Closo- or Nido-Carborane Diphosphane as Responsible for Strong Thermochromism or Time Activated Delayed Fluorescence (TADF) in [Cu(N^N)(P^P)]^0/.

ABSTRACT: Ortho-closo or ortho-nido-carborane-diphosphanes have been selected to prepare the heteroleptic cationic or neutral [Cu(N^N){(PPh₂)₂C₂B₁₀H₁₀}]PF₆ (1) and [Cu(N^N){(PPh₂)₂C₂B₉H₁₀}] (2) [N^N = 2-(4-thiazolyl)benzimidazole], respectively. Complexes 1 and 2 display very different emissive behavior. Neutral complex 2 exhibits TADF (time activated delayed fluorescence) which has been studied both as powder and PMMA composite with similar ΔE(S₁ - T₁), τ(T₁), and τ(S₁) in both phases. Cationic complex 1 displays a much lower quantum yield than 2 and does not s

SUBMITTER: Alconchel A 

PROVIDER: S-EPMC8653344 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature