Andrew's Manuscript in Chemical Science

Our manuscript on ‘Modulation of Charge Transfer by N-Alkylation to Control Photoluminescence Energy and Quantum Yield’ has just been published in Chemical Science.

The research shows that emission color and the presence of charge-transfer excited states can becontrolled by ­N-alkylation of organic chromophores. In the paper, we demonstrate the concept by alkylatiing the two distinct nitrogen sites of quinine. The kinetic stabilities of the resulting salts allow selective quaternization at either site in a manner that is impossible using reversible protonation. This approach can be applied generally to tune the emissive states and physical properties of N­-heterocyclic organic photoactive materials.

Congratulations to our PhD student who led the work along with our fantastic collaborators in the Curchod, Monkman, and Etherington groups.