The high degree of corrosivity and reactivity of bromine, which is released from various
sources, poses a serious threat to the environment. Moreover, its coexistence with iodine
forming an equilibrium compound, iodine monobromide (IBr) necessitates the selective
capture of bromine from halogen mixtures. The electrophilicity of halogens to π‐electron rich
structures enabled us to strategically design a covalent organic framework for halogen
capture, featuring a defined pore environment with localized sorption sites. The higher …

Halogens like bromine and iodine pose a serious threat to the environment as they cause
ozone layer depletion.[1] Although iodine is beneficial to human health in small amounts,
bromine is highly corrosive and volatile, thus making it toxic.[2] Bromine emissions are
mainly due to its use in aerosols, flame retardants, pharmaceuticals or fine chemical
production, reduction of mercury vapor emissions, and agriculture.[3] Moreover, bromine can
coexist with iodine in an equilibrium product of IBr.[4] These problems connected to bromine …