Influence of ligands on the electronic and magnetic properties of Fe porphyrin in gas phase and on Cu(001)
A study of the adsorption of different axial ligands on Fe porphyrin (FeP), both isolated and adsorbed on Cu(001), was performed by means of Density Functional Theory. The electronic and magnetic properties of the adsorbed FeP resulted to be strongly influenced by the axial ligands considered, Cl and O. Cl induces an enhancement of the overall molecular magnetic moment of 3.0 μ{sub B} while O or O{sub 2} leave the spin state of the molecule unchanged. The influence of the Cl in the electronic states was moreover studied by means of theoretical NEXAFS N K-edge, where the spectra of isolated FeP and FeP with Cl ligand were calculated. The adsorption of the FeP molecules on Cu(001) leads in case of Cl to a further increase of the magnetic moment due to strong deformation of the Fe-N bond.
- OSTI ID:
- 22409952
- Journal Information:
- Journal of Applied Physics, Vol. 117, Issue 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTRA
ABSORPTION SPECTROSCOPY
ADSORPTION
COPPER
CRYSTAL STRUCTURE
DEFORMATION
DENSITY FUNCTIONAL METHOD
FINE STRUCTURE
IRON COMPOUNDS
LIGANDS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MOLECULES
PORPHYRINS
SPIN
X-RAY SPECTROSCOPY