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通过水热方法合成了一种新颖的异金属金属-异烟酸无机-有机杂化体[Zn0.5(H2O)]{(Hg2Cl5)[Er(C6NO2H4)3(H2O)2]}(HgCl2)·0.5CH3OH·0.5H2O (1)并对其进行了单晶X-射线衍射结构表征。该化合物是首例4f-3d-5d多金属-异烟酸配合物。化合物1属于单斜晶系C2/c空间群,每个单胞中有8个分子,晶体学参数为:a = 34.165(4) Å,b = 9.4692(8) Å,c = 24.575(3) Å,β = 115.090(5)°,V = 7200(1) Å3,C18.50H21Cl7ErHg3N3O10Zn0.50,Mr = 1495.25,Dc = 2.759 g/cm3,T = 293(2) K,μ(MoKα) = 15.954 mm-1,F(000) = 5400, R1/wR2 = 0.0561/0.0909,共有6468个独立衍射点,其中[I > 2σ(I)]的有3157个。该化合物具有新颖的二维{(Hg2Cl5)[Er(C6NO2H4)3(H2O)2]}层状结构,由Hg2Cl5–连接[Er(C6NO2H4)3(H2O)2]链形成。该二维层和氯化汞及结晶水之间通过氢键形成三维结构,甲醇分子和水合锌离子位于该三维结构的空隙中。对化合物1的磁性测试显示该化合物具有反铁磁作用。 相似文献
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1 INTRODUCTION Schiff base ligands have been studied for a longtime due to the instant and enduring popularity fromtheir easy synthesis and versatility complexes. Theyplay an important role in the development of coor-dination chemistry as well as inorganic biochemistry,catalysis, optical materials and so on[1, . Consider- 2]able attention has been focused on the syntheses andstructures of copper(II) and nickle(II) complexes.The nickel complexes with multidentate Schiff baseligands have … 相似文献
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1INTRODUCTION Imidazole(Him)or pyrazole(Hpz)and its deriva-tives in their deprotonated forms have been exten-sively employed in building a large variety of po-lynuclear complexes and polymeric systems[1].A number of metal imidazolates have been studied owing to their fascinating properties and great poten-tial applications,such as high thermal stability[2],magnetic hysteresis[3],luminescence[4]as well as anticorrosive[5]and microbial activities[6].As an im-portant branch,copper imidazolat… 相似文献
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A binuclear vanadium complex NH4[(VⅣO)2(μ2-O)(nta)2][EuⅢ(H2O)9] was synthesized by reaction of NH3VO3, nitrilotriacetic acid and EuCl3 in one aqueous solution. The crystal X-ray analysis shows that the complex contains one binuclear vanadium anion [(VⅣO)2(μ2-O)(nta)2]4- and one [EuⅢ(H2O)9]3+ cation. The molecules are built up to a three-dimensional supramolecular structure through hydrogen bonding. CCDC: 238716. 相似文献
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The crystals of the title compounds (H3O)(C3H5N2)[Mn(OH)6Mo6O18]·3.5H2O 1 and (H3O)3[Co(OH)6Mo6O18]·7H2O 2 have been prepared and structurally determined by X-ray single-crystal diffraction. Compound 1 crystallizes in monoclinic, space group C2/c with a = 21.5018(9), b = 10.9331(5), c = 11.8667(5)A,β = 95.3570(10)o, V = 2777.5(2)A3, Z = 4, Dc = 2.802 g/cm3, Mr = 1171.80,μ(MoKα) = 3.173 mm-1, F(000) = 223, the final R = 0.0458 and wR = 0.1041 for 2093 observed reflections (I>2σ(I)); Compound 2 crystallizes in monoclinic, space group P21/c with a = 11.4042(12), b = 10.9481(11), c = 11.6722(12)A, β= 99.948(2)o, V = 1435.4(3)A3, Z = 2, Dc = 2.794 g/cm3, Mr = 1207.80,μ(MoKα) = 3.223 mm-1, F(000) = 1160, the final R = 0.0544 and wR = 0.1066 for 1906 observed reflections (I > 2σ(I)). Both compounds 1 and 2 adopt the Anderson structure, in which the anion is of centrosymmetry and formed by six octahedral edge-sharing MoO6 units surrounding the central MO6 (M = Mn or Co) octahedron. 相似文献
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1 INTRODUCTION Diazoles have both a pyridine-type nitrogen and a pyrrole-type nitrogen (imino group), so they can act as bifunctional groups to coordinate with many metal ions or Lewis acids giving a variety of products[1, 2]. Recently researches on the pyrazole ligand have been focused on the following three sections. (i) The first is that the ligand acts as a bridged ligand and coordinates to metal forming di- and polynuclear complexes. Such system arouses much interest mainly because o… 相似文献
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