Zhang L, Lepper M, Stark MW, Lungerich D, Jux N, Hieringer W, Steinrück HP, Marbach H (2015)
Publication Status: Published
Publication Type: Journal article
Publication year: 2015
Publisher: Royal Society of Chemistry
Book Volume: 17
Pages Range: 13066-13073
Journal Issue: 19
DOI: 10.1039/c5cp01490e
A systematic scanning tunnelling microscopy investigation of the self-assembly and of thermally induced conformational changes of Ni(II)-meso-tetrakis (4-tert-butylphenyl) benzoporphyrin (Ni-TTBPBP) on Cu(111) is presented. At room temperature, Ni-TTBPBPs diffuse on the surface and self-assemble into ordered islands with well-defined registry to the substrate, with two different azimuthal orientations. The formation of the characteristic supramolecular structure is attributed to van der Waals interactions between the tert-butyl groups. Upon moderate heating, the intramolecular conformation changes irreversibly due to a dehydrogenative intramolecular aryl-aryl coupling reaction. This reaction is coverage dependent, with a lower rate at higher initial coverage; this behaviour is attributed to a stabilization of Ni-TTBPBP in the ordered islands at higher coverage.
APA:
Zhang, L., Lepper, M., Stark, M.W., Lungerich, D., Jux, N., Hieringer, W.,... Marbach, H. (2015). Self-assembly and coverage dependent thermally induced conformational changes of Ni(II)-meso-tetrakis (4-tert-butylphenyl) benzoporphyrin on Cu(111). Physical Chemistry Chemical Physics, 17(19), 13066-13073. https://dx.doi.org/10.1039/c5cp01490e
MLA:
Zhang, Liang, et al. "Self-assembly and coverage dependent thermally induced conformational changes of Ni(II)-meso-tetrakis (4-tert-butylphenyl) benzoporphyrin on Cu(111)." Physical Chemistry Chemical Physics 17.19 (2015): 13066-13073.
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