“…Metal–organic frameworks (MOFs) are an important class of coordination compounds extensively investigated during the last two decades. The porosity of MOFs could be systematically tuned in a wide range by variation of the topology and the length of the organic linker [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ], while some of the physical properties of the framework mainly depend on the nature of metal centers [ 9 , 10 , 11 , 12 , 13 ]. Particularly, lanthanide coordination compounds are widely studied in magnetic and luminescent applications due to the unique electron configuration of the corresponding Ln(III) cations [ 14 , 15 , 16 , 17 , 18 ].…”