Issue 11, 2024

Modulation of ΔEST and room temperature phosphorescence in carbazole derivatives

Abstract

A simple strategy to modulate the singlet–triplet energy gap in 3,6-diaryl-N-acetophenylcarbazole derivatives is developed. Different substituents significantly influenced ΔEST, which is correlated for the first time with the singlet–triplet state dipole moments. Phosphorescence at ambient conditions in powder form (τ is up to 248 μs) and ultra long lifetime (up to 2.2 s) at 77 K is observed.

Graphical abstract: Modulation of ΔEST and room temperature phosphorescence in carbazole derivatives

Supplementary files

Article information

Article type
Communication
Submitted
17 Oct 2023
Accepted
02 Jan 2024
First published
02 Jan 2024

Chem. Commun., 2024,60, 1408-1411

Modulation of ΔEST and room temperature phosphorescence in carbazole derivatives

K. V. Barhate, A. P. Wadawale, K. R. S. Chandrakumar and N. Agarwal, Chem. Commun., 2024, 60, 1408 DOI: 10.1039/D3CC05119F

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