Rare-earth-based donor–acceptor metal–organic frameworks with low thermal quenching and dual emission mechanisms for high-temperature sensing

- and TSCT-based emission peaks exhibited good polynomial relationships with increasing temperature. Furthermore, by selecting an appropriate PAH guest as the donor, reversible color changes (red to green) in response to temperature variations can be observed in the corresponding MOF. These results highlight the potential of RE-DA-MOFs as low thermal-quenching materials and high-temperature fluorescent thermometers.