共查询到20条相似文献,搜索用时 93 毫秒
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用硝酸镉与1-萘甲酸、邻菲罗啉水热合成了配合物[Cd(na)2(phen)2]·[Cd(na)2(phen)2]·3H2O (Hna=1-萘甲酸,phen=1,10-邻菲罗啉),并用X-射线单晶衍射、红外、热重和元素分析进行了结构表征.结果表明,该配合物属三斜晶系,P-1空间群,晶胞参数为:a=1.27123(16) nm,b=1.6369(4) nm,c=1.9656(2)nm,α=75.613(2)°,β=84.363(2)°,γ=71.5380(10)°,Z=2,V=3.7572(8) nm3.配合物包含两个离散的单核[Cd(na)2(phen)2]子单元和三个结晶水分子,并通过分子间氢键形成三维超分子结构.在335 nm的紫外光激发下,配合物发射出源于Na-之间电子跃迁的荧光. 相似文献
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以4,4’-氧化二苯四羧酸二酐和1,10-邻菲啰啉为配体在水热条件下合成了标题配合物,并用元素分析、红外光谱、X-射线单晶衍射以及热重分析对配合物进行了表征.晶体结构分析表明配合物为三斜晶系,P-1空间群a=11.190(2)(A),b=12.587(2) (A),c=13.097(3)(A),α=102.688(3)°,β=105.751(2)°,γ =92.615(2)°,V =1721.1(6)A3,Z=2.配合物为单核结构,相邻的单核分子通过氢键的识别作用形成一维超分子双链.π…π堆积作用和C-H…π之间弱相互作用将邻近超分子双链的进一步扩展为三维超分子结构. 相似文献
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《Inorganic chemistry communications》2002,5(12):1022-1027
The hydrothermal reaction of ciprofloxacin (1) with Cu(BF4)2·6H2O yields a copper complex having a molecular formula, [Cu(cf)2(BF4)2]·6H2O (cf = ciprofloxacin), which is characterized by spectroscopic and electrochemical measurements as well as single crystal X-ray studies [a=9.1079(13), b=9.6112(16), c=11.4542(18) Å, α=90.518 (19)°, β=99.160 (18)°, γ=93.315 (19)°, P1bar, Z=1]. The F2O4 donor atom set forms a (4+2) distorted octahedral geometry around the central copper atom; which has a highly facile copper redox couple (+0.23 V). The copper conjugate exhibits a significant enhancement in the antitubercular activity probably arising out of its rapid intracellular reduction leading to oxygen activation, which is detrimental to the mycobacteria. 相似文献
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X-ray crystallography reveals four isostructural lanthanide polymeric solids, [Ln2(atp)3(H2O)2]·dmf·4H2O (atp = 2-aminoterephthalate; dmf = N,N′-dimethylformamide; Ln = La (1), Ce (2), Pr (3) and Nd (4), respectively) that are obtained from the solvothermal synthesis which are crystallized in an interesting 3D polymeric framework with a (4,4,6)-linked {42·84}{44·62}2{48·66·8}2 fsy net topology. Upon excitation at 350 nm, they all show the solid state ligand-centered luminescences but both 2 and 3 also exhibit the weak lanthanide-based characteristic emissions in the visible region at room temperature. The cyclic voltammetric investigation indicates that 2 exhibits appreciable electrochemical activity for formaldehyde. 相似文献
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Güneş Süheyla Kürkçüoğlu Tuncer Hökelek Mehran Aksel Okan Zafer Yeşilel Hakan Dal 《Journal of Inorganic and Organometallic Polymers and Materials》2011,21(3):602-610
Three new complexes [M(deten)2Ni(μ-CN)2(CN)2]
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(M = Ni, Cu and Cd, deten = N,N-diethylethylenediamine) have been synthesized and characterized by chemical, thermal analysis, FT-IR and Raman spectroscopies.
The crystal structure of the Cd complex has been determined by X-ray single crystal diffraction. Structural study reveals
that the Ni2+ and Cd2+ ions are located on inversion centers, and adopt slightly distorted square-planar and octahedral geometries, respectively.
In the crystal structure, the intermolecular N–H⋯N hydrogen bonds link the polymeric chains into a two dimensional network.
Vibrational spectral data indicate the presence of two ν(C≡N) for complexes can be assigned to the terminal and bridging cyanides.
