Compounds of general formula (Mg 2؊x Ni x )(OH)(AsO 4 ) (x0؍ and 0.45) have been synthesized and characterized. The crystal structures of these compounds have been refined using X-ray powder diffraction data. The structure of the compounds contains two kinds of oxygen polyhedra coordinating to the
Spectroscopic and magnetic study of the (Mg,M)3(ASO4)2·8H2O (M = NI2+, CO2+) arsenates
✍ Scribed by J.M. Rojo; J.L. Mesa; J.L. Pizarro; L. Lezama; M.I. Arriortua; T. Rojo
- Book ID
- 114066659
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 674 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0025-5408
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Cationic replacements in the arsenates NaCa 2 M 2 > > 2 (AsO 4 ) 3 (M 2 > > ؍ Mg, Ni, Co) have a strong influence on their garnetalluaudite polymorphism. The preferential formation of an alluaudite phase (at the expense of the garnet phase) is induced by the following cationic modifications: (i) T
Inhaltsu È bersicht. Die Verbindungen Mg(IO 3 ) 2 ´4 H 2 O, b-Ni(IO 3 ) 2 ´4 H 2 O, Co(IO 3 ) 2 ´4 H 2 O und entsprechend deuterierte Pra È parate wurden mittels ro È ntgenographischer, IRund Raman-spektroskopischer Methoden untersucht. Die Kristallstruktur von Co(IO 3 ) 2 ´4 H 2 O (Gitterkonstanten