Coverage- and temperature-induced self-metalation of tetraphenyltransdibenzoporphyrin on Cu(111)

Shaker M, Muth M, Steffen J, Ceccatto Dos Santos A, Jaekel S, Adhikari R, Gazetas P, Oleszak C, de Siervo A, Jux N, Görling A, Lytken O, Steinrück HP (2024)

Publication Language: English

Publication Type: Journal article

Publication year: 2024

Journal

Book Volume: 37

Journal Issue: 8

DOI: 10.1088/1361-648X/ad92d2

Abstract

We have investigated the adsorption and self-metalation of free-base tetraphenyltransdibenzoporphyrin (2H-TPtdBP) on Cu(111) as a function of coverage and temperature using scanning tunneling microscopy, x-ray photoelectron spectroscopy, temperature programmed desorption, and density-functional theory calculations. At low coverages (<0.16 molecules nm-2), we observe isolated individual molecules with an inverted conformation and no self-metalation up to 363 K. At higher coverages, both the formation of ordered islands and self-metalation are observed over time already at room temperature, and accelerate upon heating to 363 K. At 423 K, complete self-metalation occurs for all coverages up to the completed first layer. By comparing our results for 2H-TPtdBP to the existing literature on other tetraphenyl-based porphyrins, we demonstrate how adsorption and self-metalation can be tailored by the choice of substituents.

Authors with CRIS profile

Involved external institutions

Universidade Estadual de Campinas (UNICAMP) / University of Campinas Brazil (BR)

How to cite

APA:

Shaker, M., Muth, M., Steffen, J., Ceccatto Dos Santos, A., Jaekel, S., Adhikari, R.,... Steinrück, H.-P. (2025). Coverage- and temperature-induced self-metalation of tetraphenyltransdibenzoporphyrin on Cu(111). Journal of Physics: Condensed Matter, 37(8). https://doi.org/10.1088/1361-648X/ad92d2

MLA:

Shaker, Majid, et al. "Coverage- and temperature-induced self-metalation of tetraphenyltransdibenzoporphyrin on Cu(111)." Journal of Physics: Condensed Matter 37.8 (2025).

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