ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly

Mixed selenates in the systems [(CH3)4N]2SeO4-MSeO4-H2O  (M=Mg and Ni)

P. Vojtíšek, Z. Sieglová, and M. Ebert

Department of Inorganic Chemistry, Faculty of Natural Sciences, Charles University, CS-128 40 Prague


Abstract: The solubility diagrams in the [(CH3)4N]2SeO4-MSeO4-H2O  and [(CH3)4N]2SeO4-NiSeO4-H2O systems at 25-degrees-C were studied. Basing on the results obtained the compounds [(CH3)4N]2Mg3(SeO4)4 .21H2O, [(CH3)4N]2Mg2(SeO4)3.12H2O, and [(CH3)4N]2Ni(SeO4)2.9H2O, which were not described in the literature till now, were prepared. On the basis of the infrared and electronic spectra, thermal analysis, X-ray powder diffractometry, and the measurement of the magnetic susceptibility the bonding relations in these substances were studied. It was found that the octahedral [M(H2O)6]2+ and tetrahedral [(CH3)4N]+ cations and the selenate anions SeO42- are the fundamental structural units in these substances.

Full paper in Portable Document Format: 451a11.pdf


Chemical Papers 45 (1) 11–20 (1991)

Tuesday, April 16, 2024

SCImago Journal Rank 2021
European Symposium on Analytical Spectrometry ESAS 2022
© 2024 Chemical Papers