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Chem Commun (Camb). 2014 Sep 14;50(71):10225-8. doi: 10.1039/c4cc03708a.

Massive conformational changes during thermally induced self-metalation of 2H-tetrakis-(3,5-di-tert-butyl)-phenylporphyrin on Cu(111).

Chemical communications (Cambridge, England)

M Stark, S Ditze, M Lepper, L Zhang, H Schlott, F Buchner, M Röckert, M Chen, O Lytken, H-P Steinrück, H Marbach

Affiliations

  1. Lehrstuhl für Physikalische Chemie II, Egerlandstrasse 3 and Interdisciplinary Center for Molecular Materials (ICMM), Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany. [email protected].

PMID: 25052700 DOI: 10.1039/c4cc03708a

Abstract

Based on a combined scanning tunnelling microscopy and X-ray photoelectron spectroscopy study we present detailed insights into pronounced changes of long-range order and intramolecular conformation during the self-metalation of 2H-5,10,15,20-tetrakis-(3,5-di-tert-butyl)-phenylporphyrin (2HTTBPP) to CuTTBPP on Cu(111). Upon metalation, the porphyrin literally "pops up" from the surface, due to a drastically reduced molecule-substrate interaction.

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