Thiophene insertion for continuous modulation of the photoelectronic properties of triphenylamine-based metal–organic frameworks for photocatalytic sulfonylation–cyclisation of activated alkenes
ligand engineering strategy of inserting different numbers of thiophenes into the scaffold of triphenylamine (TPA)-based ligands was developed to improve the visible light absorption, enhance the oxidation potentials of the ground states, and decrease the reduction potentials of the excited states, providing a powerful tool for continuous modulation of the photoelectronic properties of metal–organic