Abstract
13C and31P solid state NMR measurements on the organic ligands in ligated Au55, Ni8, Pt309, Cu36 and Cu70 clusters are reported. The ligands behave like diamagnetic organic molecules, giving rise to relatively narrow lines with excellent cross-polarization efficiency. The resonance lines of the nuclei directly bound to the metal core are systematically broadened in the conducting compounds. No pronounced Knight shifts or evidence of metallic-like relaxation were observed. These results support a model for the electrical conduction involving tunneling between metal cores with the ligands playing the role of a tunneling barrier.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Van Staveren, M.P.J., Brom, H.B., de Jongh, L.J.: Phys. Rep.208, 1 (1991)
Van der Putten, D., Brom, H.B., de Jongh, L.J., Schmid, G.: Physics and Chemistry of finite systems: From Clusters to Crystals, volII, 1007 (1992), P. Jena et al. (eds.), Kluwer Academic Publ., Van der Putten, D., Brom, H.B., Witteveen, J., de Jongh, L.J., Schmid, G.: (this conference) Z. Phys. D.
Van der Klink, J.J.: Physics and Chemistry of finite systems: From Clusters to Crystals, volI, 537 (1992), P. Jena et al. (eds.), Kluwer Academic Publ.
De Groot, H.J.M., Copié, V., Smith, S.O., Allen, P.J., Winkel, C., Lugtenburg, J., Herzfeld, J., Griffin, R.G.: J. Magn. Reson.77, 252 (1988)
Herzfeld, J., Berger, A.: J. Chem. Phys.73, 6021 (1980)
Olivieri, A.: J. Am. Chem. Soc.114, 5758 (1992)
Schmid, G.: Structure and Bonding62, 51 (1985)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kolbert, A.C., de Groot, H.J.M., van der Putten, D. et al. Solid state magic angle spinning13C and31P NMR of organic ligand stabilized high nuclearity metal clusters. Z Phys D - Atoms, Molecules and Clusters 26 (Suppl 1), 24–26 (1993). https://doi.org/10.1007/BF01425606
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01425606