Издательство СО РАН

Издательство СО РАН

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Поиск по журналу

Журнал структурной химии

2011 год, номер 5

VAPOUR PHASE DIFFUSION OF AMMONIA ON THE FIRST ROW TRANSITION METAL SERIES AND ITS EFFECT ON THE CRYSTALLIZATION PROCESS: A STRUCTURAL INVESTIGATION

T.N. Ramesh
Department of Chemistry, Central College Campus, Bangalore University
adityaramesh77@yahoo.com
Ключевые слова: diffusion, layered compounds, structure determination
Страницы: 939-945

Аннотация

The diffusion of ammonia vapors to the magnesium/manganese/nickel nitrate solution results in the formation of their respective metal hydroxides, while the diffusion of ammonia vapors to copper and zinc nitrate solutions results in the crystallization of layered hydroxysalts. The PXRD patterns show that highly crystalline phases of samples are obtained. Infrared spectra were used to get information on the local coordination of ions. The thermogravimetric analysis justifies the phases concluded from powder X-ray diffraction and infrared spectroscopy. This clearly demonstrates that the crystal structure is mainly dictated by the nature of the metal ion, its site selectivity and specificity under identical synthesis conditions.