Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14365/1503
Title: | Dynamics of Spatially Confined Bisphenol A Trimers in a Unimolecular Network on Ag(111) | Authors: | Lloyd, Julian A. Papageorgiou, Anthoula C. Fischer, Sybille Oh, Seung Cheol Saglam, Ozge Diller, Katharina Duncan, David A. |
Keywords: | Self-assembly rotor arrays scanning tunneling microscopy dispersion-corrected density-functional tight-binding silver surface Molecular Machines Single-Molecule Surfaces Rotation |
Publisher: | Amer Chemical Soc | Abstract: | Bisphenol A (BPA) aggregates on Ag(111) shows a polymorphism between two supramolecular motifs leading to formation of distinct networks depending on thermal energy. With rising temperature a dimeric pairing scheme reversibly converts into a trimeric motif, which forms a hexagonal superstructure with complex dynamic characteristics. The trimeric arrangements notably organize spontaneously into a self-assembled one-component array with supramolecular BPA rotors embedded in a two-dimensional stator sublattice. By varying the temperature, the speed of the rotors can be controlled as monitored by direct visualization. A combination of scanning tunneling microscopy and dispersion corrected density-functional tight-binding (DFTB-vdW(surf)) based molecular modeling reveals the exact atomistic position of each molecule within the assembly as well as the driving force for the formation of the supramolecular rotors. | URI: | https://doi.org/10.1021/acs.nanolett.5b05026 https://hdl.handle.net/20.500.14365/1503 |
ISSN: | 1530-6984 1530-6992 |
Appears in Collections: | PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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