Brox J, Adhikari R, Shaker M, Ruppel M, Jux N, Marbach H, Jaekel S, Steinrück HP (2022)
Publication Type: Journal article
Publication year: 2022
Book Volume: 720
Article Number: 122047
DOI: 10.1016/j.susc.2022.122047
We address the adsorption of 2H-tetranaphthylporphyrin (2HTNP) and 2H-tetranaphthylbenzoporphyrin (2HTNBP) on Cu(111) and Ag(111). The difference between the two molecules is that for 2HTNBP the pyrrole groups are replaced by isoindole groups. We were interested in the resulting differences in the adsorption behavior on the two surfaces, in particular the role of the naphthyl groups. The investigations are performed with scanning tunneling microscopy at room temperature (RT) and after heating treatments (500 and 600 K). On Ag(111), 2HTNP forms a commensurable superstructure at RT, which transforms to a denser packed, non-commensurable structure upon annealing. For 2HTNBP, individual molecules are observed on Cu(111) at RT, which exhibit different mobility. In contrast, on Ag(111) the formation of ordered 2HTNBP islands occurs, which are stabilized by T-type interactions. After heating to 500 K, these islands undergo a structural change to a denser packed structure, which is stabilized by π-π stacking of neighboring naphthyl groups.
APA:
Brox, J., Adhikari, R., Shaker, M., Ruppel, M., Jux, N., Marbach, H.,... Steinrück, H.-P. (2022). On the adsorption of different tetranaphthylporphyrins on Cu(111) and Ag(111). Surface Science, 720. https://dx.doi.org/10.1016/j.susc.2022.122047
MLA:
Brox, Jan, et al. "On the adsorption of different tetranaphthylporphyrins on Cu(111) and Ag(111)." Surface Science 720 (2022).
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