| AVS 62nd International Symposium & Exhibition | |
| Scanning Probe Microscopy Focus Topic | Friday Sessions |
| Session SP+AS+MI+NS+SS-FrM |
| Session: | Probe-Sample Interactions |
| Presenter: | Bruno Schuler, IBM Research - Zurich, Switzerland |
| Authors: | B. Schuler, IBM Research - Zurich, Switzerland N. Pavliček, IBM Research - Zurich S. Collazos, CIQUS, Universidade de Santiago de Compostela N. Moll, IBM Research - Zurich S. Fatayer, IBM Research - Zurich D. Pérez, CIQUS, Universidade de Santiago de Compostela E. Guitán, CIQUS, Universidade de Santiago de Compostela G. Meyer, IBM Research - Zurich D. Peña, CIQUS, Universidade de Santiago de Compostela L. Gross, IBM Research - Zurich |
| Correspondent: | Click to Email |
Reactive intermediates are involved in most chemical transformations. However, their characterization is a great challenge because of their short lifetime and high reactivity.
Here we report on the creation of single radicals and diradicals on a thin insulating surface by means of atomic manipulation. Importantly, the thin insulating film facilitates the stabilization of these reactive intermediates at cryogenic temperatures. The molecules were characterized by atomic-resolution atomic force microscopy (AFM) imaging with a CO functionalized tip [1] and scanning tunneling microscopy (STM) orbital imaging [2]. We show that the molecules’ reactivity is preserved even at low temperatures by performing different on-surface reactions by atomic manipulation. As an example, the generation of aryne is discussed, a very reactive intermediate caught for the first time [3].
References:
[1] L. Gross et al. Science 325, 1110 (2009)
[2] J. Repp et al. Phys. Rev. Lett. 94, 026803 (2005)
[3] N. Pavliček et al. On-surface generation and imaging of arynes by atomic force microscopy. (submitted)