-bi(4-pyridyl)propane (bpp) ligands, has been hydrothermally synthes-ized. It consists of a one-dimensional chain along c axis, which is derived from dimeric unit [Cd2(1,8-nap)2(H2O)2] linked by a pair of bpp ligands. In every [Cd2(1,8-nap)2(H2O)2] dimeric unit, two 1,8-nap act as bridging ligands to connect two Cd(Ⅱ) atoms, forming a sixteen-membered ring. Each Cd(Ⅱ) atom is in a distorted octahedral environment, coordinated by one aqua, two 1,8-nap and two bridging bpp ligands. In addition, two bridging bpp ligands connected two neighboring Cd(Ⅱ) atoms form a twenty-four-membered ring. The TGA and Luminescence property in solid state of complex 1 have been further studied and discussed in this paper. CCDC: 669293.  相似文献   

3.
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  相似文献   

4.
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.  相似文献   

5.
通过水热方法,采用H2cpna(H2cpna=5-(2′-carboxylphenyl))和bpy(bpy=2,2′-bipyridine)与Ni(OAc)2·4H2O反应,合成了一个具有二维结构的配位聚合物[Ni(cpna)(bpy)(H2O)]n (1),并对其结构和磁性质进行了研究。结构分析结果表明该聚合物的晶体属于单斜晶系,P21/c空间群。3个镍(Ⅱ)离子、3个cpna配体、3个2,2′-bpy配体和3个配位水分子形成了一个[Ni3(cpna)3(bpy)3(H2O)3]环,这些环通过镍(Ⅱ)离子与cpna配体的配位作用形成了一个二维层状结构。层与层之间又通过π-π堆积作用形成了一个三维的配位框架。研究表明,该聚合物中相邻镍(Ⅱ)离子之间存在很弱的反铁磁相互作用。  相似文献   

6.
以取代的二硫代草酰胺根作为桥联配体, 合成了3种新的三核镍配合物[Ni3(Ped)2](ClO4)2(H2O) (1)、[Ni3(Ped)2](NO3)2(H2O) (2)和[Ni3(Ped)2](Ac)2(H2O)2 (3),及2种新的异三核铜镍和铜锰配合物[CuNi2(Ped)2](NO3)2(H2O)2 (4)和[CuMn2(Ped)2](NO3)2(H2O)2 (5) (H2Ped =N,N′-双(2-吡啶乙基)二硫代草酰胺)。通过元素分析、红外光谱、紫外可见光谱、电导、电子顺磁共振谱等对配合物进行了表征,对配合物进行了热分析。测定了配合物(5)的变温磁化率,研究了配合物(5)中Cu(Ⅱ)-Mn(Ⅱ)离子间的磁相互作用,结果表明在Cu(Ⅱ)-Mn(Ⅱ)离子间的磁相互作用具有高自旋基态的非正规自旋态性质。  相似文献   

7.
Compound [Ni(hmt)2(SCN)2(H2O)2][Ni(SCN)2(H2O)4](H2O)2 (hmt=hexamethylenetetramine) was pre-pared and structurally characterized by means of X-ray single crystal diffraction. The two neutral units [Ni(hmt)2(SCN)2(H2O)2] and [Ni(SCN)2(H2O)4] are joined together through hydrogen bonds N…H-O, O…H-O and S…H-O. In the solid state, the compound has three-dimensional network structure. The determination of its variable-temperature magnetic susceptibilities (5~300K) shows that the magnetic behavior obeys the Curie-Weiss law over the whole temperature ranges.  相似文献   

8.
利用配体1-(4-羟基苯)-5-巯基四氮唑(H2L)和金属盐酸盐在水溶液中反应,合成了4种离子型化合物,并测定了它们的晶体结构。分析结果显示它们是异质同晶,都属于P1空间群,分子通式为[M(H2O)6](HL)2[M=Mn (1),Co (2),Ni (3),Zn (4  相似文献   

