Intramolecular hydroxylation of a tetrabenzimidazole-based dicopper complex

Ramírez, Erick; Martínez, Esau; Hernández‐Ortega, Simón; Flores-Álamo, Marcos; Castillo, Iván

doi:10.1016/j.ica.2017.08.039

Cited by 4 publications

(1 citation statement)

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“…In the one of them, we reported preparation and spectral characterization of 1,3bis(1H-benzimidazol-2-yl)-propan-1-one that an asymmetric bis-benzimidazole and its various complexes with Zn(II) salts. 22 There are a few studies on the synthesis and some properties of bis(benzimidazol-1-yl)-methanone 23,24 , bis(1-methyl-1H-benzimidazol-2-yl)methanone 25 and bis(4-(1H-benzimidazol-1-yl)phenyl)methanone. 26 The dicopper complex of bis(4-(1H-benzimidazol-1-yl)phenyl)methanone is also reported.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, antibacterial and antioxidant activity of 1,5-bis(6-chloro-1H-benzimidazol-2-yl)pentan-3-one and its Fe(III), Co(II), Cu(II), Zn(II) and Ru(II) complexes

TAVMAN,

GÜRBÜZ,

AKTAŞ KARAÇELİK

et al. 2024

Rev.Roum.Chim.

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A new bis-benzimidazole ligand, 1,5-bis(6-chloro-1H-benzimidazol-2-yl)pentan-3-one (L, C19H16Cl2N4O), and its complexes with Fe(III), Co(II), Cu(II), Zn(II) and Ru(II) chlorides are synthesized and characterized by elemental analysis, molar conductivity, magnetic moment, TGA, FT-IR, 1H-NMR, fluorescence and UV-visible spectroscopy. The spectral data suggest that the chelating ligand acted as tridentate towards to Cu(II) ion however bidentate in the other complexes. According to the molar conductance data, [Fe(L)2Cl2]Cl•2H2O and [Cu(L)Cl]Cl•2H2O complexes are 1:1 electrolytes whereas [Co(L)Cl2]•2H2O, [Zn(L)(Cl)2(H2O)]•H2O and [Ru(L)(DMSO)(H2O)Cl2] complexes are non-ionic. In addition, antibacterial and antioxidant activity of the compounds were tested. The Ru(II) and Co(II) complexes showed moderate activity against to all tested bacteria whereas the ligand itself had no activity. According to the 1,1-diphenyl-2-picrylhydrazyl radical (DPPH•) scavenging results, the Ru(II) complex of L had quite significant radical scavenging activity almost the same as that of 3,5-di-tert-4-butylhydroxytoluene (BHT), a commercial standard.

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Section: Introductionmentioning

confidence: 99%