Synthesis, spectral and electrochemical studies of Cu(II) and Ni(II) complexes with new N2O2 ligands: A new precursor capable of depositing copper nanoparticles using thermal reduction

Habibi, Mohammad Hossein; Mokhtari, Reza; Mikhak, Maryam; Amirnasr, Mehdi; Amiri, Ahmad

doi:10.1016/j.saa.2011.05.010

Cited by 19 publications

(4 citation statements)

References 23 publications

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“…process exists. The Cu(II) complex has exposed the observed reduction peak at pc = −0.085 V which indicates the formation of Cu(II)/Cu(I) and corresponding oxidation peak at pa = 0.025 V versus Ag/Ag + indicates C(I)/Cu(II) couple [37][38][39][40]. The peak separation (ΔE ) of this couple is found to be 0.110 V which is in accordance with the reversibility of Journal of Chemistry 5 (1) S (2) 2.1241 (15) O (1) Ni (1) S (2) 174.84(9) Ni (1) S (1) 2.1254 (16) O (2) Ni (1) S (1) 174.78(8) S (2) C (11) 1.716 (4) O (1) Ni (1) S (1) 95.26(9) N (3) C (14) 1.305 (4) S (2) Ni (1) S (1) 85.26(6) N (3) C (11) 1.324 (4) C (4) O (1) Ni (1) 131.4(2) O (2) C (14) 1.264 (4) C (14) O (2) Ni ( (14) C (15)…”

Section: Synthesis N-(dimethylcarbamothioyl)-4-fluorobenzamidementioning

confidence: 98%

Crystal Structure and Cyclic Voltammetric Studies on the Metal Complexes of N-(Dimethylcarbamothioyl)-4-fluorobenzamide

Binzet

Turunç

Flörke

et al. 2018

Journal of Chemistry

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We synthesized N-(dimethylcarbamothioyl)-4-fluorobenzamide compound and its copper(II) and nickel(II) complexes. The structures of compounds have been characterized by elemental analysis and spectral data (IR, 1 H NMR). Furthermore, crystal and molecular structure of the synthesized complexes have been identified by using single crystal X-ray diffraction data. In the complexes formation the metal atom was coordinated via two sulfur atoms and two oxygen atoms. The single crystal structure of copper(II) and nickel(II) complex exhibits slightly distorted square planar geometry. The oxygen atoms are in a cis configuration. It appeared that the lengths of the thiocarbonyl and carbonyl bonds are longer than the average for C=S and C=O; meanwhile the C-N bonds in the complex ring appeared to be shorter than the average for C-N single bonds. These data show that C-O, C-S, and C-N bond lengths of the complexes suggest considerable electronic delocalization in the chelate ring. All bond lengths and angles obtained as a result of the analyses are found to be within experimental error limits. The obtained crystal analysis data shows that the structure of complex compounds is compatible with similar compounds in literature. Electrochemical behavior of complexes has been investigated by cyclic voltammetry technique in aprotic media. From the cyclic voltammetric investigation, both of the complexes have demonstrated electroactive properties.

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Section: Synthesis N-(dimethylcarbamothioyl)-4-fluorobenzamidementioning

confidence: 98%

Crystal Structure and Cyclic Voltammetric Studies on the Metal Complexes of N-(Dimethylcarbamothioyl)-4-fluorobenzamide

Binzet

Turunç

Flörke

et al. 2018

Journal of Chemistry

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“…The potentials were quoted at a scan rate of 0.1 Vs −1 and against an internal ferrocene‐ferrocenium standard. The redox properties of Cu (II) complex at the different scan rate indicates an irreversible reduction of Cu (II) /Cu (I) in the range of −0.89 V and anodic voltammogram potentials at −0.62 and 0.58 V, which have been assigned to the oxidation of the Cu (I) /Cu (II) centers in the complex [ 54 ]…”

Section: Resultsmentioning

confidence: 99%

“…Figure 2 shows the pair of complexes with highest interaction energy. (I) in the range of À0.89 V and anodic voltammogram potentials at À0.62 and 0.58 V, which have been assigned to the oxidation of the Cu (I) /Cu (II) centers in the complex [54]…”

Section: Description Of the Crystal Structuresmentioning

confidence: 94%

Unprecedented formation of a μ‐oxobridged dimeric copper (II) complex: Evaluation of structural, spectroscopic, and electronic properties by using theoretical studies and investigations biological activity studies of new Schiff bases derived from pyrazolone

