Chiral assemblies of nickel lysinate via the corrosive adsorption of (S)-lysine on Ni/Au{111}
Abstract
The adsorption of (S)-lysine onto submonolayer coverages of Ni on Au{111} was investigated by scanning tunnelling microscopy and reflection absorption infrared spectroscopy. Arrays of two-dimensional Ni nanoclusters were prepared on the Au{111} surface. The sticking probability of (S)-lysine was found to increase by an order of magnitude on Au surfaces templated by Ni compared to the clean Au surface. (S)-lysine corrodes Ni from the edges of clusters forming nickel lysinate complexes which self-assemble to form ordered molecular arrays. Below a threshold coverage, the Ni clusters are completely destroyed by (S)-lysine adsorption. Under these conditions, extensive restructuring of the Au steps is observed. The implications of our work for understanding the role of chiral modifiers in Ni catalysed enantioselective catalysis are discussed.
Citation
Wilson , K E & Baddeley , C J 2014 , ' Chiral assemblies of nickel lysinate via the corrosive adsorption of ( S )-lysine on Ni/Au{111} ' , Surface Science , vol. 629 , pp. 102-107 . https://doi.org/10.1016/j.susc.2014.03.026
Publication
Surface Science
Status
Peer reviewed
ISSN
0039-6028Type
Journal article
Description
KEW acknowledges the Engineering and Physical Sciences Research Council (EPSRC) for the award of a PhD studentship. The authors also acknowledge Professor Neville Richardson for access to his UHV STM/RAIRS facility.Collections
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