Solution species and crystal structure of Zr(IV) acetate
Solution species and crystal structure of Zr(IV) acetate
Hennig, C.; Weiss, S.; Kraus, W.; Kretzschmar, J.; Scheinost, A.
Abstract
The complex formation and the coordination of zirconium with acetic acid were investigated with Zr K-edge EXAFS spectroscopy and single crystal diffraction. Zr K edge EXAFS spectra show that a stepwise increase of acetic acid in aqueous solution with 0.1 M Zr(IV) leads to a structural rearrangement from initial tetranuclear hydrolysis species [Zr4(OH)8(OH2)16]8+ to a hexanuclear acetate species Zr6(O)4(OH)4(CH3COO)12. The solution species Zr6(O)4(OH)4(CH3COO)12 was preserved in crystals by slow evaporation of the aqueous solution. Single crystal diffraction reveals an uncharged hexanuclear cluster in solid Zr6(µ3-O)4(µ3-OH)4(CH3COO)12·8.5H2O. EXAFS measurements show that the structure of the hexanuclear zirconium acetate cluster in solution and solid state are identical.
Keywords: zirconium acetate; EXAFS; SC-XRD; NMR
Beteiligte Forschungsanlagen
- Rossendorf Beamline an der ESRF DOI: 10.1107/S1600577520014265
Verknüpfte Publikationen
- DOI: 10.1107/S1600577520014265 is cited by this (Id 23922) publication
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Inorganic Chemistry 56(2017), 2473-2480
DOI: 10.1021/acs.inorgchem.6b01624
Cited 62 times in Scopus
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