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| Three-dimensional homochiral Eu(Ⅲ) coordination polymer and its amino acid configuration recognition |
| Author Name | Affiliation | E-mail | | WANG Ruiying | School of Chemical Engineering, Henan Technical Institute of Applied Technology, Zhengzhou 450042, China | | | WANG Hui | School of Chemical Engineering, Henan Technical Institute of Applied Technology, Zhengzhou 450042, China | | | CHAI Fenglan | School of Chemical Engineering, Henan Technical Institute of Applied Technology, Zhengzhou 450042, China | 965996899@qq.com | | ZUO Zhinan | College of Chemistry, Zhengzhou University, Zhengzhou 450001, China | | | WU Benlai | College of Chemistry, Zhengzhou University, Zhengzhou 450001, China | wbl@zzu.edu.cn |
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| Abstract: Solvothermal reaction of a designed enantiomerically pure chiral ligand S-4'-[(2-carboxy-5-oxopyrrolidin1-yl)methyl]-(1,1'-biphenyl)-3,5-dicarboxylic acid (H3L) with Eu(Ⅲ) salt produced a new homochiral coordination polymer {[Eu(L)]·0.5CH3CN}n (1). Single crystal X-ray diffraction analysis has displayed that 1 belongs to the tetragonal I4 1 chiral space group. In 1, anionic ligands L3- acted as μ7-bridges and connected Eu(Ⅲ) ions to form a 3D helical structure with 7-connected topology. Ligand H3L not only transfers chirality to the resulting metal-organic framework but also induces helical chirality generation. Complex 1 exhibited excellent ligandsensitized emission and thermal stability. Using complex 1 as a fluorescent probe, its configuration recognition performance on common amino acids was investigated. Our results showed that the different enantiomers of aspartic acid, alanine, lysine, leucine, tyrosine, and valine had various impacts on the fluorescence intensity of 1, indicating that 1 can detect their configurations of the six amino acids mentioned above. |
| Keywords: homochiral metal-organic framework Eu(Ⅲ) complex crystal structure fluorescence property enantiomer recognition |
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| WANG Ruiying,WANG Hui,CHAI Fenglan,ZUO Zhinan,WU Benlai.Three-dimensional homochiral Eu(Ⅲ) coordination polymer and its amino acid configuration recognition[J].Chinese Journal of Inorganic Chemistry,2025,41(5):877-884. |
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