The structure of the high-nuclearity organometallic platinum cluster material Pt309(phen*)36O30 has been investigated by X-ray absorption spectroscopy. Analysis of Pt L3-edge EXAFS data, using platinum foil as a reference, shows that the platinum clusters have cubic close packed geometry. A slight contraction of the Pt–Pt bond length from the bulk was observed. XANES analysis shows that the platinum atoms in the clusters have a low mean oxidation state, very close to that in metallic platinum.
Structural characterisation of the giant organometallic platinum cluster Pt-309(phen*)(36)O-30 using EXAFS
FILIPPONI, Adriano;
1999-01-01
Abstract
The structure of the high-nuclearity organometallic platinum cluster material Pt309(phen*)36O30 has been investigated by X-ray absorption spectroscopy. Analysis of Pt L3-edge EXAFS data, using platinum foil as a reference, shows that the platinum clusters have cubic close packed geometry. A slight contraction of the Pt–Pt bond length from the bulk was observed. XANES analysis shows that the platinum atoms in the clusters have a low mean oxidation state, very close to that in metallic platinum.File in questo prodotto:
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