| | 1 | Author
| Joachim Fuchs, Axel Thiele, Rosemarie Palm | Requires cookie* | | | Title
| Strukturen und Schwingungsspektren des Tetramethylammonium -a -dodekawolframatosilikats und des Tetrabutylammonium-/?-dodekawolframatosilikats Structures and Vibrational Spectra of Tetramethylammonium a-Dodecatungstosilicate and Tetrabutylammonium /?-Dodecatungstosilicate  | | | | Abstract
| Dodecatungstosilicates free of crystal water were prepared for the first time by using tetraalkylammonium as cation. The crystal structure of the tetramethylammonium a-dodeeatungstosilicate [N(CH3)4]4SiWi2C>4o (1) and tetrabutylammonium)S-dodecatungs-tosilicate, [N(C4H9)4]4SiWi204o (2) were solved by X-ray diffraction. (1) crystallizes tetragonal in the space group 14 with lattice parameters a = 14.642 A; c= 12.706 A; (2) orthorhombic, space group P2i2x2i with a = 29.277 A, b = 22.181 A and c = 15.381 A. The differences between the two isomeric heteropolyanions are discussed, especially the distances and angles between the tungsten atoms. Comparison of characteristic differences in the vibrational spectra permits the identifica-tion of the isomeric anions. | | | |
Reference
| Z. Naturforsch. 36b, 161—171 (1981); eingegangen am 22. Oktober 1980 | | | |
Published
| 1981 | | | |
Keywords
| Dodecatungstosilicates, Isomers, X-ray, Vibrational Spectra | | | |
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| default:Reihe_B/36/ZNB-1981-36b-0161.pdf | | | | Identifier
| ZNB-1981-36b-0161 | | | | Volume
| 36 | |
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