Rapid Conversion of a Au9Ag12 into a AuxAg16‐x Nanocluster via Bisphosphine Ligand Engineering. Issue 70 (25th October 2021)

• Record Type: Journal Article
• Authors: Zhou, Manman; Qi, Chunxia; Yan, Xiaoxun; Li, Xiaowu; Jin, Shan; Zhu, Manzhou
• Is Part Of: Chemistry. Volume 27:Issue 70(2021)
• Page Start: 17554
• Page End: 17558
• Publication Date: 2021-10-25
• Subjects: aggregation-induced emission -- alloy nanocluster -- bisphosphine ligand engineering -- restructuring; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.202102858
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: The [Aux Ag16‐x (SAdm)8 (Dppe)2 ] nanocluster with aggregation‐induced emission (AIE) was synthesized from a non‐fluorescent [Au9 Ag12 (SAdm)4 (Dppm)6 Cl6 ](SbF6 )3 nanocluster via a ligand‐exchange engineering (Dppe=1, 2‐Bis(diphenylphosphino)ethane, Dppm=Bis(diphenylphosphino)methane, HSAdm=1‐Adamantanethiol). The nanocluster has a Au‐doped icosahedral Aux Ag13‐x core, capped by two Ag(SR)3, one Ag(SR)2 and two Dppe ligands. By changing the achiral Dppe ligand into a chiral dbpb ligand ((2S, 3S)‐(‐)‐Bis(diphenylphosphino)butane or (2R, 3R)‐(+)‐2, 3‐Bis(diphenylphosphino)butane), chiral nanoclusters are obtained. ESI‐MS and UV‐vis spectroscopy were performed to track the reaction. This work provides guidance for the construction of new clusters by etching clusters with multidentate phosphine ligands. Abstract : Via ligand engineering with Dppe, a non‐fluorescent [Au9 Ag12 (SAdm)4 (Dppm)6 Cl6 ](SbF6 )3 is reconstructed into a [Aux Ag16‐x (SAdm)8 (Dppe)2 ] with aggregation‐induced emission. Furthermore, chiral nanoclusters Aux Ag16‐x (SAdm)8 (R/S‐Dbpb)2 are obtained with chiral ligand Dbpb. This work provides guidance for the construction of novel clusters by etching clusters with multidentate phosphine ligands.