Orientation dependent molecular friction on organic layer compound crystals

Fessler, Gregor; Zimmermann, Iwan; Glatzel, Thilo; Gnecco, Enrico; Steiner, Pascal; Roth, Raphael; Keene, Tony D.; Liu, Shi-Xia; Decurtins, Silvio; Meyer, Ernst (2011). Orientation dependent molecular friction on organic layer compound crystals. Applied physics letters, 98(8), 083119. Melville, N.Y.: American Institute of Physics 10.1063/1.3559227

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High resolution friction force maps of the benzylammonium terminated crystalline surface of a layer compound are presented. The lateral force map acquired with an atomic force microscope, reveals a significant contrast between different molecular orientations yielding molecular rows which differ from their neighboring ones. The single crystals are formed by stacks of copper oxalate sheets sandwiched between stereoregular organic cations, resulting in highly organized surface structures. Single molecular defects are observed at small loads. The experimental results are compared with numerical calculations which indicate a transition from an unperturbed state at small loads to a distorted state at higher loads. (C) 2011 American Institute of Physics.

Item Type:

Journal Article (Original Article)


08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP)

UniBE Contributor:

Zimmermann, Iwan, Liu, Shi-Xia, Decurtins, Silvio




American Institute of Physics




Factscience Import

Date Deposited:

04 Oct 2013 14:26

Last Modified:

05 Dec 2022 14:08

Publisher DOI:


Web of Science ID:



https://boris.unibe.ch/id/eprint/9534 (FactScience: 215284)

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