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X-ray powder diffraction and IR study of NaMg(H2O)(2)[BP2O8]center dot H2O and NH4Mg(H2O)(2)[BP2O8]center dot H2O
Date
2000-09-01
Author
Baykal, Altan
Kizilyalli, M
Kniep, R
Metadata
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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NaMg(H2O)(2)[BP2O8]. H2O was prepared by hydrothermal synthesis and was characterized by X-ray powder difraction and IR method. The title compound was synthesized from MgCl2. 6H(2)O, NaBO3. 4H(2)O, and (NH4)(2)HPO4 with variable molar ratios using hydrothermal method by heating at 165 degrees C for 3 days. The X-ray powder diffraction data was indexed in hexagonal system, the unit cell parameters were found to be as a = 9.428, c = 15.82 Angstrom, Z = 4 and the space group is P6(1)22. It is isostructural with (MMII)-M-I(H2O)[BP2O8] type compounds where M-I = Na, K; M-II = Mg, Mn, Fe, Co, Ni and Zn. In addition NH4Mg(H2O)(2)[BP2O8]. H2O was also synthesized the first time in this research. Its unit cell parameters and hkl values were in good agreement with the sodium magnesium compound. The unit cell parameters are a = 9.529, c = 15.736 Angstrom. The indexed X-ray powder diffraction data of both compounds which were not reported in the literature is presented in this work. The IR data of NaMg(H2O)(2)[BP2O8]. H2O is also reported. (C) 2000 Kluwer Academic Publishers.
Subject Keywords
Crystal-structure
,
Spectra
,
Chemistry
,
NA-5<b2p3o13>
,
Borophosphate
,
Borate-phosphate
,
Vibrational spectroscopy
URI
https://hdl.handle.net/11511/43502
Journal
JOURNAL OF MATERIALS SCIENCE
DOI
https://doi.org/10.1023/a:1004818132238
Collections
Department of Physics, Article