Features of metal atom 2p excitations and electronic structure of 3d-metal phthalocyanines studied by X-ray absorption and resonant photoemission
Author
Summary, in English
The metal atom 2p core excitations in 3d-metal phthalocyanines (MPc's, M = Ni, Co, Fe) have been studied via a combination of near edge X-ray absorption fine structure (NEXAFS) and resonant photoemission (ResPE) spectroscopy. On the basis of comparison of the corresponding spectra of NiPc, CoPc and FePc it has been shown that the presence of a partly filled molecular orbital (MO) dramatically affects the formation and decay processes of the M 2p core excitation in CoPc and, to a greater extend, in FePc due to the significant 3d-3d exchange interaction. It has been found that the low-lying unoccupied electronic states of NiPc, CoPc and FePc are strongly localized within the MN4 quasi-molecule and have nearly pure 3d character. Moreover, mainly 3d metallic character of the high-lying occupied MOs of NiPc, CoPc and FePc has been proved. (C) 2012 Elsevier B. V. All rights reserved.
Department/s
Publishing year
2013
Language
English
Pages
132-135
Publication/Series
Applied Surface Science
Volume
267
Document type
Journal article
Publisher
Elsevier
Topic
- Natural Sciences
- Physical Sciences
Keywords
- Phthalocyanine
- NEXAFS
- Resonant photoemission
- Exchange interaction
Status
Published
ISBN/ISSN/Other
- ISSN: 1873-5584