A Molecular Placeholder Strategy To Access a Family of Transition-Metal-Functionalized Vanadium Oxide Clusters
Kastner K, Margraf J, Clark T, Streb C (2014)
Publication Status: Published
Publication Type: Journal article
Publication year: 2014
Journal
Publisher: Wiley-VCH Verlag
Book Volume: 20
Pages Range: 12269-12273
Journal Issue: 38
Abstract
Systematic access to metal-functionalized polyoxometalates has thus far been limited to lacunary tungsten oxide and molybdenum oxide clusters. The first controlled, stepwise bottom-up assembly route to metal-functionalized molecular vanadium oxides is now presented. A di-vacant vanadate cluster with two metal binding sites, (DMA)(2)[V12O32Cl](3-) (DMA= dimethylammonium) is formed spontaneously in solution and characterized by single-crystal X-ray diffraction, ESI mass spectrometry, V-51 NMR spectroscopy, and elemental analyses. In the cluster, the metal binding sites are selectively blocked by hydrogen-bonded DMA placeholder cations. Reaction of the cluster with transition metals TM (Fe3+, Co2+, Cu2+, Zn2+) gives access to mono-functionalized vanadate clusters (DMA)[{TM(L)}V12O32Cl](n-) (L= ligand). Metal binding is accomplished by significant distortions of the vanadium oxide framework reminiscent of a pincer movement. Cluster stability under technologically relevant conditions in the solid-state and solution is demonstrated.
Authors with CRIS profile
Additional Organisation(s)
Involved external institutions
Germany (DE)How to cite
APA:
Kastner, K., Margraf, J., Clark, T., & Streb, C. (2014). A Molecular Placeholder Strategy To Access a Family of Transition-Metal-Functionalized Vanadium Oxide Clusters. Chemistry - A European Journal, 20(38), 12269-12273. https://doi.org/10.1002/chem.201403592
MLA:
Kastner, Katharina, et al. "A Molecular Placeholder Strategy To Access a Family of Transition-Metal-Functionalized Vanadium Oxide Clusters." Chemistry - A European Journal 20.38 (2014): 12269-12273.
BibTeX: Download