Lanthanide CPs: the guest-tunable drastic changes of luminescent quantum yields, and two photon luminescence

Abstract

Drastic change of luminescent QY was found in a serial of guest-tuned lanthanide CPs. An octupolar-like structure lanthanide CP shows a high two-photon luminescence.

Structural data of highly luminescent lanthanide complexes constructed by bis-tridentate ligand and as sensor for Et2O

“…PXRD peak positions of bulk sample 1a compete well with its simulated result, suggesting high phase purity of the as synthesized 1a ( Fig. 2 ) [2] , [3] , [4] , [5] , [6] , [7] , [8] . Bond lengths and angles for 1a–1c are in line with the reported lanthanide complexes [9] , [10] , [11] , [12] , [13] , [14] , which are listed in Table 1 , Table 2 , Table 3 .…”

Detailed structure information a highly thermostable Tb-cluster that based on a prodrug ligand of 2,4,5-trifluoro-3-methoxybenzoic acid

“…2 ). Detailed information about bond lengths and angles for Tb-cluster are listed in Table 1 , it shows that the bond lengths and angles are in the normal value as our previous reports [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] . PXRD ( Fig.…”

Lanthanide Coordination Polymer Nanosheet Aggregates: Solvothermal Synthesis and Downconversion Luminescence

“…Sample 1 exhibits characteristic transitions of the Tb 3+ ion at 489, 544, 583, and 621 nm, corresponding to the transitions of 5 Figure 6) [16][17][18][19]. The strongest peak is ascribed to the transition of 5 D 4 → 7 F 5 [4,[20][21][22]. The ligand is at the excited 1 * state after the simultaneous absorption of one photon and then transfers to the excited 3 * state through intersystem crossing (ISC), after that, the energy transfer (ET) to 5 D 4 state of Tb 3+ , and luminescence is generated by the 5 D 4 -7 F ( = 6, 5, 4 and 3) transitions.…”

“…In order to get functional lanthanide materials, appropriate synthetic strategies are critical [2,3]. Compared with first-row transition metal ions, lanthanide ions usually display high coordination number and variable coordination geometries, and they will make lanthanide ions become excellent spacers in assembling fascinating coordination polymers [4]. As a subset of such materials, lanthanide CPs continue to attract an escalating attention, owing to their unique optical, electronic, and magnetic properties [5][6][7].…”