Solvent tuned single molecule dual emission in protic solvents: effect of polarity and H-bonding

Phen-PENMe₂ has recently been proposed as a promising new molecule displaying solvent-tuned dual emission, highlighting an original and newly-described charge transfer model. The study of the photophysical behaviour of this molecule was extended to include protic solvents. The effects of polarity and hydrogen bonding lead to an even more evident dual emission associated with a large multi-emission band in some solvents like methanol, highlighting Phen-PENMe₂ as a promising candidate for white light emission.