共查询到20条相似文献,搜索用时 46 毫秒
1.
E. V. Alekseev S. S. Nosov E. V. Suleimanov N. G. Chernorukov E. V. Chuprunov 《Journal of Structural Chemistry》2003,44(3):506-510
The crystal structure of HAsUO6 4H2O was solved at 295 K by X-ray analysis. Reasons for structural changes due to temperature variation are analyzed. 相似文献
2.
3.
4.
5.
6.
Horst P. Beck Manfred Schramm Robert Haberkorn Robert Dinnebier Peter W. Stephens 《无机化学与普通化学杂志》1998,624(3):393-398
The synthesis of a hitherto unknown 6 : 5 phase in the quasi-binary system RbCl/PbCl2 and its structure determination is reported. The compound Rb6Pb5Cl16 crystallizes in the tetragonal space group P4/mbm with a large variety of different coordination polyhedra for the cations. Special feature of the structure is a statistical distribution of Rb and Pb at one of the cation sites with a ratio of 1 : 3 as defined by electroneutrality. There is no evidence for symmetry reduction by ordering. 相似文献
7.
8.
V. A. Emel'yanov I. A. Baidina S. A. Gromilov A. D. Vasiliev A. V. Belyaev 《Journal of Structural Chemistry》2000,41(6):1030-1034
This paper reports on a procedure for the synthesis of the compound [RuNO(NH3)3Cl(H2O)]Cl2. The complex was studied by IR spectroscopy and X-ray phase and X-ray diffraction analyses. Crystal data for RuCl3N4O2H11: a = 13.151(2), b = 6.852(1), c = 10.361(1) , V = 933.6(2) 2, space group Pna2
1
, Z = 4, d
calc = 2.181 g/cm3, d
exp = 2.178 g/cm3. The structure consists of the [RuNO(NH3)3Cl(H2O)]2+ complex cations and Cl– anions. The compound crystallizes as small orange red isometric orthorhombic crystals well soluble in water and insoluble in concentrated hydrochloric acid and organic solvents and is stable when stored in air. 相似文献
9.
L. V. Ivakina V. K. Bel'skii N. R. Strel'tsova P. A. Storozhenko B. M. Bulychev 《Journal of Structural Chemistry》1989,30(3):502-504
State Scientific-Research Institute of Chemistry and Technology of Organometallic Compounds. L. Ya. Karpov Scientific-Research Physical Chemistry Institute, M. V. Lomonosov Moscow State University. Translated from Zhurnal Strukturnoi Khimii, Vol. 30, No. 3, pp. 161–164, May–June, 1989. 相似文献
10.
ZHANG Rui-Bo ZHANG Jian WEN Yi-Hang CHENG Jian-Kai LI Zhao-Ji YAO Yuan-Gen② 《结构化学》2005,24(11):1302-1305
1 INTRODUCTION The polydentate ligand nitrilotripropionic acid, H3ntp[N(CH2CH2COOH)3], has attracted conside- rable research interest in constructing coordination polymers, designing organic-inorganic hybrid mate- rials[1], synthesizing supramolecular compounds[2], etc. due to its high degree of flexibility with three carboxylic acid moieties allowing for a variety of coordination through oxygen atoms[3]. It also pro- vides other versatile properties such as the possibili- ty of inter-… 相似文献
11.
12.
13.
14.
利用三苄基氧化锡与2-噻吩甲酸和2-唑甲酸反应, 合成了六聚体苄基锡氧2-噻吩甲酸酯(1)和六聚体苄基锡氧2-唑甲酸酯(2) 鼓形簇合物. 通过元素分析、红外光谱和X射线单晶衍射对其结构进行了表征. 测试结果表明: 化合物1属三斜晶系, 空间群P1, a=1.276 0(3) nm, b=1.305 6(3) nm, c=1.334 3(3) nm, α=105.65(3)°, β=96.27(3)°, γ=97.20(3)°, Z=1, V=2.099 7(7) nm3, Dc=1.809 g/cm3, μ=2.097 mm-1, F(000)=1 116, R=0.065 1, wR=0.129 2. 化合物2属三斜晶系, 空间群P1, a=1.224 0(4) nm, b=1.367 3(4) nm, c=1.374 4(4) nm, α=107.760(4)°, β=98.069(5)°, γ=91.480(5)°, Z=2, V=2.163 1(12) nm3, Dc=3.373 g/cm3, μ=3.799 mm-1, F(000)=2 136, R=0.038 2, wR=0.079. 它们均为鼓形簇状结构, 锡原子呈畸变的八面体构型. 化合物1通过分子间S…S近距离作用, 形成一维链状结构. 相似文献
15.
16.
17.
新型鼓状有机锡氧杂环羧酸簇合物[PhCH2Sn(O)(O2CC4H4N)]6·2CH2Cl2的合成和晶体结构 总被引:6,自引:0,他引:6
利用三苄基氧化锡与2-吡咯甲酸反应,合成六聚体-苄基锡氧2-吡咯甲酸酯簇 合物.通过元素分析、红外光谱、核磁共振氢谱和X射线单晶衍射对其结构进行了 表征.X射线单晶衍射测试结果表明:化合物为三斜晶系,空间群P1^-,α=1. 2644(3)nm,b=1.7416(4)nm,c=1.9285(4)nm,α=90.021(4)°,β=94. 585(4)°,γ=90.021(4)°,Z=2,V=4.2330(16)nm^3,Dc=1.715g/cm^3 ,μ=1.936mm^-1,F(000)=2136,R=0.0527,wR=0.0708.该化合物为鼓型 簇状结构,锡原子为畸变的八面体构型. 相似文献
18.
19.
20.
Harald Schäfer Marita Trenkel Claus Brendel 《Monatshefte für Chemie / Chemical Monthly》1971,102(5):1293-1304
A method for preparing chlorotungstic acid $$(H_3 O)_2 [W_6 Cl_8 i]Cl_6 a \cdot 6H_2 O$$ in good yield is given. On thermal degradation of the acid, the stages $$(H_2 O)_2 [W_6 Cl_8 ]Cl_6 ,[W_6 Cl_8 ]Cl_4 \cdot 2H_2 O and [W_6 Cl_8 ]Cl_4 $$ are isolable. Chlorotungstic acid and its partial Br i -substitution products can be precipitated almost quantitatively as $$(Oxin \cdot H)_2 [W_6 X_8 ]X_6 $$ When boiled with strong aqueous or aqueous-ethanolic HBr the substitution of Cl a and also partial Cl i /Br substitution occurs. In the same way I i can be introduced. The inverse reaction (substitution of Br i by Cl) is not possible. In ethanolic HB in the case of Cl i /Br substitution an induction period is observed. 相似文献