Synthesis, characterization, thermal and DNA-binding properties of new zinc complexes with 2-hydroxyphenones

Mrkalić, Emina; Zianna, Ariadni; Psomas, George; Gdaniec, Мaria; Czapik, Agnieszka; Coutouli‐Argyropoulou, Evdoxia; Lalia‐Kantouri, Maria

doi:10.1016/j.jinorgbio.2014.01.019

Cited by 32 publications

(18 citation statements)

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“…58 Zianna et al shows that the K SV value of [Zn(5-NO2-salo) 2 -(phen)], [Zn(5-NO2-salo) 2 (dpamH)], [Zn(5-Cl-salo) 2 (bipy)], [Zn(5-Cl-salo) 2 (dpamH)], [Zn(5-Br-salo) 2 (bipy)], [Zn(5-Br-salo) 2 (phen)], [Zn(5-Br-salo) 2 (dpamH)] towards CT DNA-EB displacement were between(1.45 AE 0.02) Â 10 4 to (5.59 AE 0.18) Â 10 5 M À1 and suggest a strong intercalation binding mode. 59 Giannicchi et al investigate the binding of Zn-salophen complexes to CT DNA and calculate the K SV value 9.4 Â 10 3 M À1 and more recently Mrkalić et al estimate a number of K SV value constant such as [Zn(bpo) 2 (H 2 O) 2 ], [Zn(bpo) 2 (bipy)], [Zn(bpo) 2 (phen)] and [Zn(bpo) 2 (dpamH)] to CT DNA between (7.63 AE 0.26) Â 10 4 and (4.90 AE 0.15) Â 10 5 M À1 suggesting a intercalation mode 60,61.…”

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confidence: 99%

Synthesis and X-ray structure of a new zinc(ii) coordination polymer: interaction with DNA and double stranded RNA and elucidation of the molecular aspects of the binding to bovine serum albumin

Jana

Seth²,

Puschmann

et al. 2014

RSC Adv.

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confidence: 99%

Synthesis and X-ray structure of a new zinc(ii) coordination polymer: interaction with DNA and double stranded RNA and elucidation of the molecular aspects of the binding to bovine serum albumin

Jana

Seth²,

Puschmann

et al. 2014

RSC Adv.

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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].…”

Section: Introductionmentioning

confidence: 90%

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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“…Coordination chemistry of Schiff base ligands is a promising research field in chemistry because of their metal complexes having crucial role in biological systems . Some of the Schiff bases compounds have many biological activities, such as antibacterial, anticancer, antimalarial, antiinflammatory, antifungal and antiviral properties . The antimicrobial activity of transition metal complexes of Schiff base ligands depend on the existence of different substituents in the phenyl rings of aromatic Schiff bases.…”

Section: Introductionmentioning

confidence: 99%

Cobalt (II) Complexes Derived from Azo‐Azomethine Ligands: Synthesis, Characterization, Solvatochromic, Fluorescence, Thermal, Electrochemical and Antimicrobial Properties

Arabahmadi

2019

ChemistrySelect

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Three new cobalt (II) complexes were prepared by the condensation between the ligands, 1-{3-[(1-ethoxy-2-hydroxyethyl-imino)methyl]-4-hydroxyphenylazo}-4-nitro benzene (L 1 ),, with cobalt(II) acetate (molar ratio 1:1) in methanol as the solvent. These prepared cobalt (II) complexes were characterized by infrared, UV/Vis and fluorescence spectroscopy, elemental analysis and magnetic susceptibility measurements. The redox behavior of Schiff base ligands and cobalt (II) complexes determined using cyclic voltammetry technique. The solvatochromic behavior of the Schiff base ligands L 1 -L 3 were recorded in three organic solvents with different polarity. On the basis of the UV/Vis and infrared spectra, the azoazomethin ligands coordinated to the Co (II) ion through phenolic oxygen, alcoholic oxygen, etheric oxygen and imino nitrogen. The prepared ligands and their complexes be served as photoactive materials due to their intraligand (π!π*) fluorescence. The effective magnetic moments of complexes CoL 1 , CoL 2 and CoL 3 are 3.95, 3.9 and 3.98 B.M., respectively that indicate these complexes have tetrahedral configuration. Thermal properties and decomposition behaviors of cobalt (II) complexes are reported by DTA/TG curves. Antibacterial activities of both ligands and complexes were studied.[a] Dr. out in the temperature range from 20 to 800°C. These complexes (CoL 1 -CoL 3 ) have been prepared by the key reaction between the Schiff base ligands (L 1 -L 3 ) and cobalt (II) acetate (1:1 molar ratio) in absolute ethanol (Scheme 1). 2 3 4 5 6 7 8

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Synthesis, characterization, thermal and DNA-binding properties of new zinc complexes with 2-hydroxyphenones

Cited by 32 publications

References 69 publications

Synthesis and X-ray structure of a new zinc(ii) coordination polymer: interaction with DNA and double stranded RNA and elucidation of the molecular aspects of the binding to bovine serum albumin

Synthesis and X-ray structure of a new zinc(ii) coordination polymer: interaction with DNA and double stranded RNA and elucidation of the molecular aspects of the binding to bovine serum albumin

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

Cobalt (II) Complexes Derived from Azo‐Azomethine Ligands: Synthesis, Characterization, Solvatochromic, Fluorescence, Thermal, Electrochemical and Antimicrobial Properties

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