共查询到17条相似文献,搜索用时 125 毫秒
1.
利用微波技术合成了配合物[Gd2(Gly)6(H2O)4](ClO4)6(H2O)5, 进行了化学成分分析、红外表征和热重分析. 应用X衍射仪测定其晶体结构, 该晶体为一维链结构, 属三斜晶系, P 空间群, 晶胞参数: a=1.1569(17) nm, b=1.4138(2) nm, c=1.5642(2) nm, α=96.910(2)°, β=102.735(2)°, γ=105.512(2)°, V=2.3606(6) nm3, Z=2, Dc=2.144 g•cm-3. 采用精密溶解-反应量热计, 通过设计热化学循环, 计算出了该配合物的标准摩尔生成焓为 -(7960.73±3.23) kJ•mol-1. 相似文献
2.
The crystal structure of [Bi2Cl10(H2-Norf)4(H2O)8] (1) comprises [H2-Norf]^ cations and [Bi2Cl10]4^- anions, that are loosely associated via H-bonding interactions, as well as water molecules that also participate in H-bonding interactions. Strong blue-fluorescent emission of 1 at solid state is observed at the room temperature. CCDC:238237. 相似文献
3.
[Cu(TO)2(H2O)4](PA)2 was prepared by mixing the aqueous solution of 1,2,4-triazol-5-one(TO) and Cu(PA)2. The molecular structure and crystal structure of the title complex was determined by X-ray single crystal diffraction method. The crystal is triclinic, space group with a=0.7321(1)nm,b=0.7474(2)nm,c=1.3649(3)nm;α=88.65(2)°,β=85.63(1)°,γ=63.35(1)°;V=0.6655(2)nm3,Z=1. The Cu2+ coordinated with two TO molecule through its 2-nitrogen atom and four water molecules and showed an octahedral configuration. 相似文献
4.
在pH=7.5的水溶液中, Na2WO4•2H2O, NaAsO2, CoCl2•6H2O与对氨基吡啶反应, 得到了一种新的夹心型杂多钨酸盐Na6(C5H7N2){[Na(H2O)2]3Co(H2O)5[Co(H2O)]3(AsW9O33)2}•27H2O单晶, 用X射线单晶衍射法及元素分析确定了其结构, 晶体属三斜晶系, P 空间群, 其晶胞参数为: a=1.3276(8) nm, b=1.7581(10) nm, c=2.4381(14) nm, α=70.954(9)°, β=86.663(9)°, γ=72.885(9)°, V=5.136(5) nm3, Z=2, R1=0.0608, wR2=0.0848 [I>2σ(I)]. 在{[Na(H2O)2]3Co(H2O)5[Co(H2O)]3(AsW9O33)2}7-阴离子中, 一个Co2+与聚阴离子{[Na(H2O)2]3[Co(H2O)]3(AsW9O33)2}9-的一个端基氧共价连接, Co2+呈现出5和6两种配位数, 质子化的氨基吡啶正离子作为抗衡离子存在于晶体之中. 对标题化合物进行了IR, UV-Vis, TG-DSC表征. 对该化合物、Na2WO4•2H2O及CoCl2•6H2O催化H2O2氧化乙醛的活性进行了比较研究, 该化合物的催化活性远优于简单化合物Na2WO4•2H2O和CoCl2•6H2O. 相似文献
5.
在pH=7.5的水溶液中, Na2WO4•2H2O, NaAsO2, CoCl2•6H2O与对氨基吡啶反应, 得到了一种新的夹心型杂多钨酸盐Na6(C5H7N2){[Na(H2O)2]3Co(H2O)5[Co(H2O)]3(AsW9O33)2}•27H2O单晶, 用X射线单晶衍射法及元素分析确定了其结构, 晶体属三斜晶系, P 空间群, 其晶胞参数为: a=1.3276(8) nm, b=1.7581(10) nm, c=2.4381(14) nm, α=70.954(9)°, β=86.663(9)°, γ=72.885(9)°, V=5.136(5) nm3, Z=2, R1=0.0608, wR2=0.0848 [I>2σ(I)]. 在{[Na(H2O)2]3Co(H2O)5[Co(H2O)]3(AsW9O33)2}7-阴离子中, 一个Co2+与聚阴离子{[Na(H2O)2]3[Co(H2O)]3(AsW9O33)2}9-的一个端基氧共价连接, Co2+呈现出5和6两种配位数, 质子化的氨基吡啶正离子作为抗衡离子存在于晶体之中. 对标题化合物进行了IR, UV-Vis, TG-DSC表征. 对该化合物、Na2WO4•2H2O及CoCl2•6H2O催化H2O2氧化乙醛的活性进行了比较研究, 该化合物的催化活性远优于简单化合物Na2WO4•2H2O和CoCl2•6H2O. 相似文献
6.
