Coadsorption of ZnTPP and 2HMCTPP on Rutile TiO2(110)

Muth M, Wolfram A, Steinrück HP, Lytken O (2024)

Publication Type: Journal article

Publication year: 2024

Journal

DOI: 10.1002/cphc.202400795

Abstract

Pure zinc tetraphenylporphyrin (ZnTPP) adsorbs on rutile TiO2(110) as flat-lying molecules, mostly interacting with the surface through weak van-der-Waals interactions. Pure monocarboxyphenyl triphenylporphyrin (2HMCTPP) forms a covalent bond to the rutile TiO2(110) surface through the carboxylic acid group, yielding densely-packed layers of upright-standing molecules. If given the chance, 2HMCTPP could therefore be expected to displace the weaker-bonding ZnTPP molecules. However, if 2HMCTPP is deposited on top of a ZnTPP layer, a coadsorption structure instead forms, with the carboxylic-acid groups of the 2HCMTPP molecules bonding to titanium atoms of the surface exposed by gaps between the molecules in the flat-lying ZnTPP adsorption structure.

Authors with CRIS profile

Maximilian Muth Lehrstuhl für Physikalische Chemie II Alexander Wolfram Lehrstuhl für Physikalische Chemie II Hans-Peter Steinrück Lehrstuhl für Physikalische Chemie II Ole Lytken Lehrstuhl für Physikalische Chemie II

How to cite

APA:

Muth, M., Wolfram, A., Steinrück, H.-P., & Lytken, O. (2024). Coadsorption of ZnTPP and 2HMCTPP on Rutile TiO2(110). ChemPhysChem. https://doi.org/10.1002/cphc.202400795

MLA:

Muth, Maximilian, et al. "Coadsorption of ZnTPP and 2HMCTPP on Rutile TiO2(110)." ChemPhysChem (2024).

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