Single Heteroatom Fine-Tuning of the Emissive Properties in Organoboron Complexes with 7‑(Azaheteroaryl)indole Systems Miriam Más-Montoya Laura Usea Arturo Espinosa Ferao María F. Montenegro Carmen Ramírez de Arellano Alberto Tárraga José N. Rodríguez-López David Curiel 10.1021/acs.joc.6b00265.s002 https://acs.figshare.com/articles/dataset/Single_Heteroatom_Fine_Tuning_of_the_Emissive_Properties_in_Organoboron_Complexes_with_7_Azaheteroaryl_indole_Systems/3126307 The application of organoboron compounds as light-absorbing or light-emitting species in areas as relevant as organic electronics or biomedicine has motivated the search for new materials which contribute to the progress of those applications. This article reports the synthesis of four-coordinate boron complexes based on the unexplored 7-(azaheteroaryl)­indole ligands. An easy synthetic approach has enabled the fine-tuning of the electronic structure of the organoboron species by modifying a heteroaromatic component in the conjugated system. Furthermore, a comprehensive characterization by X-ray diffraction, absorption and emission spectroscopy, both in solution and in the solid state, cyclic voltammetry, and computational methods has evidenced the utility of this simple strategy. Large Stokes shifts have been achieved in solid thin-films which show a range of emitted light from blue to orange. The synthesized compounds have been used as biocompatible fluorophores in cell bioimaging. 2016-03-18 00:00:00 article reports characterization Large Stokes shifts Azaheteroaryl heteroaromatic component electronic Emissive Properties biomedicine ligand absorption azaheteroaryl strategy Heteroatom application complex Organoboron Complexes cell bioimaging progress utility approach organoboron species material organoboron compounds emission spectroscopy cyclic voltammetry diffraction solution biocompatible fluorophores method synthesis