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Ordnung muss sein: heteroelement order and disorder in polyoxovanadates

Abstract

The first mixed antimonato-germanato polyoxovanadates were synthesized using two different strategies, highlighting the critical role of the precursors. Following the traditional route using multiple single sources as precursors the polyanions [V15Sb2Ge4O42(OH)4(H2O)]6– (1) and [V15Sb3Ge3O42(OH)3(H2O)]6– (2) are obtained, which display disorder of their Sb/Ge positions, indicating that clusters of different compositions are in equilibrium in solution. In contrast, if the water-soluble single-source precursor {Ni(en)3}3[V15Sb6O42(H2O)]·ca.15H2O is reacted with GeO2, {Ni(en)3}3[V15Sb3Ge3O42(OH)3(H2O)]≈9H2O (3) forms, in which Sb and Ge occupying distinct positions that might formed via partial substitution reactions in the {V15Sb6} precursor.

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Publication details

The article was received on 22 Feb 2018, accepted on 09 Apr 2018 and first published on 09 Apr 2018


Article type: Communication
DOI: 10.1039/C8DT00715B
Citation: Dalton Trans., 2018, Accepted Manuscript
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    Ordnung muss sein: heteroelement order and disorder in polyoxovanadates

    W. Bensch, M. Wendt, L. Mahnke, C. Nather, J. van Leusen and P. Kögerler, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C8DT00715B

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