首页|Manganese(II) complexes of substituted salicylaldehydes and α-diimines: Synthesis, characterization and biological activity

Manganese(II) complexes of substituted salicylaldehydes and α-diimines: Synthesis, characterization and biological activity

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? 2021 Elsevier Inc.The interaction of Mn+2 with substituted salicylaldehydes (X-saloH) led to the formation of five manganese(II) complexes formulated as [Μn(X-salo)2(MeOH)2]. When the reactions took place in the presence of an α-diimine such as 2,2′-bipyridine, 1,10-phenanthroline or 2,2′-bipyridylamine, five manganese(II) complexes of the formula [Mn(X-salo)2(α-diimine)] were isolated. The characterization of the complexes was accomplished by various spectroscopic techniques and single-crystal X-ray crystallography. The antioxidant activity of the compounds was evaluated via the scavenging of 1,1-diphenyl-picrylhydrazyl, 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) and hydroxyl free radicals. The antibacterial activity of the complexes was tested in vitro against Staphylococcus aureus and Xanthomonas campestris bacterial strains and was found moderate. Diverse techniques were employed to examine the interaction of the complexes with calf-thymus DNA which showed intercalation as the most possible interaction mode. The affinity of the complexes for bovine serum albumin was investigated by fluorescence emission spectroscopy and the binding constants were determined.

Antimicrobial activityInteraction with biomoleculesManganese(II) complexesRadical scavengingStructureSubstituted salicylaldehydes

Psomas G.、Konstantopoulou S.、Kalogiannis S.、Papadopoulos A.N.、Ntanatsidis S.、Perontsis S.、Hatzidimitriou A.G.

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Laboratory of Inorganic Chemistry Department of Chemistry Aristotle University of Thessaloniki

Department of Nutritional Sciences and Dietetics International Hellenic University

2022

Journal of Inorganic Biochemistry

Journal of Inorganic Biochemistry

ISTP
ISSN:0162-0134
年,卷(期):2022.227
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