Luminescence Switching of Organogold(I) Complexes between Aggregation-induced Phosphorescence Enhancement and Aggregation-caused Quenching by Balancing Auxiliary Ligands around the AuI Center |
| |
| Authors: | Hao Zhuo Xin Chi Mengtian Jiang Prof?Dr Haibing Xu Prof?Dr Minghua Zeng |
| |
| Affiliation: | Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062 P. R. China |
| |
| Abstract: | 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 AuI and L1 , affords 1 ( L1 AuCl) with aggregation-induced phosphorescence enhancement (AIPE) activity by 3LMCT 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. |
| |
| Keywords: | AIPE ACQ auxiliary ligands organogold(I) reversibly switch |
|
|
