| AVS 63rd International Symposium & Exhibition | |
| Surface Science | Thursday Sessions |
| Session SS-ThM |
| Session: | Chirality and Enantioselectivity on Surfaces; Ionic Liquid Interfaces |
| Presenter: | Trolle Linderoth, Aarhus University, Denmark |
| Correspondent: | Click to Email |
Chiral self-assembled structures formed from organic molecules adsorbed on surfaces can be studied at high resolution by Scanning Tunneling Microscopy under Ultra-High Vacuum conditions. Through collaboration between UHV-STM experiments and organic synthesis, we have investigated how molecular conformational flexibility can lead to new chiral effects in the form of chiral switching, chiral accommodation and chiral induction, allowing transfer of chirality from the molecular to the supra-molecular level [1-5]. To generalize these principles, we have recently developed a new system of 3-bit binary conformational switches (Oligo-Naphthalene Ethynylenes) [6, 7] and in particular quantified their dynamic conformational switching and collective effects in ordering using time-resolved STM movies.
[1] Weigelt, S.; Busse. C.; Petersen, L.; Rauls, E.; Hammer, B.; Gothelf, K.V.; Besenbacher, F.; Linderoth, T.R. Nature Materials, 2006, 5 11.
[2] Bombis, C.; Weigelt, S.; Knudsen, M. M.; Nørgaard, M.; Busse, C.; Lægsgaard, E.; Besenbacher, F.; Gothelf, K. V.; Linderoth, T. R. ACS NANO 20104, 297.
[3] Knudsen, M.; Kalashnyk, N.; Masini, F.; Cramer, J.; Lægsgaard, E.: Besenbacher, F.; Linderoth, T. R.; Gothelf, K. .V. Journ. Am. Chem. Soc. 2011, 133, 4896.
[4] Masini, F.; Kalashnyk, N.; Knudsen, M. M.; Cramer, J. R.; Lægsgaard, E.; Besenbacher, F.; Gothelf, K. V.; Linderoth, T. R. Journ. Am. Chem. Soc. 2011,133 13910.
[5] Nuermaimaiti, A.; Bombis, C.; Knudsen, M. M.,; Cramer, J.; Lægsgaard, E.; Besenbacher, F.; Gothelf, K. V.; Linderoth, T. R. ACS Nano 2014,8, 8074.
[6] Cramer, J. R.; Ning, Y.; Shen, C.; Nuermaimaiti, A.; Besenbacher, F.: Linderoth, T. R.; Gothelf, K.V. Eur. J. Org. Chem. 2013 2813.
[7] Ning, Y.; Cramer, J. R.; Nuermaimaiti, A.; Svane, K.; Yu, M.; Lægsgaard, E.; Besenbacher, F.; Xue, Q.-K. ; Ma, X.; Hammer, B.; Gothelf, K. V.; Linderoth, T. R. J. Chem. Phys. 2015142, 101922.