Iridium(iii)–surfactant complex immobilized in mesoporous silica via templated synthesis: a new route to optical materials

• DOI: 10.1039/c1jm10878f
• Publication Date: 2011-05-11T12:00:22Z
• Authors: Moema de Barros e...; Jesus Miguel Fern...; Thiago Branquinho...; Hellmut Eckert; Luisa De Cola; Andrea Simone Stu...
• Keywords: Luminophore; Ammonium bromide

In this work we report the preparation of a new blue-emitting material based on templated synthesis mesoporous silica (MCM-41) using micellar solutions newly synthesized monocationic metallosurfactant complex bis[1-benzyl-4-(2,4-difluorophenyl)-1H-1,2,3-triazole](4,4′-diheptadecyl-2,2′-bipyridine)–iridium(III) chloride in hexadecyl-trimethyl-ammonium bromide (CTAB). Under ambient conditions, significant increases excited state lifetime and quantum yield values (up to 45%), were obtained for solid materials comparison corresponding solutions. Solid 1H 19F NMR spectroscopies successfully employed quantifying luminophore content terms Ir–surfactant CTAB ratios.