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

Key Points

• This research aims to explore the emission properties of a small donor-acceptor molecule that breaches Kasha's rule.
• Investigation of a small organic molecule with a molecular weight of 260 Da
• Analysis of light emissions from two excited states
• Examination of photophysical properties and donor-acceptor effects
• The molecule emits multicolour and red light due to two distinct excited states
• Simultaneous anti-Kasha and donor-acceptor effects enhance emission properties
• Unique emissions established for this size of organic molecule