A 3D porous coordination polymer transformed from a 1D nonporous coordination polymer for selectively sensing of diiodomethane

By adding K+, one-dimensional (1D) chain structure (1) can be converted into three-dimensional (3D) porous structure (BIPT-2). Owing to the porous of BIPT-2, it shows excellent selectivity and sensitivity to diiodomethane than 1 through a strong fluorescence quenching.225