Methanolothermal Design and Structure of Cesium Polyselenidotellurates Cs4TexSe16−x(x=1, 4) and Cs4Te9.74Se13.26with Ordered Se/Te Rings and Chains
作者： Michael Wachhold , William S. Sheldrick
关键词: Solid solution 、 Crystal structure 、 Atom 、 Crystallography 、 Isostructural 、 Structure (category theory) 、 Orthorhombic crystal system 、 Chemistry 、 Monoclinic crystal system 、 Caesium 、 Physical and Theoretical Chemistry 、 Inorganic chemistry 、 Materials Chemistry 、 Electronic, Optical and Magnetic Materials 、 Condensed matter physics 、 Ceramics and Composites
摘要: Abstract The methanolothermal reaction of Cs2CO3with Se in the presence Bi2Te3at 160°C yields two tellurium-poor mixed polychalcogenides general type Cs4TexSe16−x. Cs4TeSe15is isostructural with Cs4Se16and crystallizes orthorhombic space groupPbcmwitha=10.042(2),b=14.029(3),c=19.120(4) A,Z=4, andV=2693.6(10) A3. It contains discrete [TeSe15]4−anions, which a central Te atom is coordinated distorted square-planar manner by three Se2−5chains, one chelating. Cs2Te2Se6crystallizes monoclinic groupP21/cwitha=7.436(1),b=6.771(1),c=13.489(3) A,β=95.55(3)°,Z=2, andV=676.0(2) A3and Cs2Te8. If distances longer than 2.90 A are ignored, anionic structure may be described as [Te2Se6]2−chain atoms adopt third and sixth positions. Individual chains connected through Te···Se interactions lengths 2.922(2) 3.244(1) into sheets. When Sb2Te3is employed place Bi2Te3, Cs4[TeSe3]2·Te3Se3·1.5(Te3.21Se2.79) pyramidal [TeSe3]2−anions respectively ordered disordered TexSe6−xrings secondary bonds polymeric layers. Cs4Te9.74Se13.26crystallizes rhombohedral groupR 3 witha=b=12.022(2),c=44.072(9) A,Z=6, andV=5516(2)
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sci-hub.se 参考文章(38)
Christopher J. Warren, Sandeep S. Dhingra, Douglas M. Ho, Robert C. Haushalter, Andrew B. Bocarsly, Electrochemical Synthesis of New Sb-Te Zintl Anions by Cathodic Dissolution of Sb2Te3 Electrodes: Structures of Sb2Te54- and Sb6Te94- Inorganic Chemistry. ,vol. 33, pp. 2709- 2710 ,(1994) , 10.1021/IC00091A005
Robert C. Haushalter, Christopher J. Warren, Andrew B. Bocarsly, Douglas M. Ho, Electrochemical Synthesis of New SbTe Zintl Anions by Catholic Dissolution of Sb2Te3 Electrodes: Structures of [Sb4Te4]4− and [Sb9Te6]3− Angewandte Chemie. ,vol. 32, pp. 1646- 1648 ,(1993) , 10.1002/ANIE.199316461
R. H. ARNTSON, F. W. DICKSON, G. TUNELL, Saturation Curves of Orthorhombic Sulfur in the System S-Na2S-H2O at 25° and 50°C Science. ,vol. 128, pp. 716- 718 ,(1958) , 10.1126/SCIENCE.128.3326.716-A
P. B�uttcher, U. Kretschmann, Darstellung und Kristallstruktur von Dicaesiumpentatellurid, Cs2Te5† Zeitschrift für anorganische und allgemeine Chemie. ,vol. 491, pp. 39- 46 ,(1982) , 10.1002/ZAAC.19824910106
R. H. Arntson, F. W. Dickson, G. Tunell, Systems S-Na 2 O-H 2 O and S-H 2 O--Application to the mode of origin of natural alkaline polysulfide and thiosulfate solutions American Journal of Science. ,vol. 258, pp. 574- 582 ,(1960) , 10.2475/AJS.258.8.574
A. Stein, S. W. Keller, T. E. Mallouk, Turning Down the Heat: Design and Mechanism in Solid-State Synthesis Science. ,vol. 259, pp. 1558- 1564 ,(1993) , 10.1126/SCIENCE.259.5101.1558
William S. Sheldrick, Michael Wachhold, Discrete Crown-Shaped Te8 Rings in Cs3 Te22 Angewandte Chemie International Edition in English. ,vol. 34, pp. 450- 451 ,(1995) , 10.1002/ANIE.199504501
P Böttcher, Synthesis and crystal structure of Rb2Te3 and Cs2Te3 Journal of The Less Common Metals. ,vol. 70, pp. 263- 271 ,(1980) , 10.1016/0022-5088(80)90235-0
Julie L. Shreeve-Keyer, Robert C. Haushalter, Electrochemical synthesis of a new SbTe polyanion : X-ray structure of [(C4H9)4N]3Sb(Te2)Te2 Polyhedron. ,vol. 15, pp. 1213- 1215 ,(1996) , 10.1016/0277-5387(95)00371-1
P. Böttcher, U. Kretschmann, Darstellung und kristallstruktur von dirubidiumpentatellurid, Rb2Te5 Journal of The Less Common Metals. ,vol. 95, pp. 81- 91 ,(1983) , 10.1016/0022-5088(83)90386-7