Luminescence Switching of Organogold(I) Complexes between Aggregation-induced Phosphorescence Enhancement and Aggregation-caused Quenching by Balancing Auxiliary Ligands around the Au I Center

Attaching AIE-active L1 ([1,1':2',1'':4'',1'''-quaterphenyl]-2-yldiphenylphosphane) to AuCl, shortened the distances of P-C bonds to promote electron cloud overlap between Au and L1, affords 1 (L1AuCl) with aggregation-induced phosphorescence enhancement...

Full description

Saved in:
Bibliographic Details
Published inChemistry, an Asian journal Vol. 16; no. 9; pp. 1165 - 1170
Main Authors Zhuo, Hao, Chi, Xin, Jiang, Mengtian, Xu, Haibing, Zeng, Minghua
Format Journal Article
LanguageEnglish
Published Germany 03.05.2021
Subjects
auxiliary ligands
AIPE
organogold(I)
reversibly switch
ACQ
Online AccessGet full text

Cover

More Information
Summary:Attaching AIE-active L1 ([1,1':2',1'':4'',1'''-quaterphenyl]-2-yldiphenylphosphane) to AuCl, shortened the distances of P-C bonds to promote electron cloud overlap between Au and L1, affords 1 (L1AuCl) with aggregation-induced phosphorescence enhancement (AIPE) activity by LMCT transitions. Then substituting the coplanar L2 (9-ethynylanthracene) for the Cl in 1 providing 2, switches the luminescence to aggregation-caused quenching (ACQ) activity. Furthermore, we restore the performance from ACQ to AIPE by metathesis reactions to transfer 2 into 1. It is versatile synthetic strategy of reversible transformation between 1 and 2 that switches the luminescence of organogold(I) between AIPE and ACQ through balancing auxiliary ligands around the given metal.
ISSN:1861-4728
1861-471X
DOI:10.1002/asia.202100186