Multi-functional lanthanide-CPs based on tricarboxylphenyl terpyridyl ligand as ratiometric luminescent thermometer and highly sensitive ion sensor with turn on/off effect

Abstract

The binary compound Ln-CP Tb0.897Eu0.103tcptpy has been developed as a ratiometric luminescent thermometer. Its relative sensitivity can reach up to 8.41% K−1 in the 305 to 340 K range.

Multi‐Emission from Single Metal–Organic Frameworks under Single Excitation

“…Also, some MOFs with cavities (e.g., MIL-101 and UiO-66) could lock the guest molecules to avoid their leakage. Moreover, any energy interaction between the host MOFs and guest molecules, such as charge transfer or Förster [24] Copyright 2020, the Royal Society of Chemistry.…”

“…Figure 3. a) Coordination environment of the Tb 3+ center and b) coordination modes of Tb-tcptpy MOF. c) Solid emission spectraand d) temperature dependence linear response of Tb 0.897 Eu 0.103 (tcptpy) from 300 to 340 K. Reproduced with permission [24]. Copyright 2020, the Royal Society of Chemistry.…”

Overview of N‐Rich Antennae Investigated in Lanthanide‐Based Temperature Sensing

“…In 2020, Wang et al developed aM OF with the ligand 4-(2,4,6-tricarboxylphenyl)-4,2':6',4''-terpyridine (tcptpy) 26,T b 0.897 Eu 0.103 tcptpy. [82] The materiali so perative in the range 305-340K and showedahigh maximum sensitivity of 8.41 % K À1 at 340 K. The calculatedt riplet excited state of the linker [85] The temperature sensoro perates with as ensitivity of 0.11% K À1 at 450 Ki nt he range of 100-450K.T he MOF shows high thermals tability,u pt o6 90 K. Hu et al designed aE u/Tb (4:6) coordination polymer with the ligands 2-(2-sulfophenyl)-imidazol(4,5-f)(1,10)-phenanthroline (sip) 33 and glutaric acid. [86] The materials howed good thermals tability, up to 700 K. The sensor operates in the region 50-225 Kw ith as ensitivity of 0.68 %K À1 .Z areba and co-workers investigated two CP consisting both of phenanthrolinea nd 1,3,5-benzenetricarboxylica cid (1,3,5-btc), the first MOF contains 0.88 %E ua nd 22.87 %T b (1Eu23Tb) and the second MOF contains 1.74 %E ua nd 21.88 %T b( 2Eu22Tb).…”

Development of tuneable green-to-red emitting transparent film based on Nafion with TbIII/EuIII β-diketonate complexes modulated by pH and proton flow

“…A comparison with other reported examples in terms of sensor applications is that of a binary co-doped Tb 1Àx Eu x -tcptpy (H 3 tcptpy = 4-(2,4,6-tricarboxylphenyl)-4,2 0 :6 0 ,4 00 -terpyridine), which behaves as a luminescent thermometer. 21 This system has a SAP local symmetry of LnO 7 N 1 , and the intensity ratio I( 5 D 0 -7 F 2 )/I( 5 D 0 -7 F 1 ) is about 10.8 for Eu-tcptpy due to low site symmetry. In particular, Tb 0.897 Eu 0.103 -tcptpy with x = 0.103 exhibits the best temperature dependence of the emission, with a linear decrease of 5 D 4 -7 F 5 for Tb III and a linear increase of 5 D 0 -7 F 2 for Eu III in the range 305-340 K. As described above, functional materials that can precisely control the luminescence intensity of Tb III and Eu III have a variety of potential applications.…”