The decomposition reaction take places in the temperature range 30–1000 °C in the static air atmosphere. 相似文献
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The crystal structure of a novel [Cu2(μ3-CO3)(SCN)2(py)4]n complex has been determined. It comprises of [CuCO3Cu]n infinite chains, running along the a-axis, and is in this aspect similar to the previously described [Cu(CO3)(4-aminopyridine)2]·H2O complex. The FTIR spectrum of [Cu2(μ3-CO3)(SCN)2(py)4]n has been recorded and analyzed. A CuCO3Cu intrachain coupling between Cu(II) atoms has been found to be responsible for the weak ferromagnetic properties of [Cu2(μ3-CO3)(SCN)2(py)4]n. 相似文献
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采用溶液法合成了分子式为[Cu2(phen)2(OH)2(H2O)2][Cu2(phen)2(OH)2Cl2]Cl2.6H2O的配合物。通过元素分析、红外光谱、紫外光谱和X-射线单晶衍射对配合物进行了表征;此外,还对该配合物进行了非等温热分解动力学研究。研究表明,配合物中有两组双核配位单元,分别为[Cu2(phen)2(OH)2(H2O)2]2+和[Cu2(phen)2(OH)2Cl2];两个配位单元的中心原子铜均为五配位的,具有扭曲的四方锥结构,配合物通过氢键作用形成超分子结构。此配合物的热分解反应是分两步进行的,第一步反应的动力学方程为dαdT=Aφ.exp-E()R T3/2[(1-α)43(1-α)-13-]1-1,活化能E=151.8kJ/mol,指前因子lgA=16.9435;第二步反应的动力学方程为dαdT=Aφ.exp-E()R T32[(1-α)43(1-α)-13-]1-1,活化能E=201.5kJ/mol,指前因子lgA=7.5447。 相似文献
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双核铜配合物[Cu2(H2tea)2(dca)2]2·H2O的合成和晶体结构 总被引:2,自引:0,他引:2
合成了一个铜的双核配合物[Cu2(H2tea)2(dca)2]2·H2O(dca-=二氰胺盐;H3tea=三乙醇胺),通过元素分析和红外光谱对其进行了表征,并通过X-单晶衍射确定了其晶体结构.结果表明,该配合物属于单斜,空间群P21/c:a=2.102 9(6)nm,b=1.272 5(8)nm,c=1.888 4(8)nm;β=112.955 0(10)°,V=4.653 7(1)nm3,Mr=1 129.14,Dc=1.612 g/cm3,F(000)=2 328.0,R1=0.036 8(7 515),wR2=0.097 7(10 146),I>2σ(Ⅰ).晶胞中含有两个独立结构的双核铜[Cu2(H2tea)2(dca)2]分子和一个水分子.每个双核铜的两个Cu2+离子都是通过来自不同H2tea-中的两个已脱质子的羟乙基氧(μ2-O)桥连而成.其中一个独立结构的双核铜中,两个Cu2+均与配位原子形成六配位的拉长八面体.另一个独立结构的双核铜中,1个Cu2+与配位原子形成六配位的拉长八面体,而另1个Cu2+与配位原子形成五配位的四角锥. 相似文献
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Qing-Xiang Li Qiao Li Rong Chen Xiang-Liang Yang Jing-Yan Zhou Hui-Bi Xu 《Inorganic chemistry communications》2010,13(11):1293-1295
A novel tetranuclear copper(II) complex Na2[Cu4Na2(TACNTA)4(H2O)6]·(H2O)26, where TACNTA is 1,4,7-triazacyclononane-1,4,7-triacetate, was synthesized and characterized by X-ray crystallography. The result shows that each copper(II) ion is six-coordinated to three nitrogen atoms and three oxygen atoms of ligand TACNTA and adopts distorted octahedral coordination geometry. The superoxide (·O2?) dismutation activity of the complex was also investigated by the riboflavin–methionine–nitro blue tetrazolium assay. 相似文献
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Zhao-Xi Wang Bao-Lin Liu Jun Wang You Song 《Inorganic chemistry communications》2009,12(12):1179-1181
An octacyanotungstate(V)-manganese(II) bimetallic assembly [Mn(Me2-bipy)2]3[W(CN)8]2·9H2O (1) (Me2-bipy = 4,4′-dimethyl-2,2′-bipyridine) was synthesized in methanol and characterized by X-ray crystallography. X-ray analysis shows that complex 1 is a neutral, one-dimensional (1D) infinite chain polymer. Magnetic data analysis demonstrates a long-range magnetic interaction and two different antiferromagnetic coupling constants obtained by fitting between Mn and W ions in 1. 相似文献
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近年来配位聚合物因其结构多样性及在催化、药物载体和气体吸附脱附等方面具有潜在的应用价值[1-3]而得到迅速的发展。本文在水热条件下,成功的合成出一例新型的一维超分子化合物,[Ni(phen)3]2(1,2,4,5-H3BTC)2(1,2,4,5-H2BTC)·2H2O。X-射线单晶衍射分析表明,化合物属于三斜晶系,P1空间群,晶胞参数为a=1.2403(3)nm,b=1.2907(3)nm,c=1.4512(3)nm,α=96.261(5)°,β=106.500(6)°,γ=105.061(4)°,V=2.1086(8)nm3,Z=2。在该化合物中,[Ni(phen)3]2+阳离子与[H3BTC]-和[H2BTC]2-阴离子通过静电引力、分子间氢键和分子内氢键,形成一个一维超分子链状结构。 相似文献
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Lenka Klištincová Erik Rakovský Peter Schwendt Gustav Plesch R. Gyepes 《Inorganic chemistry communications》2010,13(11):1275-1277
The decavanadate with a novel glycine–glycinato complex of copper (II) in the cationic part, (NH4)2[Cu2(H2O)4(NH3CH2COO)2(NH2CH2COO)2]H2V10O28·6H2O (1), has been prepared and characterized by elemental analysis, infrared and EPR spectroscopies. The triplet X band EPR spectrum of powdered sample evidenced magnetic interaction between the Cu(II) atoms in the dimeric unit which is probably realized through the bridging water molecules in this part of the complex. A single crystal X-ray diffraction study revealed that the structure of 1 contains cationic copper complex with a rare Cu(H2O)2Cu double bridge. In this cation, a simultaneous bidentate N, O– and monodentate O– coordination of glycine to the same central atom was observed for the first time. 相似文献
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《Inorganic chemistry communications》2000,3(1):8-10
The reaction of Ph2Te with [RuCl2(CO)3]2 affords a monomeric ruthenium complex [RuCl2(CO)2(TePh2)2]. The X-ray structure shows the formation of the trans(Ph2Te), cis(Cl), cis(CO) isomer. The 13C NMR and 125Te NMR spectra of the complex are reported. 相似文献