Abstract
Two novel 2,5-diketopiperazine-N,N′-diacetic acid-based (H2DPDA) metal complexes [Mn(DPDA)0.5(phen)2H2O]2Cl2·2H2O (1) and {[Cu(DPDA)(phen)H2O]·4H2O}n(2)(H2DPDA = 2,5-diketopiperazine-N,N′-diacetic acid, phen = phenanthroline) have been hydrothermally synthesized, and the relationship between magnetism, fluorescence and structure was investigated. Crystal structure analysis shows that (1) 1 and 2 belong to the triclinic crystal system, the p-1 space group; (2) 2 shows a 1-dimensional zigzag chain structure. Thermogravimetric analysis shows that the complex 1 has better stability than 2. Magnetic measurements show that 1 exhibits antiferromagnetism but 2 exhibits ferromagnetism. Fluorescence test shows that 1 and 2 have luminescent properties and emits blue fluorescence.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (21763015) and Kunming University of Science and Technology Test Fund (2022M20212111110, 2023M20222111098)
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Wang M-J and Ma Y-P took part in ligand and metal complex synthesis, single-crystal XRD studies, writing characterization part and contribution to original draft writing. All authors read and approved the final manuscript.
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Wang, M., Ma, Y., Wu, C. et al. Synthesis, crystal structures, magnetism and fluorescence of manganese(II) and copper(II) complexes based on 2,5-diketopiperazine-N,N′-diacetic acid ligands. Transit Met Chem (2024). https://doi.org/10.1007/s11243-024-00592-9
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DOI: https://doi.org/10.1007/s11243-024-00592-9