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Issue 23, 2012
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A C2-symmetric antimonato polyoxovanadate cluster [V16Sb4O42(H2O)]8− derived from the {V18O42} archetype

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Abstract

The new antimonato polyoxovanadate [VIV16SbIII4O42(H2O)]8− cluster (1a) is the main structural motif of the solvothermally obtained compound {(trenH2)Zn(tren)}2[V16Sb4O42(H2O)]·xH2O (x = 6–10) (1) (tren = tris(2-aminoethyl)amine). The C2-symmetric cluster structure is closely related to the {V18O42} archetype. 1 crystallizes in the monoclinic space group C2/c with a = 30.7070(19) Å, b = 13.9512(5) Å, c = 23.1435(14) Å, β = 128.076(6)°, and V = 7804.8(7) Å3. The orientation of the [SbIII2O5]4− groups in each cluster leads to intermolecular Sb⋯O contacts and the formation of channels between the clusters. [Zn(tren)(trenH2)] complexes with trigonal bipyramidal coordination environments are located between the [V16Sb4O42(H2O)]8− anions, and form a three dimensional network with them via strong N–H⋯O hydrogen bonds. Up to 250 °C crystal water molecules are emitted, which are reversibly incorporated in humid air.

Graphical abstract: A C2-symmetric antimonato polyoxovanadate cluster [V16Sb4O42(H2O)]8− derived from the {V18O42} archetype

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Publication details

The article was received on 13 Feb 2012, accepted on 21 Mar 2012 and first published on 21 Mar 2012


Article type: Paper
DOI: 10.1039/C2DT30319A
Citation: Dalton Trans., 2012,41, 6957-6962
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    A C2-symmetric antimonato polyoxovanadate cluster [V16Sb4O42(H2O)]8− derived from the {V18O42} archetype

    E. Antonova, C. Näther, P. Kögerler and W. Bensch, Dalton Trans., 2012, 41, 6957
    DOI: 10.1039/C2DT30319A

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