Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-Phenanthroline

Three hexacoordinated octahedral nickel(II) complexes, [Ni(sal-L-phe)(phen)(CH3OH)]⋅CH3OH (1), [Ni(naph-L-phe)(phen)(CH3OH)] (2), and [Ni(o-van-L-phe)(phen)(CH3OH)]⋅5CH3OH (3) (sal-L-phe = a Schiff base derived from salicylaldehyde and L-phenylalanine, naph-L-phe = a Schiff base derived from 2-hydro...

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Main Authors: Peiran Zhao, Shanshan Zhai, Jianfang Dong, Lei Gao, Xinru Liu, Lei Wang, Jinming Kong, Lianzhi Li
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Bioinorganic Chemistry and Applications
Online Access:http://dx.doi.org/10.1155/2018/8478152
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author Peiran Zhao
Shanshan Zhai
Jianfang Dong
Lei Gao
Xinru Liu
Lei Wang
Jinming Kong
Lianzhi Li
author_facet Peiran Zhao
Shanshan Zhai
Jianfang Dong
Lei Gao
Xinru Liu
Lei Wang
Jinming Kong
Lianzhi Li
author_sort Peiran Zhao
collection DOAJ
description Three hexacoordinated octahedral nickel(II) complexes, [Ni(sal-L-phe)(phen)(CH3OH)]⋅CH3OH (1), [Ni(naph-L-phe)(phen)(CH3OH)] (2), and [Ni(o-van-L-phe)(phen)(CH3OH)]⋅5CH3OH (3) (sal-L-phe = a Schiff base derived from salicylaldehyde and L-phenylalanine, naph-L-phe = a Schiff base derived from 2-hydroxy-1-naphthaldehyde and L-phenylalanine, o-van-L-phe = a Schiff base derived from o-vanillin and L-phenylalanine, and phen = 1,10-phenanthroline), have been synthesized and characterized by elemental analysis, IR spectra, and single-crystal X-ray diffraction. The interactions of these complexes with CT-DNA were studied by UV-Vis absorption spectroscopy, fluorescence spectroscopy, circular dichroism spectroscopy, and viscosity measurements. The binding constant (Kb) values of 1.82 × 104 M−1 for 1, 1.96 × 104 M−1 for 2, and 2.02 × 104 M−1 for 3 suggest that each of these complexes could bind with DNA in a moderate intercalative mode. Complex 3 exhibited a stronger interaction with CT-DNA than complexes 1 and 2. In addition, the superoxide scavenging activity of these complexes was investigated by the nitrotetrazolium blue chloride (NBT) light reduction method, and the results showed that they exhibited a significant superoxide scavenging activity with the IC50 values of 4.4 × 10−5 M for complex 1, 5.6 × 10−5 M for complex 2, and 3.1 × 10−5 M for complex 3, respectively.
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series Bioinorganic Chemistry and Applications
spelling doaj-art-72c20bee696f4b4d8e24932144ae59b02025-08-20T02:06:26ZengWileyBioinorganic Chemistry and Applications1565-36331687-479X2018-01-01201810.1155/2018/84781528478152Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-PhenanthrolinePeiran Zhao0Shanshan Zhai1Jianfang Dong2Lei Gao3Xinru Liu4Lei Wang5Jinming Kong6Lianzhi Li7School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaZhong Yuan Academy of Biological Medicine, Liaocheng People’s Hospital, Liaocheng 252000, ChinaSchool of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Environmental and Biological Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei, Nanjing 210094, ChinaSchool of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, ChinaThree hexacoordinated octahedral nickel(II) complexes, [Ni(sal-L-phe)(phen)(CH3OH)]⋅CH3OH (1), [Ni(naph-L-phe)(phen)(CH3OH)] (2), and [Ni(o-van-L-phe)(phen)(CH3OH)]⋅5CH3OH (3) (sal-L-phe = a Schiff base derived from salicylaldehyde and L-phenylalanine, naph-L-phe = a Schiff base derived from 2-hydroxy-1-naphthaldehyde and L-phenylalanine, o-van-L-phe = a Schiff base derived from o-vanillin and L-phenylalanine, and phen = 1,10-phenanthroline), have been synthesized and characterized by elemental analysis, IR spectra, and single-crystal X-ray diffraction. The interactions of these complexes with CT-DNA were studied by UV-Vis absorption spectroscopy, fluorescence spectroscopy, circular dichroism spectroscopy, and viscosity measurements. The binding constant (Kb) values of 1.82 × 104 M−1 for 1, 1.96 × 104 M−1 for 2, and 2.02 × 104 M−1 for 3 suggest that each of these complexes could bind with DNA in a moderate intercalative mode. Complex 3 exhibited a stronger interaction with CT-DNA than complexes 1 and 2. In addition, the superoxide scavenging activity of these complexes was investigated by the nitrotetrazolium blue chloride (NBT) light reduction method, and the results showed that they exhibited a significant superoxide scavenging activity with the IC50 values of 4.4 × 10−5 M for complex 1, 5.6 × 10−5 M for complex 2, and 3.1 × 10−5 M for complex 3, respectively.http://dx.doi.org/10.1155/2018/8478152
spellingShingle Peiran Zhao
Shanshan Zhai
Jianfang Dong
Lei Gao
Xinru Liu
Lei Wang
Jinming Kong
Lianzhi Li
Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-Phenanthroline
Bioinorganic Chemistry and Applications
title Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-Phenanthroline
title_full Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-Phenanthroline
title_fullStr Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-Phenanthroline
title_full_unstemmed Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-Phenanthroline
title_short Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-Phenanthroline
title_sort synthesis structure dna interaction and sod activity of three nickel ii complexes containing l phenylalanine schiff base and 1 10 phenanthroline
url http://dx.doi.org/10.1155/2018/8478152
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