Crystal Structure and Optical Properties of a Chiral Mixed Thiolate/Stibine-Protected Au18 Cluster

• DOI: 10.1021/jacs.1c10778
• Publication Date: 2021-12-27T12:36:14Z
• Authors: Justin B. Patty; Shana Havenridge; Dylan Tietje-Mcki...; Maxime A. Siegler; Kundan K. Singh; Roumina Hajy Hoss...; Mohamed Ghabin; Christine M. Aikens; Anindita Das
• Keywords: Stibine; Gold cluster; Chirality

We report the first example of a chiral mixed thiolate/stibine-protected gold cluster, formulated as Au18(S-Adm)8(SbPh3)4Br2 (where S-Adm = 1-adamantanethiolate). Single crystal X-ray crystallography reveals origin chirality in cluster to be introduction rotating arrangement Au2(S-Adm)3 and Au(S-Adm)2 staple motifs on an achiral Au13 core subsequent capping remaining atoms by SbPh3 Br- ligands. Interestingly, structure properties this new Au18 are found different from other reported clusters only stibine-protected [Au13(SbPh3)8Cl4]+ cluster. Detailed analyses geometric electronic structures carried out gain insights into its optical well reactivity stability such monolayer-protected clusters.