Ring‐fused Dipyrrolyldiketone Difluoroboron Complexes for Pioneering Exploration of Photothermal Effect

Abstract Dipyrrolyldiketone difluoroboron complexes (BONEPYs) reported by Maeda were mainly applied for the selective recognition of anions. Herein, innovative introduction of the ring‐fused segment in BONEPY system resulted in a twisted structure by X‐ray crystallographic analysis and enhanced the spectral bathochromic shift performance. BONEPY‐nanoparticles adjusted the energy release process of the excited state, endowed high photothermal effect, and could be degraded and discharged out of the body potentially. BONEPY‐nanoparticles are the novel phototherapeutic reagent with improved safety and low side effect.