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Synthesis and Crystal Structure of [Na(DB24C8)]2(WMo5O19)   总被引:4,自引:1,他引:4  
鲁晓明  刘顺诚 《结构化学》1995,14(2):157-160
SynthesisandCrystalStructureof[Na(DB24C8)]_2(WMo_5O_(19))¥LuXiao-Ming;LiuGuo-Xiang;TuShu-Jie;Liushun-Cheng(DepartmentofChemist?..  相似文献   

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本文取配合物晶体[Mn(H2O)4(NCS)2].(18-C-6)的一个分子片断进行CNDO/2半经验分子轨道理论计算,给出Mulliken键级,电荷分布和电子态密度等,探讨了其成键特性,结果表明,过渡金属配合单元[Mn(H2O)4(NCS)2]与18-C-6冠醚环之间的主要结合方式是定域化程度相当高的氢键,与来自实验测量的推测相一致。  相似文献   

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Introduction As developing high-energy, low toxicity and envi-ronment friendly primary explosive has been becoming a new and important investigation field, much attention has been paid to nitrogen-rich potassium coordination compounds for the sake of their low toxicity and little pollutions.1-11 In order to make good use of potassium compounds, the reaction of 2,4-dinitrophenol (DNP) and potassium hydroxide was designed, and the title compound potassium 2,4-dinitrophenate (KDNP) was obtained…  相似文献   

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谢学群  杨春龙  李前进 《结构化学》2007,26(9):1009-1012
The title compound [Mn(DPMT)2Cl2(H2O)2] (DPMT = 1-[[2-(2,4-dichlorophenyl)- 1,3-dioxolan-2-yl]methyl]-1H-1,2,4-triazole) was synthesized by the reaction of MnCl2·4H2O and DPMT in ethanol solution and its structure was determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P21/c with a = 23.913(4), b = 7.8883(13), c = 8.6291(14) , β = 95.816(3)o, V = 1619.4(5) 3, Z = 2, C24H26Cl6MnN6O6, Mr = 762.15, Dc = 1.563 g/cm3, μ = 0.950 mm-1, S = 1.045, F(000) = 774, R = 0.0462 and wR = 0.0981. The molecular structure is a centrosymmetric conformation, and two ligands are symmetrically located on both sides of the Mn atom. The manganese atom is surrounded by two nitrogen atoms from ligands, two chlorine atoms and two oxygen atoms from water molecules to form a slightly distorted octahedral geometry.  相似文献   

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吴文士  董美斌 《结构化学》1996,15(4):330-332
CrystalStructureof[Cd(pom)_2Cl_2]WuWen-Shi(DepartmentofChemistry,Hua-qiaoUniversity,Fujian,China,362011)DongMei-Bin;LiSong-Xia...  相似文献   

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董美斌  杨景海 《结构化学》1996,15(4):311-314
CrystalStructureofOrganometallicComplexZn(pom)_2I_2]DongMei-Bin;LiSong-Xian;ZhangHan-Hui(DepartmentofChemistry,FuzhouUniversdy...  相似文献   

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1 INTRODUCTION Salicylaldehyde salicyloylhydrazone (SHSH) and their deviatives show moderate fungicidal and anti- bacterial activities[1]. Rao has reported some novel lanthanoid complexes of salicylaldehydrazone. Va- rious polyhedral geometries such as distorted octa- hedron, pentagonal bipyramid and distorted square antiprism were tentatively proposed for the com- plexes used as excellent semi-conducting materials[2]. Tang has studied spectrofluorimetric determination of hydrogen perox…  相似文献   

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1 INTRODUCTION Synthesis of transition metal complexes with Schiff-base has been a subject of considerable importance [1,2]. They are not only good complexing agents for Schiff-base, but also good bactericide and antitumour agent [3,4]. At present, there is a spectacular growth in this field. Recently, some bridged binuclear complexes have received much attention on account of their biological relevance and condensed-phase magnetic properties[5,6]. Especially, the complexes containin…  相似文献   

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1 INTRODUCTION Cadmium (Ⅱ) complexes have been exten- sively studied from both chemical and structural views, mainly due to the capability of cadmium (Ⅱ) (shared by most d10 metal ions) to adopt different modes of coordination determined by the consideration of size, as well as electrostatic and covalent bonding forces[1]. And the field of coordination polymers has witnessed tremendous growth over the last decade[2]. Many coordination polymeric networks have been shown to posses intere…  相似文献   

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IntroductionThe chemistry of organotin( ) dithiocarba-mate complexes has been extensively studied due totheir biological activities[1_ 7] .Up to date,a largenumber of transition- metal complexes with dithio-carbamate have been synthesized and structurallycharacterized,including Ni( S2 CNC4H8O) 2 [8] ,Cu( S2 CNC4H8) 2 [9] ,Zn2 ( S2 CNC4H8) 4 [9] andFe( S2 CNC4H8O) 2 ( DMF) [10 ] . However,the chem-istry of the main- group metal complexes withdithiocarbamate has been scarcely studie…  相似文献   

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1 INTRODUCTION The syntheses and structures of carboxyl complex- es have captured the interest of chemists for years due to their potential applications in many fields, such as materials, medicine, molecular electro-che- mistry and biochemistry[1~3]. So far, to the best of our knowledge, cadmium complexes with aromatic carboxylic acid as ligands have been intensively studied[4~7], but those with heterocyclic carboxylic acid as ligands are much less. α-Furoic acid is widely used in orga…  相似文献   

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1 INTRODUCTION During the search of molecule-based materials with interesting properties such as catalysis, cla- thration etc., much attention has been focused on the synthesis of one-, two- and three-dimensional extended solids involving cadmium[1], as its d10 configuration permits a wide variety of geometries and coordination numbers. Rigid bridged ligands such as carboxylate groups are frequently used to construct these materials. Therefore, the coordi- nation chemistry of Cd(Ⅱ) ca…  相似文献   

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