Influence of Electronic Modulation of Phenanthroline-Derived Ligands on Separation of Lanthanides and Actinides
Abstract
:1. Introduction
2. Results and Discussion
2.1. Solvent Extraction Study
2.2. pKa Determination by NMR Titration
2.3. UV–vis Titration
2.4. Fluorescence Spectroscopy
3. Materials and Methods
3.1. Syntheses
3.2. Solvent Extraction
3.3. pKa Determination
3.4. UV–vis Spectrometric Titration
3.5. Fluorescence Spectroscopy
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
Sample Availability
References
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Ligands | Log pKa | Solvent | Methods | Reference |
---|---|---|---|---|
1,10-phenanthroline | 4.92 | water | - | - |
BTP | 3.3 | 76%Methanol | NMR | [33] |
Terpy | 4.33 | Water, I = 0.1 M | UV/Vis | [34] |
L1 | 3.1 ± 0.1 | Methanol | NMR | [24] |
L1 | 3.1 ± 0.1 | Methanol | NMR | Present Work |
L2 | 2.3 ± 0.2 | Methanol | NMR | Present Work |
L3 | 0.9 ± 0.2 | Methanol | NMR | Present Work |
L4 | 0.5 ± 0.1 | Methanol | NMR | Present Work |
BTPhen Ligands | Logβ12 | Solvent | Methods | Reference |
---|---|---|---|---|
L1 | 12.6 ± 0.4 | Methanol (with 3.3 mol% water) | TRLFS | [38] |
15.6 ± 1.0 | Methanol (I = 0 M) | UV/vis | [26] | |
14.2 ± 0.5 | Methanol (I = 0.01 M) | UV/vis | Present Work | |
11.5 ± 0.6 | Methanol (I = 0.01 M) | TRLFS | Present Work | |
L2 | 11.5 ± 0.3 | Methanol (I = 0.01 M) | UV/vis | Present Work |
12.1 ± 0.8 | Methanol (I = 0.01 M) | TRLFS | Present Work | |
L3 | 8.3 ± 0.6 | Methanol (I = 0.01 M) | UV/vis | Present Work |
L4 | 7.1 ± 0.4 | Methanol (I = 0.01 M) | UV/vis | Present Work |
8.6 ± 0.2 | Methanol (I = 0.01 M) | TRLFS | Present Work |
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Li, M.-M.; Liu, X.-J.; Yang, Q.; Liu, Y.-K.; Nie, J.; Yang, S.-M.; Yang, Y.-Y.; Lou, F.-Y.; Xiao, S.-T.; Ouyang, Y.-G.; et al. Influence of Electronic Modulation of Phenanthroline-Derived Ligands on Separation of Lanthanides and Actinides. Molecules 2022, 27, 1786. https://doi.org/10.3390/molecules27061786
Li M-M, Liu X-J, Yang Q, Liu Y-K, Nie J, Yang S-M, Yang Y-Y, Lou F-Y, Xiao S-T, Ouyang Y-G, et al. Influence of Electronic Modulation of Phenanthroline-Derived Ligands on Separation of Lanthanides and Actinides. Molecules. 2022; 27(6):1786. https://doi.org/10.3390/molecules27061786
Chicago/Turabian StyleLi, Ming-Ming, Xiao-Juan Liu, Qi Yang, Yue-Kun Liu, Jiang Nie, Shu-Ming Yang, Ya-Ya Yang, Fu-Yan Lou, Song-Tao Xiao, Ying-Gen Ouyang, and et al. 2022. "Influence of Electronic Modulation of Phenanthroline-Derived Ligands on Separation of Lanthanides and Actinides" Molecules 27, no. 6: 1786. https://doi.org/10.3390/molecules27061786