Structural characterisation of the giant organometallic platinum cluster Pt-309(phen*)(36)O-30 using EXAFS

Authors
Benfield, RE Filipponi, A Morgante, N Schmid, G
Citation
Re. Benfield et al., Structural characterisation of the giant organometallic platinum cluster Pt-309(phen*)(36)O-30 using EXAFS, J ORGMET CH, 573(1-2), 1999, pp. 299-304
Citations number
40
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN journal
0022328X → ACNP
Volume
573
Issue
1-2
Year of publication
1999
Pages
299 - 304
Database
ISI
SICI code
0022-328X(19990131)573:1-2<299:SCOTGO>2.0.ZU;2-Z
Abstract
The structure of the high-nuclearity organometallic platinum cluster materi al Pt-309(phen*)(36)O-30 has been investigated by X-ray absorption spectros copy. Analysis of Pt L-3-edge EXAFS data, using platinum foil as a referenc e, shows that the platinum clusters have cubic close packed geometry. A sli ght 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 oxid ation state, very close to that in metallic platinum. (C) 1999 Elsevier Sci ence S.A. All rights reserved.