On the mutual solubility in MMoO4-LnVO(4) systems, where M = Ca, Cd, Sr, Ba, Pb, Ln = Y, Sc, Ce-Lu / Zhuravlev V. D.,Reznitskikh O. G.,Bamburov V. G. // JOURNAL OF STRUCTURAL CHEMISTRY. - 2015. - V. 56, l. 1. - P. 77-84.

ISSN/EISSN:

0022-4766 / 1573-8779

Type:

Article

Abstract:

The factors determining the solubility in MMoO4(scheelite)-LnVO(4)(zircon) systems, where M = Ca, Cd, Sr, Ba, Pb, Ln = Y, Sc, La-Lu, are analyzed. It is shown that primary solid solutions based on REE vanadates are absent due to a high (above 36 kJ/mol) enthalpy of polymorphic scheelite -> zircon transition. For solid solutions based on bivalent metal molybdates, the zircon -> scheelite transition has a lower enthalpy of 16-22.3 kJ/mol. The differences in bond ionicity in MoO (4) (2-) and VO (4) (3-) anions and interatomic distances in MO8 and LnO(8) polyhedra restrict mutual solubility of the initial compounds, but are not the cause of its asymmetry.

Author keywords:

heterovalent mutual substitutions; solid solutions; mixing enthalpy; zircon; scheelite SCHEELITE-TYPE MOLYBDATES; MISCIBILITY; TUNGSTATES; OXIDES

DOI:

10.1134/S0022476615010114

Web of Science ID:

ISI:000351691800011

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JAN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1573-8779
Keywords-Plus	SCHEELITE-TYPE MOLYBDATES; MISCIBILITY; TUNGSTATES; OXIDES
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Inorganic \& Nuclear; Chemistry, Physical
Author-Email	zhvd@ihim.uran.ru
ResearcherID-Numbers	Bamburov, Vitaliy/J-3241-2017
ORCID-Numbers	Reznitskikh, Olga/0000-0002-8036-890X
Funding-Acknowledgement	Division of Chemistry and Materials Science of the Russian Academy of Sciences {[}12-T-3-1003]
Funding-Text	The study was supported by the basic research program of the Division of Chemistry and Materials Science of the Russian Academy of Sciences (project 12-T-3-1003).
Number-of-Cited-References	20
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	10
Journal-ISO	J. Struct. Chem.
Doc-Delivery-Number	CE2ZI