9.
在甲醇水混合溶剂中,以对乙酰氨基苯甲酸(p-ABA),1,10-邻菲咯啉(phen)为配体与高氯酸锌合成了标题配合物[Zn(p-ABA)2(phen)·(H2O)]·H2O。配合物(C30H26N4O8Zn,分子量为637.93)晶体属单斜晶系,空间群P21/c。晶体结构表明:锌原子与2个对乙酰氨基苯甲酸的2个氧原子,1个1,10-邻菲咯啉中的2个氮原子以及水分子中的氧原子配位,晶胞参数:a=1.362 77(17) nm, b=1.882 3(2) nm,c=1.252 53(16) nm;β=114.500(2)°,V=2.923 6(6) nm3Dc=1.449 g·cm-3Z=4,F(000)=1 320,R1=0.041 4,wR2=0.087 8。形成五配位的三角双锥结构。对配合物热稳定性进行分析,结果表明,配合物在230.0 ℃以下稳定性好。  相似文献   

10.
通过水热方法,采用H3L(H3L=2-(4-carboxypyridin-3-yl)terephthalic acid)与FeSO4·7H2O反应,合成了一个具有二维结构的配位聚合物[Fe(HL)(H2O)]n (1),并对其结构和磁性质进行了研究。结构分析结果表明该聚合物的晶体属于正交晶系,Pnna空间群,a=1.45465(11) nm,b=2.47423(15) nm,c=0.73565(4) nm,V=2.6477(3) nm3,Dc=1.802 g·cm-3,Z=8,R=0.0468,wR=0.1256(I>2σ(I))。HL2-配体交替连接相邻的铁(Ⅱ)离子形成了一维链结构单元,这些链又通过配体与铁(Ⅱ)离子的配位作用形成了二维层。最后这些层通过氢键作用形成了一个复杂的三维超分子框架。拓扑分析表明,配合物1具有一个双节4,4-连接的拓扑网络结构,其拓扑符号为(43.62.8)。研究表明,该聚合物中相邻铁(Ⅱ)离子之间存在反铁磁相互作用。  相似文献   

11.
The complex {[Co(4,4′-bpy)(H2O)4](Fum)·4H2O}n(where 4,4′-bpy = 4,4′-bipyridine and Fum = fumarate) was synthesized and characterized by X-ray diffraction. The complex consists of one-dimensional chains containing cobalt(Ⅱ) ions bridged by 4,4′-bpy molecules. The six-coordination of Co2+ is achieved by means of four water molecules. The fumarate is not coordinated to cobalt ion while it forms hydrogen bonds with coordinated and non-coordinated water molecules and extends the structure into three-dimensional hydrogen bonding network. CCDC: 190488.  相似文献   

12.
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, Dc=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.  相似文献   

13.
异核配合物[Co(Ⅲ)(Hdmg)2(H2O)2Mn(Ⅱ)Cl3]的合成与晶体结构   总被引:1,自引:0,他引:1  
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, Dc=1.857 g·cm-3, F(000)=980.00, μ(Mo)=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.  相似文献   

14.
黄春芳  陈华龙 《无机化学学报》2007,23(12):2035-2038
合成了一个Mn(Ⅱ)的配合物[Mn(NPA)2(Phen)(H2O)2](NPA=N-苯基代邻氨基苯甲酸,Phen=邻菲咯啉),经红外光谱、紫外光谱、元素分析、差热,X射线单晶衍射等表征,其晶体结构为单斜晶系,C2/c空间群。标题配合物中的Mn原子与2个N-苯基代邻氨基苯甲酸的2个氧原子、1个Phen的2个N原子,2个水分子的氧原子形成六配位八面体结构。  相似文献   

15.
本文用水热法合成了2个稀土配位聚合物[M(tddc)(NO3)(H2O)4]·2H2O[M=Eu (1),M=Dy (2)],并对它们进行了元素分析、红外光谱、热重等分析,研究了它们的荧光性质,并用X-射线单晶衍射测定了配合物的单晶结构。两者的晶系都属于三斜晶系,P1空间群。荧光实验表明配合物1在常温下具有很强的荧光。  相似文献   

