The fluoride route to Lindqvist clusters: Synthesis and crystal structure of layered hexatantalate Na8Ta6O19 center dot 26H(2)O.

Britvin, Sergey, Siidra, Oleg I., Lotnyk, Andriy, Kienle, Lorenz, Krivovichev, Sergey V. and Depmeier, Wulf (2012) The fluoride route to Lindqvist clusters: Synthesis and crystal structure of layered hexatantalate Na8Ta6O19 center dot 26H(2)O. Inorganic Chemistry Communications, 25 . pp. 18-20. DOI 10.1016/j.inoche.2012.08.025.

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Abstract

Alkali-induced hydrolysis of fluoro-complexes of Ta and Nb affords one-pot synthesis of well crystallized compounds containing Lindqvist hexatantalate [Ta6O19]8 − and hexaniobate [Nb6O19]8 − ions. As an example, Na8Ta6O19·26H2O, a polyoxometalate with a remarkably complex layered structure was synthesized using the new method. An advantage of the proposed synthetic approach is that it can be easily embedded into existing technological flowcharts for the processing of Nb and Ta allowing direct synthesis of polyoxometalates from inexpensive fluoride precursors.

Document Type: Article
Keywords: Polyoxometalate, Lindqvist ion, Hexatantalate, Hexaniobate, Fluoride
Research affiliation: Kiel University
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1016/j.inoche.2012.08.025
ISSN: 1387-7003
Projects: Future Ocean
Date Deposited: 14 May 2014 10:20
Last Modified: 23 Sep 2019 21:51
URI: http://oceanrep.geomar.de/id/eprint/23873

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