Adsorption Structure of Cobalt Tetraphenylporphyrin on Ag(100)

Journal article


Publication Details

Author(s): Wechsler D, Franke M, Tariq Q, Zhang L, Lee TL, Thakur PK, Tsud N, Bercha S, Prince KC, Steinrück HP, Lytken O
Journal: Journal of Physical Chemistry C
Publisher: AMER CHEMICAL SOC
Publication year: 2017
Volume: 121
Journal issue: 10
Pages range: 5667-5674
ISSN: 1932-7447


Abstract


Using a combination of LEED, high-resolution XPS, XSW, and NEXAFS, we have studied the adsorption of cobalt(II) 5,10,15,20-tetraphenylporphyrin (CoTPP) on Ag(100) at 300 K. In agreement with previous studies on Ag(111), we find a charge transfer from the silver surface to the porphyrin molecule, reducing the metal center. At high coverages we observe a square-shaped 1.41 X 1.41 nm(2) adsorption structure, which becomes more open at lower coverages. Because of the superior energy resolution of the Diamond i09 beamline, we are able to resolve a low binding-energy shoulder in the C 1s spectrum, originating from the lower carbon atoms in the rotated phenyl rings. This is confirmed by XSW measurements, which also gives the adsorption heights of the other atoms in the molecule. In addition, the XSW and complementary NEXAFS measurements yield information about the rotation of the phenyl rings and the deformation of the macrocycle.



FAU Authors / FAU Editors

Franke, Matthias
Lehrstuhl für Physikalische Chemie II
Lytken, Ole
Lehrstuhl für Physikalische Chemie II
Steinrück, Hans-Peter Prof. Dr.
Lehrstuhl für Physikalische Chemie II
Tariq, Quratulain
Lehrstuhl für Physikalische Chemie II
Wechsler, Daniel
Lehrstuhl für Physikalische Chemie II
Zhang, Liang Dr.
Lehrstuhl für Physikalische Chemie II


External institutions
Diamond Light Source
Elettra Sincrotrone Trieste S.C.p.A.
Univerzita Karlova v Praze / Charles University in Prague


How to cite

APA:
Wechsler, D., Franke, M., Tariq, Q., Zhang, L., Lee, T.-L., Thakur, P.K.,... Lytken, O. (2017). Adsorption Structure of Cobalt Tetraphenylporphyrin on Ag(100). Journal of Physical Chemistry C, 121(10), 5667-5674. https://dx.doi.org/10.1021/acs.jpcc.7b00518

MLA:
Wechsler, Daniel, et al. "Adsorption Structure of Cobalt Tetraphenylporphyrin on Ag(100)." Journal of Physical Chemistry C 121.10 (2017): 5667-5674.

BibTeX: 

Last updated on 2018-10-08 at 19:54