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Sanzhenakova EA, Smirnova KS, Pozdnyakov IP, Berezin AS, Potkin VI, Lider EV. Structural diversity of photoluminescent lanthanide(III) coordination compounds with an isothiazole derivative. Dalton Trans 2025. [PMID: 40261257 DOI: 10.1039/d5dt00127g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/24/2025]
Abstract
Two different series of europium(III), terbium(III) and gadolinium(III) complexes with 4,5-dichloroisothiazole-3-carboxylic acid (HL) were obtained. According to the data obtained from various analysis methods, the first type of coordination compounds with the general formula of [Ln(H2O)L2(OAc)]n was polymer chains, and the second type with the general formula of [Ln6(H2O)10L18] was hexanuclear complexes, with central atoms arranged similar to octahedrons. DFT calculations were used to determine the location of the electron density in HOMO/LUMO and the value of the triplet state energy of the ligand molecule. The highest luminescence quantum yield was observed in the case of the hexanuclear terbium(III) complex (24%) with a millisecond luminescence lifetime, while the hexanuclear europium(III) compound (96%) exhibited the highest value of color purity.
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Affiliation(s)
- E A Sanzhenakova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Ave., Novosibirsk, 630090, Russia.
| | - K S Smirnova
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Ave., Novosibirsk, 630090, Russia.
| | - I P Pozdnyakov
- Voevodsky Institute of Chemical Kinetics and Combustion, SB RAS, Institutskaya 3, 630090, Novosibirsk, Russia
| | - A S Berezin
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Ave., Novosibirsk, 630090, Russia.
| | - V I Potkin
- Institute of Physical Organic Chemistry of the National Academy of Sciences of Belarus, Minsk, Belarus
| | - E V Lider
- Nikolaev Institute of Inorganic Chemistry SB RAS, 3, Acad. Lavrentiev Ave., Novosibirsk, 630090, Russia.
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Wang X, He S, Chen J, Wei J, Chen C, Shi W, Wu D, Fu L, Yang T. A highly efficient lanthanide coordination polymer luminescent material for the multi-task detection of environmental pollutants. Dalton Trans 2023; 53:276-284. [PMID: 38044870 DOI: 10.1039/d3dt03218c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
It is challenging to explore novel-structure lanthanide coordination polymers (Ln-CPs) for sensing environmental pollutants. Herein, we designed and synthesized an organic bridging linker 3-(carboxymethoxy)-1-(carboxymethyl) pyrazole-4-carboxylic acid (H3ccpc), and then successfully prepared and characterized a novel Ln-CP, namely [Tb2(ccpc)2(H2O)6]·1.5H2O (ccpcTb). Structural analysis indicates that ccpcTb exhibits a two-dimensional structure, in which Tb ions are in an eight-coordinated environment. The photoluminescence performance of ccpcTb was discussed in detail. The ccpcTb displays bright green luminescence and behaves as a multi-responsive luminescent sensor toward Fe3+ ions, Cr2O72- ions and 2,4,6-trinitrophenol with high selectivity and low detection limits. Furthermore, the possible luminescence sensing mechanisms have been addressed in detail. The luminescence quenching mechanism of sensing Fe3+ and Cr2O72- is attributed to the energy competitive absorption, while that of sensing TNP is due to the synergistic effect of energy competitive absorption and photo-induced electron transfer.
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Affiliation(s)
- Xin Wang
- School of Chemistry & Chemical Engineering, Jiangsu Laboratory of Precious Metals Processing Technology and Application, Jiangsu University of Technology, Changzhou 213001, P. R. China.
| | - Shunsheng He
- School of Chemistry & Chemical Engineering, Jiangsu Laboratory of Precious Metals Processing Technology and Application, Jiangsu University of Technology, Changzhou 213001, P. R. China.
| | - Jun Chen
- School of Chemistry & Chemical Engineering, Jiangsu Laboratory of Precious Metals Processing Technology and Application, Jiangsu University of Technology, Changzhou 213001, P. R. China.
| | - Jiamin Wei
- School of Chemistry & Chemical Engineering, Jiangsu Laboratory of Precious Metals Processing Technology and Application, Jiangsu University of Technology, Changzhou 213001, P. R. China.
| | - Chaoyue Chen
- School of Chemistry & Chemical Engineering, Jiangsu Laboratory of Precious Metals Processing Technology and Application, Jiangsu University of Technology, Changzhou 213001, P. R. China.
| | - Wenyan Shi
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China
| | - Dayu Wu
- School of Petrochemical Engineering, Changzhou University, Changzhou 213001, P. R. China.
| | - Lianshe Fu
- Department of Physics, Department of Chemistry and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tinghai Yang
- School of Chemistry & Chemical Engineering, Jiangsu Laboratory of Precious Metals Processing Technology and Application, Jiangsu University of Technology, Changzhou 213001, P. R. China.
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