On November 4th, Dr. Anthoula Papageorgiou (TUM Department of Physics) will give a talk entitled “Pretty with a Twist – Complex, Porous, Chiral Nano-Patterns Arise from a Simple Linear Building Block”. Papageorgiou and her team joined forces to explore a new feature in two-dimensional architectures: a chemical group named hydroxamic acid. They have functionalized a simple rod-like building block with said acids at both ends which form molecular networks that not only display the complexity and beauty of mono-component self-assembly on surfaces but also exhibit exceptional properties. A Combination of advanced microscopy tools, spectroscopy and density functional theory investigations found that the molecular building block adapts its shape in the environment of the supporting surface and its neighbouring molecules. This affords an unusual manifold of supramolecular surface motifs: two to six molecules held together by intermolecular interactions (TUM press release).
In their future work, Papageorgiou and her team hope to steer these kinds of phenomena for chiral recognition and artificial nano-machinery.
Publication
C. Jing, B. Zhang, S. Synkule, M. Ebrahimi, A. Riss, W. Auwärter, L. Jiang, G. Médard, J. Reichert, J. V. Barth und A. C. Papageorgiou, Snapshots of dynamic adaptation: Two-dimensional molecular architectonics with linear bis-hydroxamic acid linear modules Angew. Chem., 131, 52 19124-19132 – DOI: 10.1002 / ange.201912247.
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