How to achieve near unity fluorescence quantum yields on gold(I) benzothiadiazole-based derivatives

Highly emissive supramolecular gold(i)–BTD materials

“…Emission efficiency close to 100% was obtained for L and 2 in PMMA, PS and Zeonex matrixes. These results are similar to those of the BTD derivatives containing phosphanes reported by us, 47 supporting the importance of the dispersion of the luminophores in organic materials to obtain highly luminescent materials.…”

“…Literature methods have been used to prepare 4-ethynyl-7-(4-nonylphenyl)benzo[ c ][1,2,5]thiadiazole ( L ). 47…”

Supramolecular gold(i) vesicles: an in-depth study of their aggregation process

“…20,21 The band at lower energies in both gold( i ) complexes is slightly red shifted when gold( i ) is coordinated to the chemical structure as observed in other similar compounds. 20,22,23…”

“…20,21 The band at lower energies in both gold(I) complexes is slightly red shifted when gold(I) is coordinated to the chemical structure as observed in other similar compounds. 20,22,23 Emission spectra were recorded in solution upon excitation of the samples at the lowest energy absorption band. Ligandcentred fluorescence emission has been observed in L1, L2 and their gold(I) derivatives with a slight red shift in the emission maxima.…”

Fluorescence vs. Phosphorescence: Which Scenario Is Preferable in Au(I) Complexes with Benzothiadiazoles?

“…The study of two Pt(II) complexes revealed the existence of two channels, S 1 –T 1 and S 1 –T 2 ; structural differences in the complexes result in a dominance of either one or the other channel, which induces their different luminescent behaviour [ 22 ]. Recently reported benzothiadiazole-based Au(I) compounds feature high quantum yields, reaching 97% in various organic matrices [ 23 ]. Notably, in the latter complexes, only a prompt fluorescence was observed.…”