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Crystal structures, DNA-binding studies and antioxidant activities of the Ln(III) complexes with 7-methoxychromone-3-carbaldehyde-isonicotinoyl hydrazone

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Abstract

The neutral mononuclear Ln(III) complexes (Ln = La, Sm) with 7-methoxychrom-one-3-carbaldehyde-isonicotinoyl hydrazone ligand (L) have been synthesized, characterized and investigated their interactions with calf-thymus DNA. The results show that the binding affinity of the La(III) complex is stronger than that of the Sm(III) complex and that of the ligand (L). Furthermore, the antioxidant activities of the ligand (L) and its Ln(III) complexes (Ln = La, Sm) were studied in detail.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China (20475023) and Gansu NSF(0710RJZA012).

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Correspondence to Zheng-Yin Yang.

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Wang, Q., Yang, ZY., Qi, GF. et al. Crystal structures, DNA-binding studies and antioxidant activities of the Ln(III) complexes with 7-methoxychromone-3-carbaldehyde-isonicotinoyl hydrazone. Biometals 22, 927–940 (2009). https://doi.org/10.1007/s10534-009-9245-0

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  • DOI: https://doi.org/10.1007/s10534-009-9245-0

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