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Ordnung muss sein: heteroelement order and disorder in polyoxovanadates

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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 occupy distinct positions that might have been formed via partial substitution reactions in the {V15Sb6} precursor.

Graphical abstract: Ordnung muss sein: heteroelement order and disorder in polyoxovanadates

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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, Advance Article
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    Ordnung muss sein: heteroelement order and disorder in polyoxovanadates

    M. Wendt, L. K. Mahnke, C. Näther, J. van Leusen, P. Kögerler and W. Bensch, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT00715B

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