[Zurück]

V. Truttmann, N. Barrabés-Rabanal, G. Rupprechter:
"CHIRAL Au NANOCLUSTERS - A STEP TOWARDS HETEROGENEOUS ASYMMETRIC CATALYSIS";
in: "Vienna Young Scientists Symposium", Book-of-Abstracts.com / D.I. Krebs, Gumpoldskirchen, 2019, ISBN: 978-3-9504017-9-0, S. 68 - 69.

Monolayer protected Au nanoclusters (NCs) usually consist of less than 100 metal atoms stabilized
by organic ligands. Unlike nanoparticles, they can be synthesized with atomic precision, leading
to monodisperse clusters of specific size, structure and properties [1]. Therefore, these clusters are
perfect materials to be applied in catalysis, in particular to study structure-activity relationships.
For some Au nanoclusters, existence of intrinsic structural chirality has been reported. Besides,
the chirality can also be introduced to previously achiral clusters by binding of chiral protecting
ligands [1]. Thus, combining this with the possibility to obtain atomically defined structures, chiral
Au nanoclusters are ideal candidates as catalysts in asymmetric catalysis. This research area is currently
dominated by homogeneous catalysis featuring mainly chiral coordination complexes. However,
moving towards heterogeneous systems would yield several benefits, e.g. concerning catalyst
stability, separation or recyclability.