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Lu Y, Chai H, Yu K, Huang C, Li Y, Wang J, Ma J, Tan W, Zhang G. A reusable MOF supported single-site nickel-catalyzed direct N-alkylation of anilines with alcohols. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Feng N, Li P, Xu A, Yu L, Li H. In situ formation and dispersion of lanthanide complexes in wormlike micelles. SOFT MATTER 2022; 18:5380-5387. [PMID: 35789359 DOI: 10.1039/d2sm00687a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Lanthanide-containing, water-based fluids normally suffer from low photoluminescent (PL) and/or colloidal stability, which greatly hinders their applications. Herein, we report the preparation of PL fluids which contain in situ formed europium complexes in aqueous solution. The strategy first relies on the construction of wormlike micelles by mixing a zwitterionic surfactant (tetradecyldimethylaminoxide, C14DMAO) and a tridentate ligand for a lanthanide cation (2,6-dipicolinic acid, DPA) in water. The addition of the dual-functionalized DPA to an aqueous solution of C14DMAO (100 mol L-1) induced non-monotonic rheological changes, with the expected formation of a pseudogemini surfactant at a DPA-to-C14DMAO molar ratio of approximately 1 : 2. When a third component of EuCl3 is introduced to this system, complexes formed in situ between Eu3+ and DPA, resulting in bright red-emission. Besides DPA, C14DMAO is also involved in the complexation, which squeezes out water molecules and greatly improves the PL stability of the fluid. The synergetic effect among Eu3+, DPA and C14DMAO leads to the high colloidal stability of the fluid, opening the door for a wide range of potential applications. Further tests indicate that this strategy can be easily expanded to other lanthanide cations such as Tb3+.
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Affiliation(s)
- Ning Feng
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 250100, Shandong, China.
| | - Penghui Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 250100, Shandong, China.
- China Research Institute of Daily Chemistry Co., Ltd, Taiyuan 030001, China
| | - Aoxue Xu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 250100, Shandong, China.
| | - Longyue Yu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 250100, Shandong, China.
| | - Hongguang Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, 250100, Shandong, China.
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Tan SH, Chen ZH, Luo H, Liu T, Zhong GQ. Synthesis, crystal structure and photocatalytic properties of two bismuth(III) complexes with different N-containing heterocycles. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115768] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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