Cs[B3O3F2(OH)2]: discovery of a hydroxyfluorooxoborate guided by selective organic–inorganic transformation

Abstract

Selective transformation between organic and inorganic systems is crucial but still remains a challenge. Herein, we demonstrated that selective organic–inorganic transformation is a simple but effective strategy to find new hydroxyfluorooxoborates. By replacing the [Ph₄P]/[Ph₃MeP] organic cations with Cs atoms, a new hydroxyfluorooxoborate Cs[B₃O₃F₂(OH)₂] with three-membered [B₃O₃F₂(OH)₂] clusters was synthesized. Theoretical analysis confirmed the effects of different components in the lattice of reported structure on the optical properties.