Validation of the inverted adsorption structure for free-base tetraphenyl porphyrin on Cu(111)

P. T. P. Ryan; P. L. Lalaguna; F. Haag; M. M. Braim; P. Ding; D. J. Payne; J. V. Barth; T.-L. Lee; D. P. Woodruff; F. Allegretti; D. A. Duncan

doi:10.1039/C9CC09638H

Validation of the inverted adsorption structure for free-base tetraphenyl porphyrin on Cu(111)†

P. T. P. Ryan,

^ab P. L. Lalaguna,^ac F. Haag,^d M. M. Braim,^e P. Ding,

^ef D. J. Payne,

^b J. V. Barth,^d T.-L. Lee,^a D. P. Woodruff,

^e F. Allegretti

^d and D. A. Duncan

*^a

Author affiliations

* Corresponding authors

^a Diamond Light Source, Harwell Science and Innovation Campus, Didcot, UK
E-mail: david.duncan@diamond.ac.uk

^b Department of Materials, Imperial College London, UK

^c School of Chemistry, University of Glasgow, UK

^d Physics Department E20, Technical University of Munich, James Franck Straße 1, D-85748 Garching, Germany

^e Department of Physics, University of Warwick, Coventry, UK

^f State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China

Abstract

Utilising normal incidence X-ray standing waves we rigourously scrutinise the “inverted model” as the adsorption structure of free-base tetraphenyl porphyrin on Cu(111). We demonstrate that the iminic N atoms are anchored at near-bridge adsorption sites on the surface displaced laterally by 1.1 ± 0.2 Å in excellent agreement with previously published calculations.

Chemical Communications

Validation of the inverted adsorption structure for free-base tetraphenyl porphyrin on Cu(111)†

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Validation of the inverted adsorption structure for free-base tetraphenyl porphyrin on Cu(111)

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