Syntheses, crystal structures, photo-physical properties, antioxidant and antifungal activities of Mg(II) 4,4′-bipyridine and Mg(II) pyrazine complexes of the 5,10,15,20 tetrakis(4–bromophenyl)porphyrin

N. Amiri (1) , F. Ben Taheur (1) , S. Chevreux (2) , C.M. Rodrigues (2) , V. Dorcet (3) , Gilles Lemercier (2) , H. Nasri (1)

1 UM - Université de Monastir - University of Monastir
2 ICMR - Institut de Chimie Moléculaire de Reims - UMR 7312
3 ISCR - Institut des Sciences Chimiques de Rennes

This study concerns the synthesis of 5,10,15,20-tetrakis(4-bromophenyl)porphyrin (H2TBrPP)-based magnesium(II) complexes involving 4,4′-bipyridine (4,4′-bpy) and pyrazine (pyz) ligand, for [Mg(TBrPP)(4,4′-bpy)] (1) and [Mg(TBrPP)(pyz)2] (2), respectively. New complexes 1 and 2 were characterized by single crystal X-ray diffraction, elemental analysis, infrared and nuclear magnetic resonance spectroscopies. The photo-physical properties were investigated by UV–visible absorption and emission spectroscopies. These new magnesium(II) complexes exhibit promising antifungal and antioxidant activities.

Mots clés: 4′-bipyridine ligand; Antioxidant and antifungal activities; Photo-physical properties; Porphyrin-based Mg(II) complexes; Pyrazine ligand; X-Ray structures

Domaines: Chimie; Chimie inorganique

N. Amiri, F. Ben Taheur, S. Chevreux, C.M. Rodrigues, V. Dorcet, et al.. Syntheses, crystal structures, photo-physical properties, antioxidant and antifungal activities of Mg(II) 4,4′-bipyridine and Mg(II) pyrazine complexes of the 5,10,15,20 tetrakis(4–bromophenyl)porphyrin. Inorganica Chimica Acta, 2021, 525, pp.120466. ⟨10.1016/j.ica.2021.120466⟩. ⟨hal-03284253⟩