16.
我们以4,5-双四唑咪唑(H3BTI)为能量配体,利用水热法构筑了一例新型含能配合物[Co4(HBTI)4(H2O)8](1)。晶体结构测定表明配合物1呈中心对称的四核结构,中心离子Co(Ⅱ)呈六配位的八面体几何构型。此外,结合Kissinger和Ozawa-Doyle两种方法对1进行非等温热动力学分析,并基于密度泛函理论计算出1的爆轰性能相关参数。配合物1的摩擦感度高于360 N,且撞击感度高于40 J。配合物1可同时催化高氯酸铵(AP)和1,3,5-三硝基-1,3,5-三嗪烷(RDX)的燃烧分解反应,其分解温度分别提前了25和11℃。  相似文献   

17.
设计并合成了一个含咪唑基团的柔性双齿配体:1,3-二(咪唑基-1′-甲基)-5-甲基苯(dimb)(1),并进行了 1H NMR和结构表征。通过dimb与高氯酸钴的反应,得到了一个新型的具有二维网状结构的配合物:[Co(dimb)2(MeOH)2](ClO4)2(2)。X-射线晶体结构测定表明,这两个化合物的晶体学参数分别为:配体(1)属单斜晶系, 空间群  相似文献   

18.
A new coordination complex [Cu(Ⅱ)(DETA)]3[Cr(CN)6]2·5H2O (DETA=diethylenetriamine) was synthesized, its crystal structure and magnetic properties were determined. The crystal crystallizes in monoclinic space group P21/c, with unit cell constants a=2.056 6(7) nm, b=1.440 7(5) nm, c=1.513 3(5) nm, β=95.996(6)°, and V=4.459(3) nm3, Z=4, Dc=1.499 g·cm-3, F(000)=2 060,μ(Mo )=1.936 mm-1, R1=0.052 3, wR2=0.106 2. The structure consists of a one-dimensional chain of [Cu(DETA)]2[Cr(CN)6]+ and binuclear [Cu(DETA)][Cr(CN)6]-. The coordination geometries around Cu2+ atoms are distorted square-based pyramidal and distorted square, respectively. Magnetism studies show that there are ferromagnetic interactions between Cu2+ and Cr3+ ions. CCDC: 272213.  相似文献   

19.
本文通过溶剂热法合成了三个基于4'-羧基-2,2':6',2"-三联吡啶(HL)的单核配合物,其分子式为[ML2]·4H2O(1,M=Zn(Ⅱ);2,M=Cu(Ⅱ);3,M=Fe(Ⅱ)),并分别对其进行了元素分析、波谱、单晶和粉末衍射表征。晶体结构测试结果表明3个配合物为异质同晶结构,都属于四方晶系的I42d空间群。配合物1~3都是1个二价金属离子和2个羧基未配位且去质子化的三齿螯合配体L配位形成的单核结构,通过分子间π-π堆积和氢键作用拓展成三维超分子网络结构。由于二价Zn离子的全充满d10配位构型,配合物1与其配体相比具有明显的室温固态蓝色荧光发射性质。  相似文献   

20.
本文通过溶剂热法合成了三个基于4’-羧基-2,2’∶6’,2"-三联吡啶(HL)的单核配合物,其分子式为[ML2]·4H2O(1,M=Zn(Ⅱ);2,M=Cu(Ⅱ);3,M=Fe(Ⅱ)),并分别对其进行了元素分析、波谱、单晶和粉末衍射表征。晶体结构测试结果表明3个配合物为异质同晶结构,都属于四方晶系的I42d空间群。配合物1~3都是1个二价金属离子和2个羧基未配位且去质子化的三齿螯合配体L配位形成的单核结构,通过分子间π-π堆积和氢键作用拓展成三维超分子网络结构。由于二价Zn离子的全充满d10电子构型,配合物1与其配体相比具有明显的室温固态蓝色荧光发射性质。  相似文献   

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