This side we present the recent publications

G.Wang A. Rühling, S. Amirjalayer M. Knor, J. B. Ernst, C. Richter, H.-J. Gao, A. Timmer H.Y. Gao N.L. Doltsinis, F. Glorius, H. Fuchs
Ballbot-type motion of N-heterocyclic carbenes on gold surfaces
Nature Chemistry (2016)

© 2016 Macmillan Publishers Limited

Recently, N-heterocyclic carbenes (NHCs) were introduced as alternative anchors for surface modifications and so offered many attractive features, which might render them superior to thiol-based systems. However, little effort has been made to investigate the self-organization process of NHCs on surfaces, an important aspect for the formation of self-assembled monolayers (SAMs), which requires molecular mobility. Based on investigations with scanning tunnelling microscopy and first-principles calculations, we provide an understanding of the microscopic mechanism behind the high mobility observed for NHCs. These NHCs extract a gold atom from the surface, which leads to the formation of an NHC–gold adatom complex that displays a high surface mobility by a ballbot-type motion. Together with their high desorption barrier this enables the formation of ordered and strongly bound SAMs. In addition, this mechanism allows a complementary surface-assisted synthesis of dimeric and hitherto unknown trimeric NHC gold complexes on the surface.

W. P. Schleich, K. S. Ranade, C. Anton, M. Arndt, M. Aspelmeyer, M. Bayer, G. Berg, T. Calarco, H. Fuchs, E. Giacobino, M. Grassl, P. Hänggi, W. M. Heckl, I.‑V. Hertel, S. Huelga, F. Jelezko, B. Keimer, J. P. Kotthaus, G. Leuchs, N. Lütkenhaus, U. Maurer, T. Pfau, M. B. Plenio, E. M. Rasel, O. Renn, C. Silberhorn, J. Schiedmayer, D. Schmitt‑Landsiedel, K. Schönhammer, A. Ustinov, P. Walther, H. Weinfurter, E. Welzl, R. Wiesendanger, S. Wolf, A. Zeilinger, P. Zoller
Quantum technology: from research to application
Applied Physics B, 31pp (2016)


The term quantum physics refers to the phenomena and characteristics of atomic and subatomic systems which cannot be explained by classical physics. Quantum physics has had a long tradition in Germany, going back nearly 100 years. Quantum physics is the foundation of many modern technologies. The first generation of quantum technology provides the basis for key areas such as semiconductor and laser technology. The “new” quantum technology, based on influencing individual quantum systems, has been the subject of research for about the last 20 years. Quantum technology has great economic potential due to its extensive research programs conducted in specialized quantum technology centres throughout the world. To be a viable and active participant in the economic potential of this field, the research infrastructure in Germany should be improved to facilitate more investigations in quantum technology research.

M. Hirtz, W. Feng, H. Fuchs, P. A. Levkin
Click-chemistry immobilized 3D-infused microarrays in nanoporous polymer substrates
Adv. Mater. Interfaces, 6pp (2016)


On-surface synthesis of covalently bond nanostructures under ultrahigh vacuum conditions has received increased attention in the recent years. This approach allows to study solvent-free chemical reactions and moreover to use well-defined substrates, which act as a catalyst and/or exerting steric effects leading to kinetic and regioselective control of the chemical process at hand. Recently, successful 1,3-dipolar azide–alkyne cycloaddition reactions were performed on metal substrates with complete regioselectivity of a specific product. This chapter presents a summary of these experimental efforts on different metal substrates, while also focusing on a comprehensive understanding of the catalyst prerequisite for on-surface coupling reactions and a quantitative description of steric effects dominating the coupling mechanism and the regioselectivity of the reaction products. Future perspectives for the bottom-up development of functional nanostructures involving on-surface azide–alkyne cycloadditions are discussed.

O. Díaz Arado H. Mönig H. Fuchs
On-surface synthesis by azide–alkyne cycloaddition reactions on metal surfaces
On-Surface Synthesis: Part of the series Advances in Atom and Single Molecule Machines
ISBN: 978-3-319-26600-8, S.101-114 (2016)