配合物1由醋酸镉和Nahca(对羟基肉桂酸钠)在水溶液中反应得到,配合物2由醋酸铜,Hhca和phen在水和乙醇混合溶液中反应得到。配合物1属正交晶系,Pbcn空间群。配合物2属单斜晶系,C2/c空间群。配合物1和2中配体中的羧酸根与金属离子都是螯合配位的,末端羟基没有参与配位。配合物1和2的结构中都包含了丰富的氢键。通过氢键作用,配合物1形成了三维网状超分子结构,配合物2形成了二维层状超分子结构。 相似文献
7.
一维链状配位聚合物[M(H2bpb)(H2O)4](SO4)2·6H2O[M=Zn(Ⅱ),Cu(Ⅱ)]的合成及晶体结构表征 总被引:3,自引:0,他引:3
设计并合成了一个含吡啶基团的柔性配体:N,N′-Bis(3-pyridylmethyl)-1,4-benzenedimethylamine(bpb)。通过bpb与硫酸锌及硫酸铜反应得到了两个新型具有一维链状结构的配位聚合物:[M(H2bpb)(H2O)4](SO4)2·6H2O[M=Zn(Ⅱ) 1,Cu(Ⅱ) 2]。X-射线晶体结构测定表明,这两个 相似文献
8.
The complex, {[La2(β-ala)6(H2O)4](ClO4)6·H2O}n, was synthesized in aqueous solution and its crystal structure was determined by X-ray diffraction method .The crystal is triclinic with space group of .The cell pa-rameters are a=0.946(1)nm, b=1.2917(1)nm, c=2.1726(3)nm,α=76.79(1)°, β=80.85(1)°,γ=83.35(1)°, V=2.5429(5)nm3, Z=2, Dc=1.958g·cm-3.The complex is an one-dimensional infinite chain. The coordination number of lanthanum ion is nine, forming a distorted tricapped trigonal prism. 相似文献
9.
本文用氯化钴、间苯二甲酸钠、1-乙基咪唑在乙醇和水的混合溶剂中反应得到了配位聚合物[Co(ip)(Eim)2]n(其中ip-2为间苯二甲酸二价阴离子,Eim为1-乙基咪唑),用X单晶衍射方法测定了其晶体结构.晶体属单斜晶系.P21/c空间群.配合物结构中含有沿着b轴延伸的"zigzag"链,每个Cu原子分别与2个N原子、2个O原子进行配位,形成了一个扭曲的四面体结构.热重分析表明配合物的分解经历了3个阶段.电化学研究显示配合物中的Co2+/Co3+氧化还原是一个准可逆的过程. 相似文献
10.
镧系金属硫酸盐由于在稀土分离等方面具有重要的应用而受到广泛关注。但是,因其适于结构测定的单晶相对难以得到,迄今,关于稀土硫酸盐的结构报道仍然较少,且主要局限于水合硫酸盐和三元硫酸盐.近几年中,基于硫酸根与磷酸根在结构上的相似性,借鉴在水热/溶剂热体系中采用有机胺作模板剂大量合成具有空旷骨架结构的微孔磷酸盐的成功经验,以有机胺为模板剂合成具有空旷骨架结构的镧系金属硫酸盐的工作也已见诸报道.在这些化合物中,由于硫酸根配位方式的多样性和稀土元素配位数和配位构型的可调变性,展现出了一些有趣的结构特征. 相似文献
11.
K.V Narasimhulu J.L Rao 《Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy》1997,53(14):2605-2613
EPR spectra of VO2+ ions doped in single crystals of Cs2Co(SO4)2.6H2O single crystals have been studied at various temperatures (390–103 K) on X-band frequency. The detailed EPR analysis shows three vanadyl complexes with differing intensities. The g and A tensors are found to be axially symmetric. The intense vanadyl complexes in the lattice are found to occupy the Co2+ substitutional sites, whereas the weak vanadyl complex at the interstitial sites. The optical absorption spectrum at room temperature shows three absorption bands characteristic of VO2+ ions in tetragonal symmetry. By correlating the EPR and optical data, the molecular bonding coefficients and the Fermi contact interaction terms have been evaluated and discussed. The line broadening of VO2+ spectra on cooling the crystal is explained on the basis of spin-lattice relaxation narrowing. The spin-lattice relaxation time for the host Co2+ ions has been estimated at various temperatures. 相似文献
12.
