Two-in-One Approach toward White-Light Emissions of Dimeric B/N Lewis Pairs by Tuning the Ortho -Substitution Effect.

A new family of dimeric B/N Lewis pairs with sterically tunable substitutions has been accomplished using the Two-in-One design strategy. Their structures are characteristic of doubly B/N-containing cores, and the electronic interactions between B and N centers can be modulated by the steric effects of ortho -substitutions from methyl groups. Interestingly, unique white-light emissions were achieved for 2M'2BNM and 1M2BNM , ascribed to the integration of two triarylborane species (B sp 2 - and B sp 3 -hybridization) into one single molecule.