Structure determination from small crystals of two aluminophosphates CrAPO-14 and SAPO-43
| Autor: | Marjorie M. Harding, V. Kaučič, Benson M. Kariuki, Graham Cheetham, Pierre J. Rizkallah, Madeleine Helliwell |
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| Rok vydání: | 1993 |
| Předmět: |
chemistry.chemical_classification
Chemistry Inorganic chemistry chemistry.chemical_element General Medicine Crystal structure General Biochemistry Genetics and Molecular Biology Chromium Crystallography chemistry.chemical_compound Aluminium X-ray crystallography Aluminium phosphate Hydrate Inorganic compound Diffractometer |
| Zdroj: | Acta Crystallographica Section B Structural Science. 49:413-420 |
| ISSN: | 0108-7681 |
| DOI: | 10.1107/s0108768192009005 |
| Popis: | Small single crystals, ca 10 5 μm 3 , of two alumino-phosphates have been used to determine their structures. Both compounds were synthesized with the aim of incorporating chromium into the framework, and for CrAPO-14 the X-ray diffraction results show that this has been achieved. For CrAPO-14, Al 3.96 Cr 0.04 (PO 4 ) 4 (OH)-C 3 H 10 N-H 2 O, data recorded on a Rigaku AFC-SR diffractometer (Cu Kα) and, independently, on an Enraf-Nonius FAST diffractometer (Mo Kα), showed the structure to be like that of GaPO-14 [Parise (1986). Acta Cryst. C42, 670-673]; aluminium atoms occupy four-, five- and six-coordinated sites, and 45% of the aluminium in the six-coordinate site is replaced by chromium |
| Databáze: | OpenAIRE |
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