The new compound was prepared by the reaction of Cd(ClO4)2·6H2O,1,10-phenanthroline (phen)and picric acid (HPA)(ratio 1∶3∶2) in methanol-aqueous solution refluxing for 4 hours. The crystals used for X-ray analysis was obtained by slow evaporation of the solution at room temperature. The crystal compound is in triclinic with space group with a=1.1363(4)nm,b=1.2593(2)nm,c=1.3972(4)nm,α=93.97(2)?,β=100.84(3)?,γ=106.29(2)?,Z=2,V=1.8690(9)nm3,Dc=1.715g·cm-3, μ(MoKα)=0.677mm-1,F(000)=972,R=0.0907,wR=0.2240. In the complex, the Cd(Ⅱ) cation is octahedrally coordinated to two 1,10-phenanthroline ligands and two water molecules in cis disposition. As outer sphere, picrate anions are combined with inner by hydrogen bond and static electricity interaction. 相似文献
13.
Two copper complexes with a new multi-sulfur 1,2-dithiolene ligand, C[Cu(cddt)2] (C=tetrabutylammoni-um, n-Bu4N+; tetraphenylphosphonium, Ph4P+; cddt = 4a, 6, 7, 7a-5H-cyclopenta[b]-1,4-dithiin-2,3 dithi-olate) have been synthesized and characterized by electrochemical studies, IR, EA, etc. The structure of (Ph4P)[Cu(cddt)2] was determined by single crystal X-ray analysis. The complex was crystallized in the triclinic, space group P1 with the cell dimensions a=10.460(2)?, b=13.000(3)?,c=16.270(3)?, α=86.68(3)°,β= 71.92(3)°,γ=66.66(3)° and Z=2. R1=0.0548, wR2=0.1358 for 6786 independent reflections. The four S atoms surround the Cu atom [CuS4] core is a square-planar environment. 相似文献
14.
The title complex has been synthesized by the reaction of silicotungstic acid, 1,10-phenanthroline (phen) monohydrate and cupric acetate. The crystal structure belongs to triclinic system, space group P1 with a=1.158 46(15) nm, b=1.658 8(2) nm, c=1.664 4(2) nm, α=82.090(2)°, β=76.001(2)°, γ=86.531(2)°, and V=3.072 6(7) nm3, Dc=3.887 g·cm-3, Z=2, F(000)=3 196. R1=0.086 7, wR2=0.185 8. The structure shows that the copper(Ⅱ) atom is coordinated with two nitrogen atoms from the one phen and three oxgygen atoms from three water, forming a distorted square-pyramid configuration The cyclic voltametric behavior of the complex is also reported. CCDC: 298807. 相似文献
15.
采用缓慢蒸发法,在水溶剂中合成了含氮配体单核Ni(Ⅱ)配合物[Ni(py)3(H2O)3](1,5-nds)(py=pyridine,1,5-nds=1,5-萘二磺酸根离子)。采用X射线单晶衍射、红外光谱、热分析和紫外可见光谱等方法对配合物进行了表征。X射线单晶衍射表征结果表明,该配合物晶体属于单斜晶系,空间群为C2/c。晶体学参数:a=1.569 46(17)nm,b=1.219 95(12)nm,c=1.454 71(16)nm,β=14.547 1(16)°,V=2.765 1(5)nm3,Z=4。考察了该配合物的磁性和荧光性质。 相似文献
16.
A novel heteropoly compound, containing two kinds of coordinated cations, [K(H2O)2Ni(H2O)6]2[V10O28], has been synthesized through routine process and characterized by elemental analyses, IR, 51V NMR and single crystal X-ray diffraction. It crystallizes in the triclinic system, space group P1 with a=0.87382(17) nm, b=1.075 4(2) nm, c=1.111 1(2) nm, α=65.10(3)°, β=75.01(3)°, γ=70.63(3)°, V=0.884 8(3) nm3 and Z=1. The X-ray analysis reveals that the two kinds of coordinated cations are linked by three shared coordinated water molecules, and K+ cations coordinate with ten oxygen atoms: five of which come from V10O286- anion, the other five from water molecules. The title compound exhibits extended 2D array building up of V10O286- groups connected by ten-coordinated K+ cations. The hexahydrated nickel cations Ni(H2O)62+ lie in neat apposition to three adjacent V10O286- clusters. CSD: 413271. 相似文献