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Features of metal atom 2p excitations and electronic structure of 3d-metal phthalocyanines studied by X-ray absorption and resonant photoemission

Simonov, K. A. ; Vinogradov, A. S. ; Brzhezinskaya, M. M. ; Preobrajenski, Alexei LU ; Generalov, A. V. and Klyushin, A. Yu (2013) In Applied Surface Science 267. p.132-135
Abstract
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,... (More)
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. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Phthalocyanine, NEXAFS, Resonant photoemission, Exchange interaction
in
Applied Surface Science
volume
267
pages
132 - 135
publisher
Elsevier
external identifiers
  • wos:000314881900032
  • scopus:84873736728
ISSN
1873-5584
DOI
10.1016/j.apsusc.2012.08.095
language
English
LU publication?
yes
id
8e06b1f6-04c4-40a6-9157-7243084b0341 (old id 3671694)
date added to LUP
2016-04-01 09:59:41
date last changed
2022-04-12 00:58:13
@article{8e06b1f6-04c4-40a6-9157-7243084b0341,
  abstract     = {{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.}},
  author       = {{Simonov, K. A. and Vinogradov, A. S. and Brzhezinskaya, M. M. and Preobrajenski, Alexei and Generalov, A. V. and Klyushin, A. Yu}},
  issn         = {{1873-5584}},
  keywords     = {{Phthalocyanine; NEXAFS; Resonant photoemission; Exchange interaction}},
  language     = {{eng}},
  pages        = {{132--135}},
  publisher    = {{Elsevier}},
  series       = {{Applied Surface Science}},
  title        = {{Features of metal atom 2p excitations and electronic structure of 3d-metal phthalocyanines studied by X-ray absorption and resonant photoemission}},
  url          = {{http://dx.doi.org/10.1016/j.apsusc.2012.08.095}},
  doi          = {{10.1016/j.apsusc.2012.08.095}},
  volume       = {{267}},
  year         = {{2013}},
}