Multi-colour and red emissions from a small donor-acceptor molecule by breaching Kasha's rule

Abstract

Reported herein is a small (MW 260 Da) organic molecule that emits multicolour and red lights, capitalising simultaneous anti-Kasha and donor-acceptor effects. The molecule emits from two excited states, namely S1 and S3. Introduction of donor-acceptor substituents resulted in the large Stokes shifts (>5000 cm -1 ) with negligible spectral overlap.

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Article information

Article type
Communication
Submitted
03 Feb 2026
Accepted
28 May 2026
First published
02 Jun 2026
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2026, Accepted Manuscript

Multi-colour and red emissions from a small donor-acceptor molecule by breaching Kasha's rule

P. G, A. Sharma, S. De and S. Pramanik, Chem. Commun., 2026, Accepted Manuscript , DOI: 10.1039/D6CC00738D

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