Authors
Stefan Knoppe, Thomas Bürgi
Publication date
2014/4/15
Source
Accounts of chemical research
Volume
47
Issue
4
Pages
1318-1326
Publisher
American Chemical Society
Description
Conspectus
Over recent years, research on thiolate-protected gold clusters Aum(SR)n has gained significant interest. Milestones were the successful determination of a series of crystal structures (Au102(SR)44, Au25(SR)18, Au38(SR)24, Au36(SR)24, and Au28(SR)20). For Au102(SR)44, Au38(SR)24, and Au28(SR)20, intrinsic chirality was found. Strong Cotton effects (circular dichroism, CD) of gold clusters protected by chiral ligands have been reported a long time ago, indicating the transfer of chiral information from the ligand into the cluster core.
Our lab has done extensive studies on chiral thiolate-protected gold clusters, including those protected with chiral ligands. We demonstrated that vibrational circular dichroism can serve as a useful tool for the determination of conformation of the ligand on the surface of the cluster.
The first reports on crystal structures of Au102(SR)44 and Au38(SR)24 revealed the …
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Scholar articles
S Knoppe, T Bürgi - Accounts of chemical research, 2014