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Ohne Zusammenfassung 相似文献
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S. Eckhard 《Fresenius' Journal of Analytical Chemistry》1962,186(3):400-401
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V. V. Sharutin V. S. Senchurin O. K. Sharutina N. V. Somov A. V. Gushchin 《Russian Journal of Coordination Chemistry》2011,37(11):854-860
The complexes [Bu4N]2+[PtBr6]2− (I), [Ph4P]2+[PtBr6]2− (II), and [Ph3(n-Am)P]2+ (III) are synthesized by the reactions of tetrabutylammonium bromide, tetraphenylphosphonium bromide, and triphenyl(n-amyl)-tetraphenylphosphonium bromide, respectively, with potassium hexabromoplatinate (mole ratio 2: 1). After recrystallization
from dimethyl sulfoxide, complexes I, II, and III transform into [Bu4N]+[PtBr5(DMSO)]− (IV), [Ph4P]+[PtBr5(DMSO)]− (V), and [Ph3(n-Am)P]+[PtBr5(DMSO)]− (VI). According to the X-ray diffraction data, the cations of complexes IV–VI have a slightly distorted tetrahedral structure. The N-C and P-C bond lengths are 1.492(7)–1.533(6) and 1.782(10)–1.805(10)
?, respectively. The platinum atoms in the mononuclear anions are hexacoordinated. The dimethyl sulfoxide ligands are coordinated
with the Pt atom through the sulfur atom (Pt-S 2.3280(18)–2.3389(11) ?). The Pt-Br bond lengths are 2.4330(6)–2.4724(6) ?. 相似文献
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Ohne Zusammenfassung 相似文献
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V. V. Sharutin V. S. Senchurin O. A. Fastovets A. P. Pakusina O. K. Sharutina 《Russian Journal of Coordination Chemistry》2008,34(5):367-373
The reactions of tetraphenylantimony with hexachloroplatinic and chloroauric acids in benzene afford bis(tetraphenylantimony)
hexachloroplatinate (I) and tetraphenylantimony tetrachloroaurate (II), respectively. Compound II is also synthesized from tetraphenylantimony chloride and chloroauric acid in acetone. Bis(tetraphenylantimony) hexachlorostannate
(III) is synthesized from tin dichloride and tetraphenylantimony chloride in acetone or from tin tetrachloride and tetraphenylantimony
chloride in benzene. The crystal structures of compounds I–III are determined by X-ray diffraction analysis. The antimony atoms in the [Ph4Sb]+ cations have a distorted tetrahedral coordination (CSbC bond angles range from 105.7(1)° to 118.5(1)° (I), from 106.2(3)° to 114.4(3)° (II), and from 106.0(1)° to 117.1(1)° (III)). The Sb-C bond lengths vary in intervals of 2.094(2)–2.098(2), 2.087(7)–2.111(7), and 2.093–2.100(3) ?, respectively. The
coordination of the Pt and Sn atoms in complexes I and III is close to an ideal octahedral coordination with ClPtCl and ClSnCl bond angles of 88.68(2)°–91.32(3)° and 88.84(3)°–91.16(3)°,
respectively. The square coordination of the Au atom in complex II is slightly distorted: the Au-Cl bond lengths are 2.266(2)–2.277(2) ?, the ClAuCl bond angles are equal to 89.7(1)°–90.5(1)°,
the root-mean-square deviation of the atoms from the coordination plane being 0.004 ?.
Original Russian Text ? V.V. Sharutin, V.S. Senchurin, O.A. Fastovets, A.P. Pakusina, O.K. Sharutina, 2008, published in Koordinatsionnaya
Khimiya, 2008, Vol. 34, No. 5, pp. 373–379. 相似文献
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I. D. Sorokina A. F. Dresvyannikov R. A. Yusupov F. V. Devyatov 《Russian Journal of Applied Chemistry》2010,83(4):593-597
The possibility of synthesizing heteronuclear compounds in the systems based on Fe(II), Fe(III), Al(III), SO42−, Cl−-H2O-OH−, and NH3 was studied. A mathematical model based on data on the potentiometric titration was developed. The elemental and phase composition
and the structure of the compounds synthesized were determined by the XPA, DTA and NMR methods to optimize the conditions
of the synthesis. 相似文献
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Large-bite bisphosphite, 1,3-C6H4{OPOC10H6(μ-S)C10H6O}2: Synthesis, copper(I), and gold(I) complexes
Maravanji S. Balakrishna Pawan Kumar Joel T. Mague 《Journal of organometallic chemistry》2010,695(7):981-412
Large-bite bisphosphite ligand 1,3-C6H4{OPOC10H6(μ-S)C10H6O}2 (3), is obtained by reacting chlorophosphonite {OC10H6(μ-S)C10H6O}PCl (2) with resorcinol in the presence of triethylamine. Treatment of 3 with CuCl in 1:1 molar ratio produces a 1D-coordination polymer [CuCl{(-OC10H6(μ-S)C10H6O-)P(-OC6H4O-)P(-OC10H6(μ-S)C10H6O-)}-κP,κP]∞ (4) in good yield. Similar reaction of 3 with two equivalents of AuCl(SMe2) affords a dinuclear complex, [Au2Cl2{(-OC10H6(μ-S)C10H6O-)P(-OC6H4O-)P(-OC10H6(μ-S)C10H6O-)}-κP,κP] (5). Single crystal X-ray structures of the ligand 3 and the complexes 4 and 5 are reported. The gold complex 5 shows dimeric structure supported by strong Au···Au aurophilic interactions. 相似文献
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可燃冰矿藏中气体成分非常复杂,通过谱学分析对水合物样品成分进行指认具有重要意义.基于B97-D/6-311++G(2d,2p)的密度泛函理论(DFT)计算,我们系统地探索了构成水合物的两种标准水笼(51262和51264)包络十八种不同烷烃客体分子的稳定性. 从计算结果可以看出,除了3-甲基戊烷和2,3-二甲基丁烷两个烷烃客体分子,其它16个烷烃客体分子都可以被容纳在51262笼中;但是与51262笼不同,十八种烷烃客体分子都可以被容纳在尺寸较大的51264笼中. 同时,我们也模拟了五种直链烷烃和四种环状烷烃在51262和51264笼中相应的谱学特征,从拉曼谱图上可以看出,随着碳原子数量的增多,直链烷烃客体分子C―H键伸缩振动区的多数拉曼谱带向高波数移动,而环状烷烃客体分子C―H键伸缩振动区的拉曼谱带则向低波数移动. 这些结果为实验上通过拉曼谱测量指认水合物矿藏的成分提供理论参考. 相似文献
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Horst Müller 《Fresenius' Journal of Analytical Chemistry》1962,189(4):336-339
Zusammenfassung Es wurde die ionophoretische Trennung von ReCl6
2–, ReBr6
2– und ReO4
– unter Verwendung verschiedener Papiersorten untersucht. Am geeignetsten erwies sich das Papier 2045 b Gl von Schl. & Sch.
