CO chemisorption on Nin, Pdn and Ptn clusters

Ganteför, Gerd; Schulze Icking-Konert, Georg; Handschuh, Haiko; Eberhardt, Wolfgang

CO chemisorption on Nin, Pdn and Ptn clusters

Dateien

IntJMassSpecIonProc1591996.pdfGröße: 2.38 MBDownloads: 466

Datum

1996

Autor:innen

Ganteför, Gerd

Schulze Icking-Konert, Georg

Handschuh, Haiko

Eberhardt, Wolfgang

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

International Journal of Mass Spectrometry and Ion Processes. 1996, 159(1-3), pp. 81-109. Available under: doi: 10.1016/S0168-1176(96)04444-8

Zusammenfassung

Vibrationally resolved photoelectron spectra of mass-selected negatively charged Nin− (n = 1 3), Pdn− (n = 2, 3) and Ptn− (n = 1 4) clusters are compared with the corresponding spectra of these clusters ligated with m CO molecules (m = 1 8). The spectra of the Ptn(CO)m−, species reveal part of the valence orbitals, which actually form the chemisorption bond. The data are in good agreement with the Blyholder model for CO chemisorption (σ-donation-π-backdonation scheme) and indicate that saturation corresponds to the formation of a closed electronic shell of the neutral. The strength of the π-backdonation is found to be larger for small particles compared with the corresponding single crystal surfaces, which may be related to the catalytic properties of small particles. The spectra of the unsaturated Nin(CO)m− show fundamental differences compared with the ones of Ptn(CO)m− clusters owing to the high degree of localization of the Ni 3d orbitals. The spectra of the Pdn(CO)m− species show a rather irregular behaviour.

Fachgebiet (DDC)

530 Physik

Schlagwörter

Carbon monoxide, Cluster, Chemisorption

Zitieren

ISO 690

GANTEFÖR, Gerd, Georg SCHULZE ICKING-KONERT, Haiko HANDSCHUH, Wolfgang EBERHARDT, 1996. CO chemisorption on Nin, Pdn and Ptn clusters. In: International Journal of Mass Spectrometry and Ion Processes. 1996, 159(1-3), pp. 81-109. Available under: doi: 10.1016/S0168-1176(96)04444-8

BibTex

@article{Gantefor1996chemi-9325,
  year={1996},
  doi={10.1016/S0168-1176(96)04444-8},
  title={CO chemisorption on Nin, Pdn and Ptn clusters},
  number={1-3},
  volume={159},
  journal={International Journal of Mass Spectrometry and Ion Processes},
  pages={81--109},
  author={Ganteför, Gerd and Schulze Icking-Konert, Georg and Handschuh, Haiko and Eberhardt, Wolfgang}
}

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Universitätsbibliographie

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