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1.
三元体系LaCl3—Am(Am=Cly,Glu,Ser)—H2O(25℃)的研究   总被引:15,自引:2,他引:13  
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1 INTRODUCTION Recently much more attention has been paid to palladium bidentate chelate. Such as palladium diphosphino complexes can be used to catalyze crossing-coupling[1] and monocoupling[2]; palladium diamine complexes can be used to catalyze norbornene polymerization[3] and it can also bind to biologically important molecules[4]. Owing to the above reasons, palladium(Ⅱ) complexes with these ligainds are well researched. However, the neutral analogs with derivatives of dithiole are…  相似文献   

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The synthesis,the crystal structure and the reaction of the hetero-binuclear complex[MnRe(CO)6(μ-SH)(μ-SC(H)PPr^i3)(PPh3)] are reported.The results of single crystal X-ray structure analysis showed that the fragments Mn(CO)3 and Re(CO)3 were bridged by SH and SC(H)PPr^i3.The title complexes can react with Bu^nLi and RX forming complexes MnRe(CO)6(μ-SR)(μ-SC(H)PPr^i3)(PPh3)](R=Me,CH2CH=CH2,SnBu3^n).  相似文献   

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本文合成了2-二甲胺基6-羟基-4-基嘧啶与铜(Ⅱ),锌(Ⅱ)的配合物,并用元素分析,红外,紫外光谱,差热-热重和摩尔电导等方法对产的性质进行了表征。  相似文献   

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合成了铜与苯基羧酸根「PCA^-=苯甲酸根(Bz^-),2-苯乙酸根(PAc^-),3-苯丙酸根(PPr^-),4-苯丁酸根「PBu^-)」和2,2’-联吡啶衍生物(dpx:2,2‘联吡啶胺dpa,2,2’-叩头 吡啶酮dpk,2,2‘-联吡啶甲烷dpm)三大系列12种新的三元配合物。用元素分析,摩尔电导,红外光谱,^1  相似文献   

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马顺利  鲁成学 《结构化学》1996,15(6):454-457
用凝胶法合成了标题化合物[NH4(15-C-5)2][Cd2(SCN)5](15-C-5=C10H20O5)的晶体,并对其进行了红外光谱,元素分析等各项物理性质的测试,并经X射线单晶结构分析得到了配合物的全部晶体学数据:Mt=973.78,正交晶系,空间群Pnma,晶胞参数α=10.507(1)A,b=16.584(2)A,c=23.494(2)A,V=4093.8(3)A^3,Z=4,Dc=2.  相似文献   

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A series of 2,6-bis(imino)pyridyl iron and cobalt complexes bearing p-substituent [2,6-(ArN=CMe)2C5H3N]- MCl2 (Ar=2,6-Me2C6H3, 2,4,6-Me3C6H2, 2,6-Me2-4-BrC6H2, 2,6-Me2-4-ClC6H2, 2,4-Me2-6-BrC6H2, 2,4-Me2-6- ClC6H2, while M=Fe, Co) have been synthesized and investigated as catalysts for ethylene polymerization in the presence of modified methylaluminoxane as a cocatalyst. The electron effect and positions of the substituent of pyridinebisimine ligands were observed to affect considerably catalyst activity and polymer property.  相似文献   

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1 INTRODUCTION An interesting aspect in the studies of copper-sulfur coordination chemistry is the apparent tendency of Cu(Ⅰ) ions to form various clusters with sulfur ligands. The coordination chemistry of Cu(Ⅰ) has been studied extensively owing to the importance of Cu(Ⅰ) in biological systems and copper-sulfur bonds detected in some metallopro- teins[1]. More recently, remarkably rich photoluminescence properties have been found in the tetranuclear complexes[2~5] and the cage-ty…  相似文献   

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铜(Ⅱ)(溴代苯并—15—冠—5)配合物的研究   总被引:3,自引:2,他引:3  
董文魁 《应用化学》1993,10(4):89-91
苯并冠醚对碱金属、碱土金属及稀土金属离子具有特殊的配位能力,但它们与溶剂化能量较大的“软酸”过渡金属离子配位较难。通过在冠醚苯环上引入吸电子取代基团减弱冠醚的碱性,是这类过渡金属大环配合物研究的一个重要方面。从模拟金属蛋白中铜(Ⅱ)离子的位置看,铜(Ⅱ)离子冠醚配合物的研究具有一定的意义。本文在过去工作的基础上,合成了高氯酸铜与4′-溴苯并-15-冠-5(L_A)及4′,5′-二溴苯并-15-冠-5(L_R)两种新配合物,并研究了它们的有关物理、化学性质。  相似文献   

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合成了锌(Ⅱ)与2,2’-联吡啶胺和3-苯丙酸混配配合物「Zn(dpa)(PPr)2」.2H2O,并测定其晶体结构。晶体属三斜晶系,P1空间群,晶胞参数a=10.541(1)nm,b=11.333(1)nm,c=11.698(1)nm,  相似文献   

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Two novel complexes {[Co(A-glu)(Im)2]·0.5H2O}n (1) and [Cd(A-glu)(Im)3]n (2) (H2A-glu=N-acetyl-L-glutamic acid, Im=imidazole) have been synthesized from the reaction of H2A-glu with Co(CH3COO)2·4H2O or Cd(CH3COO)2·2H2O in the presence of Im. Both of the complexes display different coordination environment and similar one-dimensional chain structure. The magnetic susceptibility measurements for 1 show a weak antiferromagnetic interaction between two cobalt(Ⅱ) ions bridged by A-glu ligand. The complex 2 exhibits an intense fluorescent emission in solid state at room temperature.  相似文献   

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ZHAO Xiao-Fan 《结构化学》2007,26(6):637-641
The dinuclear Schiff base cadmium(Ⅱ) complex [Cd2(C10H15N3)2(N3)2 (μ1,1-N3)2] was prepared and characterized by elemental analysis, IR spectrum, and single-crystal X-ray dif- fraction. The crystal belongs to the monoclinic system, space group P21/n with a = 10.819(2), b = 11.058(2), c = 12.766(3)A, β = 102.456(2)°, V = 1491.3(7)A^3, Z = 2, Dc = 1.665 g/cm^3, Mr = 747.42, λ(MoKα) = 0.71073 (A), μ = 1.470 mm^-1, F(000) = 744, R = 0.0307 and wR = 0.0584. A total of 3420 unique reflections were collected, of which 2575 with Ⅰ 〉 2σ(Ⅰ) were observed. There is a crystallographic inversion centre at the midpoint of the two metal atoms in the complex. Each CdⅡ atom in the complex is in a distorted octahedral coordination. The molecules in the crystal are linked through the intermolecular hydrogen bonds of N-H…N and C-H…N, forming a three- dimensional network.  相似文献   

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