Synthesis and Structural Characterization of Iron (III) Complexes with 2‐Hydroxyphenones

Lalia‐Kantouri, Maria; Dimitriadis, Theodor; Papadopoulos, Christos D.; Gdaniec, Мaria; Czapik, Agnieszka; Hatzidimitriou, Antonios G.

doi:10.1002/zaac.200900016

Cited by 24 publications

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“…We have initiated in our laboratory the synthesis and characterization of transition metal complexes with carbonyl compounds derived from salicylaldehyde and benzophenone ligands [28][29][30][31][32][33][34]. Our interest is based on the synthesis of metal complexes with substituted salicylaldehydes and their interaction with DNA.…”

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confidence: 99%

Cadmium(II) complexes of 5-nitro-salicylaldehyde and α-diimines: synthesis, structure and interaction with calf-thymus DNA

Zianna

Šumar-Ristović

Psomas

et al. 2015

Journal of Coordination Chemistry

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complexes of 5-nitro-salicylaldehyde and α-diimines: Synthesis, structure and interaction with calf-thymus DNA, Journal of Coordination Chemistry, Five Cd(II) complexes with the anion of 5-NO 2 -salicylaldehydeH (5-NO 2 -saloH) in the absence or presence of the α-diimine 1,10-phenanthroline (phen), 2,2'-dipyridylamine (dpamH), 2,2'-dipyridine (bipy) or 2,9-dimethyl-1,10-phenanthroline (neoc) were synthesized and characterized as (2), [Cd(5-NO 2 -salo) 2 (dpamΗ)] (3), [Cd 3 (5-NO 2 -salo) 6 (bipy) 2 ] (4) and [Cd(5-NO 2salo)(neoc)(NO 3 )] 2 (5). Based on spectroscopic results (IR, UV, NMR), elemental analysis and conductivity measurements an octahedral geometry around cadmium metal ion is suggested, with the 5-NO 2 -salicylaldehyde ligand having different coordination modes. The structures determined by X-ray crystallography verified neutral mononuclear 1-3 and trinuclear 4.Simultaneous TG/DTG-DTA technique was used to analyze the thermal behavior of 1, 2 and 3.The complexes bind tightly to calf-thymus DNA mainly by intercalation, as concluded by DNAviscosity measurements and exhibit significant displacement of EB from the EB-DNA complex.

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confidence: 99%

Cadmium(II) complexes of 5-nitro-salicylaldehyde and α-diimines: synthesis, structure and interaction with calf-thymus DNA

Zianna

Šumar-Ristović

Psomas

et al. 2015

Journal of Coordination Chemistry

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“…The β-diketonate ligands used in above study contain two oxygen donor atoms that co-ordinate in a bidentate manner with many transition metals such as Fe [3], Cr [4] and Mn [5], to form octahedral metal tris(β-diketonate) complexes. Similarly, the 2-hydroxybenzophenone ligands in this study, which also contain two oxygen donor atoms, are also known to have strong coordinating properties, also binding in a bidentate manner with transition metals such as Fe [6], Co [7,8], Zn [9] and Re [10], to form octahedral metal complexes containing a 2-hydroxybenzophenone ligand. We have recently reported on the redox properties of a series of 2-hydroxybenzophenone (HBP) ligands, showing that the experimental reduction potential of the unsubstituted hydroxybenzophenone ligand has a higher reduction potential compared to HBP ligands containing an electron donating substituent, such as 2hydroxy-4-methoxybenzophenone (HBP-OMe) or 2hydroxy-4-(octyloxy)benzophenone (HBP-Oct) [11].…”

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Cyclic Voltammetric and DFT Analysis of the Reduction of Manganese(III) Complexes with 2‐Hydroxybenzophenones

Adeniyi

Conradie

2020

Electroanalysis

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A comprehensive understanding of the redox behaviour of manganese complexes is significant for its use in different industrial applications, including as redox mediator in dye sensitized solar cells. This study presents the experimental reduction potential of derivatives of manganese(III) complexes coordinated to 2-hydroxybenzophenones, showing that the first observed experimental reduction potential peak is located on the manganese atom, followed by a further ligand-based reduction. A density functional theory study shows that Jahn-Teller distortion has a larger impact on the theoretically determined reduction potential and molecular electrostatic potential at the manganese atom, than the impact of the isomeric forms (fac and mer) on the theoretically predicted reduction potential. Keywords: 2-Hydroxybenzophenone • manganese(III) • reduction • DFT Highlights * First reduction of manganese tris(2-hydroxybenzophenone) complexes is Mn based * Second reduction of manganese tris(2-hydroxybenzophenone) complexes is ligand-based * Influence of Jahn-Teller effect on the theoretically determined reduction potential * Influence fac and mer isomers on the theoretically determined reduction potential * Experimental and theoretical Mn(III/II) reduction of manganese tris(2-hydroxybenzophenone) [a] A

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“…The last decade we have initiated in our laboratory the synthesis and characterization of transition metal complexes with carbonyl compounds derived from salicylaldehyde and 2-OH-phenone ligands. 16,[30][31][32][33][34][35] Especially, we have been focused on the synthesis of metal complexes with substituted salicylaldehydes and their interaction with DNA. Previous studies showed that zinc(II) complexes with salicylaldehydes or 2-hydroxybenzophenones presented interesting results concerning their binding to calf-thymus DNA, 33,34 while Co(II) analogues in the presence of the nitrogen-donor ligand 2,2 0 -dipyridylamine have showed anticancer activity.…”

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confidence: 99%

Copper(ii) complexes of salicylaldehydes and 2-hydroxyphenones: synthesis, structure, thermal decomposition study and interaction with calf-thymus DNA and albumins

et al. 2015

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Synthesis and Structural Characterization of Iron (III) Complexes with 2‐Hydroxyphenones

Cited by 24 publications

References 25 publications

Cadmium(II) complexes of 5-nitro-salicylaldehyde and α-diimines: synthesis, structure and interaction with calf-thymus DNA

Cadmium(II) complexes of 5-nitro-salicylaldehyde and α-diimines: synthesis, structure and interaction with calf-thymus DNA

Cyclic Voltammetric and DFT Analysis of the Reduction of Manganese(III) Complexes with 2‐Hydroxybenzophenones

Copper(ii) complexes of salicylaldehydes and 2-hydroxyphenones: synthesis, structure, thermal decomposition study and interaction with calf-thymus DNA and albumins

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