Parvarinezhad

Salehi

Kubicki

et al. 2021

Applied Organom Chemis

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Novel Schiff base Cu (II) complex was synthesized in the present work through condensation of salicylaldehyde with 4‐aminoantipyrine derivative and characterized by spectral and analytical techniques. Crystal structure of the Cu (II) complex was determined by single‐crystal X‐ray diffraction technique. The structure of the complex is quite unexpected and unprecedented. The observation can be due to the in situ oxidation of the methyl groups of the 4‐aminoantipyrine of the Schiff base ligand to CH2OH. Cu2L2 is a two‐centered Ci‐symmetry complex that is bridged by two oxygen atoms from two ligand molecules, with four‐coordinated Cu (II) ion's in a very regular square‐planar fashion. The electrochemical properties of complex in DMSO displayed the electronic effects on the groups on redox potential. Various computational studies such as DFT (density functional theory), MEPs (molecular electrostatic potential), and HS (Hirshfeld surface analysis) were performed to understand the properties of different interactions of the compounds. The DFT computations, geometry optimization of the ligand, and Cu (II) complex (1) were optimized using the B3LYP method with (6‐311G) basis set. Also, HS analysis is used for decoding intermolecular interactions in the crystal system and contribution of component units for the construction of the 3D architecture. Anticancer effects of the ligand and complex in MTT assay against cancer cell lines SW480 were studied. The antioxidant activity results show that the ligand and complex have antioxidant and anticancer activity. Molecular docking study was also carried out for the complex to find its binding affinity to protein B‐cell lymphorna (BCL‐2, PDB ID: 4LXD).

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“…The electrochemical behavior of complexes 1 and 2 have been studied in DMF containing 0.05 mol L −1 tetrabutylammonium perchlorate (TBAP) over the potential range from −2.8 to 1.0 V vs . Ag/AgNO 3 by cyclic voltammetry (CV) using a three‐electrode system with the scanning rate was 100 mV s −1 . All solutions were nitrogen‐purged prior to experiment.…”

Section: Resultsmentioning

confidence: 99%

X‐ray structures, spectroscopic, electrochemical, thermal, antibacterial, and DFT studies of two nickel(II) and cobalt(III) complexes constructed from a new quinazoline‐type ligand

Chai

Zhang

et al. 2018

Applied Organom Chemis

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Two two‐dimensional supramolecular Nickel(II) and Cobalt(III) complexes, [Ni(L2)2]·2CH3OH (1) and [2Co(L2)2] (2) (HL2 = 1‐(2‐{[(E)‐3‐bromo‐5‐chloro‐2‐hydroxybenzylidene]amino}phenyl)ethanone oxime), were synthesized via complexation of salts acetate with HL1 (2‐(3‐bromo‐5‐chloro‐2‐hydroxyphenyl)‐4‐methyl‐1,2‐dihydroquinazoline 3‐oxide, H is the deprotonatable hydrogen). During the reaction, the C–N bond in HL1 is converted into the C=N–OH group in HL2. The spectroscopic data of both complexes were compared with the ligand HL1. HL1 and both complexes were determined by single‐crystal X‐ray crystallography. The differently geometric features of the obtained complexes 1 and 2 are observed. In the crystal structure, 1 and 2 form an infinite 1‐D chain‐like and 2‐D supramolecular frameworks. EPR spectroscopy of 2 was investigated. Moreover, electrochemical properties and antimicrobial activities of both complexes were also studied. In addition, the calculated HOMO and LUMO energies show the character of HL1, complexes 1 and 2. The electronic transitions and spectral features of HL1 and both complexes were discussed by TD‐DFT calculations.

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Synthesis, spectral and electrochemical studies of Cu(II) and Ni(II) complexes with new N2O2 ligands: A new precursor capable of depositing copper nanoparticles using thermal reduction

Cited by 19 publications

References 23 publications

Crystal Structure and Cyclic Voltammetric Studies on the Metal Complexes of N-(Dimethylcarbamothioyl)-4-fluorobenzamide

Crystal Structure and Cyclic Voltammetric Studies on the Metal Complexes of N-(Dimethylcarbamothioyl)-4-fluorobenzamide

Unprecedented formation of a μ‐oxobridged dimeric copper (II) complex: Evaluation of structural, spectroscopic, and electronic properties by using theoretical studies and investigations biological activity studies of new Schiff bases derived from pyrazolone

X‐ray structures, spectroscopic, electrochemical, thermal, antibacterial, and DFT studies of two nickel(II) and cobalt(III) complexes constructed from a new quinazoline‐type ligand

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