ChemInform Abstract: Synthesis and Crystal Structure of a Novel Germanate: (NH4)4 [(GeO2)3(GeO1.5F3)2] ×0.67H2O
| العنوان: | ChemInform Abstract: Synthesis and Crystal Structure of a Novel Germanate: (NH4)4 [(GeO2)3(GeO1.5F3)2] ×0.67H2O |
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| المؤلفون: | Xiaodong Zou, Mike S. Dadachov, Tony Conradsson |
| المصدر: | ChemInform. 31 |
| بيانات النشر: | Wiley, 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Germanium dioxide, Chemistry, chemistry.chemical_element, Nanotechnology, Germanium, General Medicine, Crystal structure, Crystal, chemistry.chemical_compound, Crystallography, Hydrofluoric acid, Orthorhombic crystal system, Germanate, Powder diffraction |
| الوصف: | The novel microporous germanate (NH4)4[(GeO2)3(GeO1.5F3)2]·0.67H2O was prepared from an aqueous solution containing germanium dioxide, pyridine, hydrofluoric acid, and 2,6-diaminopyridine as a template. The solution was kept at 165 °C in a Teflon-lined autoclave for 4 days. Large crystals were produced and studied by X-ray powder diffraction, FTIR, thermal analysis, and elemental analysis. The structure was determined by single-crystal X-ray diffraction. The crystal is orthorhombic, space group Pbcn, with a = 7.0065(4) A, b = 11.7976(6) A, c = 19.5200(14) A, and Z = 4. The structure is a layered framework built up from GeO4 tetrahedral and GeO3F3 octahedral units. The polyhedral units are connected in such a way that they form a zeolite-like porous structure with three- and nine-membered rings. Half of the ammonium ions are located inside the nine-membered rings. The other half are above and below the three-membered rings. The connectivity of the germanium polyhedral units is interrupted along the c axis ... |
| تدمد: | 1522-2667 0931-7597 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::9a783957a4cd6023cf43906fa5f1d683 https://doi.org/10.1002/chin.200027003 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........9a783957a4cd6023cf43906fa5f1d683 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15222667 09317597 |
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