Br2 induced oxidative pore modification of a porous coordination network

Abstract

Iodinated pores of a Zn-based coordination network were modified by Br₂ oxidation to produce brominated pores in a polycrystalline-to-polycrystalline manner while maintaining the same network topology. Ab initio X-ray powder diffraction analysis and Raman spectroscopy revealed that the brominated pore can trap Br₂ or I₂ by strong σ/π-type interactions. A kinetic study in solution revealed that the pore modification by Br₂ oxidation is much faster than the Br₂ encapsulation process.