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1 INTRODUCTION Over the past decades, extensive work has been carried out to study palladium complexes in organic synthesis, structural analysis, chemical reactivity, catalytic process, spectroscopy and functional mate- rials[1]. Especially the anti… 相似文献
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近年来,硫脲类金属配合物在配位化学、生物化学、医药等领域的研究一直受到广泛重视[1,2]。四氢化咪唑-2-硫酮(imdt)又称乙撑硫脲,是乙撑双二硫代氨基甲酸酯类农药的代谢产物。它属于硫酰胺杂环化合物,含—N(H)—C(=S)—=—N=C(—SH)—结构互变活性基团,表现出配位多样性,与金属铜可以形成单核[3]和双核[4,5]配合物。本文合成了四核Cu(I)配合物[Cu4(imdt)9](NO3)4·6H2O,对该配合物进行了元素分析和红外光谱表征,用单晶X-射线衍射测定了晶体结构。1实验部分1·1试剂与仪器配体四氢化咪唑-2硫酮(C3H6N2S,imdt)按文献合成[6],其它药品… 相似文献
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Two dinuclear nickel(II) complexes [Ni2(teta)3]Cl4·2H2O 1 and [Ni2(teta)3](NO3)4 2 (teta = triethylenetetramine) were synthesized by a solvothermal method and structurally characterized. Complex 1: orthorhombic, Pbca, a = 13.791(3), b = 13.078(3), c = 18.323(4) , V = 3304.8(12) 3, Z = 4, Mr = 733.98, Dc = 1.475 g/cm3, μ = 1.500 mm-1, F(000) = 1560, R = 0.0585 (I > 2σ(I)) and wR = 0.1243. Complex 2: orthorhombic, P212121, a = 7.8279(14), b = 14.209(3), c = 31.163(6) , V = 3466.2(11) 3, Z = 4, Mr = 804.19, Dc = 1.541 g/cm3, μ = 1.164 mm-1, F(000) = 1704, R = 0.0401 and wR = 0.0840 for 5950 observed reflections (I > 2σ(I)). Two Ni2+ ions are connected by one linear bridging teta ligand, forming a dinuclear [Ni2(teta)3]4+ cation. Each Ni2+ ion in 1 and 2 takes a distorted octahedral geometry with six coordinated N atoms from two teta ligands. The effect of different anions on the arrangement of [Ni2(teta)3]4+ cations has been discussed in view of H-bonding interactions. Thermal stability of 1 and 2 was also investigated. 相似文献
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以[Me4N]2[M4(SPh)10]和[Me4N]4[S4M10(SPh)16](M=Cd,Zn)为前驱体,采用簇合物裂解法合成了配合物(Bu4N)2[Cd(mnt)2]、(Bu4N)2[M(dmit)2](M=Cd,Zn)以及双核配合物(Me4N)2[Zn2(Sph)2·(S2TTF(SCH2)2)2].运用PM3计算方法得到了各种二硫纶盐配体中硫负离子的静电荷大小关系:mnt2->SPh->dmit2->[(MeS)2TTFS2]2-≈[(CH2S)2TTFS2]2-.在理论计算及实验结果的基础上,探讨了配体上硫负离子的静电荷大小与反应产物间的关系. 相似文献
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稀土与β-二酮及2-(2-吡啶)苯并咪唑三元配合物的研究 总被引:2,自引:0,他引:2
As useful fluorescent reagent, rare earth complexes with β-diketones have been extensively studied. Four new rare earth (La, Eu) ternary complexes with β-diketones, (benzoylacetone (Hbza), 2-thenoyltrifluoroacetone, (HTTA)) and organic base (2-(2-pyridyl) benzimidazole, (Hpbi)) have been synthesized and characterized by elemental analysis, IR, NMR. The general formulae of these complexes are [Ln(bza)3(Hpbi)] and[Ln(TTA)3(Hpbi)]. The effects of coordinated base on UV, especially on fluorescent properties of the complexes were discussed. The results showed that the dehydro-Hpbi, pbi-, strongly enhances the fluorescence of the complexes. 相似文献