Abstract
The three novel, discrete palladium(II)-oxo clusters [CaPd12O8(PhAsO3)8]6- (CaPd12), [SrPd12O6(OH)3-(PhAsO3)6(OAc)3]4- (SrPd12), and [BaPd15O10(PhAsO3)10]8- (BaPd15) encapsulating alkaline earth metal ions were prepared and fully characterized by a multitude of solution and solid-state physicochemical techniques. We have discovered a structure-directing template effect induced by the respective size of the alkaline earth guest ion, which determines the detailed condensation arrangement of the peripheral PdII-oxo shell. The unprecedented SrPd12 with an open-shell type structure is of particular importance and reflects a successful strategy for deliberate design of new structural classes of polyoxo-noble-metalates. Furthermore, the unusual acetate-water ligand exchange phenomenon renders SrPd12 as a promising candidate for noble-metal-based catalysis.
Original language | English |
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Pages (from-to) | 11974-11978 |
Number of pages | 5 |
Journal | Angewandte Chemie - International Edition |
Volume | 53 |
Issue number | 44 |
DOIs | |
Publication status | Published - 12 Sept 2014 |
Externally published | Yes |
Keywords
- Cluster compounds
- Palladium
- Polyoxometalates
- Template effect
- X-ray diffraction