First aggregation-induced emission of a Tb(iii) luminophore based on modulation of ligand–ligand charge transfer bands

Abstract

Herein the aggregation-induced emission (AIE) of a Tb(iii) complex is reported for the first time.

Heteroleptic Copper(I)-Based Complexes Incorporating BINAP and π-Extended Diimines: Synthesis, Catalysis and Biological Applications

“…The following supporting information can be downloaded at: https: //www.mdpi.com/article/10.3390/molecules27123745/s1, experimental procedures, photophysical data and NMR and mass spectra [37][38][39][40][41].…”

Aggregation-induced emission of a Eu(III) complex via ligand-to-metal charge transfer

“…Recently, our group has observed AIE from 4f-4f transitions in a Tb(III) complex. AIE was ascribed to modulation of the LLCT quenching state by J-aggregation [10]. In contrast, the H-aggregates do not emit a photon because the T1 level is lower than the emitting level of Tb(III) ion.…”

“…Since then, numerous AIE luminophores with strong emission properties have been reported [2][3][4][5][6][7]. Various AIE luminophore designs, including excited state level modulation, have been studied, expanding the fields of photochemistry and photophysics [8][9][10].…”

“…This ligand provides strong, photosensitized energy transfer quenching (photosensitized energy transfer efficiency: sens < 1.0%), which weakened emission intensity [15][16][17]. Dipyrido[3,2-f:2',3'-h]quinoxaline (dpq) was selected as the energy donor since the large -conjugated dpq ligand promotes the formation of H-aggregates [10]. The H-aggregation allows for drastic stabilization of the T1 level by solidification (Figure 1).…”

Emergence of the super antenna effect in mixed crystals of ytterbium and lutetium complexes showing near-infrared luminescence

“…4 A large number of luminescent Ln( iii ) complexes have been designed by tuning the energy-transfer and relaxation processes. Although some reports have emphasized the effect of the densely packed molecular conditions on Ln( iii ) complexes in crystals, 5–9 the energy transfer and quenching process in crystals remain to be studied in detail.…”