Valence band photoelectron spectra of transition-metal cyanides |
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Authors: | R. Prins P. Biloen |
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Affiliation: | Koninklijke/Shell-Laboratorium, Amsterdam. The Netherlands |
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Abstract: | X-ray photoelectron spectra of the valence bands of NaCN, Li4Fe(CN)6, Li3Fe(CN)6, Ni(CN)2, Li2Pt(CN)4 and LiSCN have been measured and interpreted. Normalization of the valence-band intensities by equalization of the nitrogen is intensities made it possible to distinguish between cyanide and transition-metal bands. The spectrum of CN− is similar to that of the iso-electronic molecules N2 and CO. The transition-metal bands occur at a lower binding energy than the CN− bands and do not show structure. From the intensities we conclude that much less mixing of the metal and ligand orbitals takes place than indicated by recent MO calculations. |
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