Schmid M, Kaftan A, Steinrück HP, Gottfried M (2012)
Publication Type: Journal article
Publication year: 2012
Original Authors: Schmid M., Kaftan A., Steinrück H.-P., Gottfried J.M.
Publisher: Elsevier
Book Volume: 606
Pages Range: 945-949
DOI: 10.1016/j.susc.2012.02.012
The electronic states of submonolayers and multilayers of cobalt(II) phthalocyanine (CoPc) adsorbed on Ag(111) were examined with photoelectron spectroscopy to obtain insight into the details of the substrate-adsorbate interaction. UV photoelectron spectroscopy (UPS) reveals the presence of two interaction-related valence states in the direct vicinity of the Fermi edge, in agreement with previous DFT calculations. X-ray photoelectron spectra indicate that the substrate-adsorbate interaction results in transfer of electron density from the substrate to the Co(II) ion. Substantial changes in the Co 2p multiplet structure, a spectral pattern induced by the open-shell character of the central Co(II) ion, indicate a complete quenching of the molecular spin. While pristine CoPc molecules are paramagnetic with S = 1/2, molecules in direct contact to the Ag(111) substrate appear to be in a diamagnetic state. © 2012 Elsevier B.V. All rights reserved.
APA:
Schmid, M., Kaftan, A., Steinrück, H.-P., & Gottfried, M. (2012). The electronic structure of cobalt(II) phthalocyanine adsorbed on Ag(111). Surface Science, 606, 945-949. https://dx.doi.org/10.1016/j.susc.2012.02.012
MLA:
Schmid, Martin, et al. "The electronic structure of cobalt(II) phthalocyanine adsorbed on Ag(111)." Surface Science 606 (2012): 945-949.
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