Conformational Control of Chemical Reactivity for Surface‐Confined Ru‐Porphyrins

Knecht, Peter; Reichert, Joachim; Deimel, Peter S.; Feulner, Peter; Haag, Felix; Allegretti, Francesco; Garnica, Manuela; Schwarz, Martin; Auwärter, Willi; Ryan, Paul T. P.; Lee, Tien‐Lin; Duncan, David A.; Seitsonen, Ari Paavo; Barth, Johannes V.; Papageorgiou, Anthoula C.

Abstract

We assess the crucial role of tetrapyrrole flexibility in the CO ligation to distinct Ru-porphyrins supported on an atomistically well-defined Ag(111) substrate. Our systematic real-space visualisation and manipulation experiments with scanning tunnelling microscopy directly probe the ligation, while bond-resolving atomic force microscopy and X-ray standing-wave measurements characterise the geometry, X-ray and ultraviolet photoelectron spectroscopy the electronic structure, and temperature-programmed desorption the binding strength. Density-functional-theory calculations provide additional insight into the functional interface. We unambiguously demonstrate that the substituents regulate the interfacial conformational adaptability, either promoting or obstructing the uptake of axial CO adducts.

Citation

Knecht, P., Reichert, J., Deimel, P. S., Feulner, P., Haag, F., Allegretti, F., Garnica, M., Schwarz, M., Auwärter, W., Ryan, P. T. P., Lee, T., Duncan, D. A., Seitsonen, A. P., Barth, J. V., & Papageorgiou, A. C. (2021). Conformational Control of Chemical Reactivity for Surface‐Confined Ru‐Porphyrins. Angewandte Chemie International Edition, 60(30), 16561-16567. https://doi.org/10.1002/anie.202104075

• Journal Article Type: Article
• Acceptance Date: May 3, 2021
• Online Publication Date: Jun 22, 2021
• Publication Date: Jul 19, 2021
• Deposit Date: Feb 19, 2025
• Publicly Available Date: Feb 20, 2025
• Journal: Angewandte Chemie International Edition
• Print ISSN: 1433-7851
• Electronic ISSN: 1521-3773
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 60
• Issue: 30
• Pages: 16561-16567
• DOI: https://doi.org/10.1002/anie.202104075
• Public URL: https://nottingham-repository.worktribe.com/output/41932742
• Publisher URL: https://onlinelibrary.wiley.com/doi/10.1002/anie.202104075