Herrn Prof. G. Brauer danke ich für Förderung. Für die Überlassung von Rheniumverbindungen bin ich der Fa. W. C. Heraeus, Hanau, verpflichtet. Die Neutronenaktivierung wurde freundlicherweise von den Herren Dr. Marth und Dr. Köhler von der Reaktorstation in Garching bei München vorgenommen. Das Bundesministerium für Atomkernenergie und Wasserwirtschaft unterstützte die Untersuchung durch eine Sachbeihilfe. 相似文献
Summary The ionophoretic separation of ReCl6 2–, ReBr6 2–, and ReO4 – has been examined using different kinds of paper. Best results have been obtained with the paper 2045 b Gl from Schleicher & Schüll.
Herrn Prof. G. Brauer danke ich für Förderung. Für die Überlassung von Rheniumverbindungen bin ich der Fa. W. C. Heraeus, Hanau, verpflichtet. Die Neutronenaktivierung wurde freundlicherweise von den Herren Dr. Marth und Dr. Köhler von der Reaktorstation in Garching bei München vorgenommen. Das Bundesministerium für Atomkernenergie und Wasserwirtschaft unterstützte die Untersuchung durch eine Sachbeihilfe. 相似文献
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V. V. Sharutin V. S. Senchurin O. K. Sharutina A. P. Pakusina O. A. Fastovets 《Russian Journal of Inorganic Chemistry》2010,55(9):1415-1420
Triphenylbenzylphosphonium tetrachloroaurate (I) and triethanolammonium tetrachloroaurate hydrate (II) were prepared by reacting tetrachloroauric acid in acetone with triphenylbenzylphosphonium and triethanolammonium, respectively.
Triphenylethylphosphonium hexachlorodicuprate (III) was synthesized from triphenylethylphosphonium chloride and copper chloride in acetone. The crystal structures of complexes
I to III were determined by single-crystal X-ray diffraction. The phosphorus atoms in complex I have a nearly undistorted tetrahedral coordination (CPC, 108.3°–110.6°; P-C, 1.788–1.793 ?). The coordination of nitrogen
atoms in the cations of complex II is a distorted tetrahedron (CNC, 111.7°–112.4°). The square coordination of aurum in I and II is only slightly distorted: the ClAuCl angles are 89.6°–90.3° (I) and 89.5°–90.6° (II) and the Au-Cl distances are 2.256–2.278 ? I) and 2.280–2.285 ? (II). The phosphorus atoms in complex III are tetracoordinated (CPC, 106.34°–111.73°; P-C, 1.790–1.795 ?). The copper atoms in III have a distorted tetrahedral coordination (ClCuCl, 98.48°–144.85°; Cu-Cl, 2.1999–2.3263 ?). The central fragment Cu2Cl2 in the anion of complex III is bent relative to the Cu2 axis (the chlorine atom deviates from the Cu2Cl plane by 0.27 ?). 相似文献
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E. V. Grechishnikova E. V. Peresypkina A. V. Virovets Yu.l N. Mikhailov L. B. Serezhkina 《Russian Journal of Coordination Chemistry》2007,33(6):458-465
The complexes [UO2(C6H4NO2)2(C6H5NO2) (I) and [UO2SO4(C6H5NO2)(H2O)] · H2O (II) were synthesized and studied by X-ray diffraction analysis. Crystals I are monoclinic: a = 7.0081(3), b = 14.9624(7), c = 9.1837(5) ?, β = 96.594(2)°, Z = 2, space group P21/m. Crystals II are triclinic: a = 6.8097(6), b = 9.3837(8), c = 10.4556(10) ?, α = 85.279(3), β = 75.434(3), γ = 69.180(3)°, Z = 2, space group
. The main structural unit of crystal I is a mononuclear fragment, which belongs to the crystal chemical group AB
2
01
M1 (A = UO
2
2+
, B01 are ions of pyridine-2-carboxylic (picolinic) acid, M1 are molecules of picolinic acid) of the uranyl complexes. The main structural unit of crystal II is a chain, which belongs to the crystal chemical group AT3M
2
1
(where T3-SO
4
2−
, M1 are water and picolinic acid molecules) of the uranyl complexes. Picolinic acid in complexes I, II was found to have a zwitterion structure.
Original Russian Text ? E.V. Grechishnikova, E.V. Peresypkina, A.V. Virovets, Yu.N. Mikhailov, L.B. Serezhkina, 2007, published
in Koordinatsionnaya Khimiya, 2007, Vol. 33, No. 6, pp. 468–475. 相似文献