A dual approach to study the key features of nickel (II) and copper (II) coordination complexes: Synthesis, crystal structure, optical and nonlinear properties

Mohan, Bharti; Jana, Achintya; Das, Neeladri; Bharti, Sulakshna; Choudhary, Mukesh; Muhammad, Shabbir; Kumar, Santosh; Al‐Sehemi, Abdullah G.; Algarni, H.

doi:10.1016/j.ica.2018.09.037

Cited by 39 publications

(19 citation statements)

References 101 publications

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“…The methyl groups bounded to nitrogen and carbon gave the signals at 3.10 and 2.48 ppm, respectively. In the 13 C NMR spectrum, observation of 18 peaks confirmed the proposed structure. The carbonyl peak appeared at 160.9 ppm.…”

Section: Synthesis and Characterizationsupporting

confidence: 61%

“…[ 9 ] Due to the electron‐donating ability, SBs could be used in the field of coordination chemistry extensively. [ 10 ] SBs are among the most chiefly used organic compounds, revealing a wide range of applications, such as electroluminescent effects, [ 11 ] fluorescence properties, [ 12 ] nonlinear optical properties, [ 13 ] chemosensory. [ 14 ] In addition, SBs and their metal complexes have showed a large variety of biological activity in recent research, including anticancer, antioxidant, [ 15 ] antibacterial, antibiofilm, anti‐inflammatory, hemocompatibility, cytotoxic, [ 16 ] pesticidal, nematicidal activities.…”

Section: Introductionmentioning

confidence: 99%

“…H NMR (400 MHz, DMSO-d6) δ: 11.60 (s, 1H, NH), 9.78 (s, 1H), 8.45 (d, J = 8.0 Hz, 1H), 7.86 (d, J = 4.0 Hz, 1H), 7.52 (t, J = 8.0 Hz, 2H), 7.46 (d, J = 8.0 Hz, 1H), 7.41 (d, J = 8.0 Hz, 2H), 7.34 (t, J = 8.0 Hz, 1H), 7.20 (m, 2H), 3.10 (s, 3H), 2.48 (s, 3H) (Figure S1) 13. C NMR (100 MHz, DMSO-d6) δ: 160.9, 152.9, 151.4, 137.8, 135.5, 132.0, 129.5, 126.8, 125.2, 124.4, 123.0, 122.6, 121.1, 119.0, 116.4, 112.3, 36.5, 10.5 (Figure S3).…”

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confidence: 99%

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Synthesis, characterization, and antioxidant activity of heterocyclic Schiff bases

Kızılkaya

Dağ

Aral

et al. 2020

J Chinese Chemical Soc

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Schiff base derivatives have gained great importance due to revealing a great number of biological properties. Schiff bases were synthesized by treatment of 4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one (1) with various aldehydes in methanol at reflux. In addition, diamine was reacted with an aldehyde to yield the corresponding Schiff bases. The structures of synthesized Schiff bases were elucidated by spectroscopic methods such as microanalysis, 1 H-NMR, 13 C-NMR, and FTIR. Antioxidant activities of synthesized Schiff bases were carried out using different antioxidant assays such as 1,1-diphenyl-2-picryl-hydrazyl free radical (DPPH •) scavenging, 2,2 0-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical scavenging, and reducing power activity. (E)-4-((1H-indol-3-yl)methyleneamino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one (3), (E)-1,5-dimethyl-4-((2-methyl-1H-indol-3-yl) methyleneamino)-2-phenyl-1H-pyrazol-3(2H)-one (5), (E)-1,5-dimethyl-2-phenyl-4-(thiophen-2-ylmethyleneamino)-1H-pyrazol-3(2H)-one (7), (E)-1,5-dimethyl-2-phenyl-4-(quinolin-2-ylmethyleneamino)-1H-pyrazol-3(2H)-one (9), (1S,2S, N1,N2)-N1,N2-bis((1H-indol-3-yl)methylene)cyclohexane-1,2-diamine (11), and (1S,2S,N1,N2)-N1,N2-bis((2-methyl-1H-indol-3-yl)methylene)cyclohexane-1,2-diamine (12) were synthesized in high yields. Compound 5 displayed a good ABTS •+ activity. Compound 3 revealed the outstanding activity in all assays. Compound 7 has the best-reducing power ability in comparison to other synthesized compounds. Although compounds 5, 11, 12 are new, compounds 3, 7, 9 are known. Due to revealing a good antioxidant activity, the synthesized compounds (3, 5, 7) have the potential to be used as synthetic antioxidant agents.

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Section: Synthesis and Characterizationsupporting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Synthesis, characterization, and antioxidant activity of heterocyclic Schiff bases

Kızılkaya

Dağ

Aral

et al. 2020

J Chinese Chemical Soc

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“…Coordination complexes with NLO response properties have attracted increasing attention as potential molecular building block materials for optical communications and optical data processing [5–8] . There are several reports about metal (II) complexes highlighting the NLO properties, which also possess the advantages of organic and metallic properties [9–12] . On the other hand, the world is currently fighting a COVID‐19 pandemic.…”

Section: Introductionmentioning

confidence: 99%

“…They can form metal complexes with Fe(II), Ni(II), Zn(II) and Cu(II) ions as an inhibitor for COVID‐19 [24–26] . Recently, our lab has synthesized several novel metal complexes possing good optoelectronic properties [10–12] . Unlike the previous several studies, we have synthesized a novel copper (II) complex [Cu(phen) 3 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Copper(II) Coordination Complex, Its Molecular Docking and Computational Exploration for Novel Functional Properties: A Dual Approach

et al. 2021

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The present investigation uses a dual approach to study the copper (II) complex [Cu(phen) 3 ]. (ClO 4) 2 .HL.CH 3 CN (1) and its cationic complex-[Cu(II)(phen) 3 ] 2 + (1 a), where, HL = 4-Bromo-2((Z)-(naphthalene-4-ylimino)methyl)phenol, phen = 1,10-phenanthroline. The complex (1) crystallized in the triclinic system of the space group P-1 with two molecules in the unit cell and reveals a distorted octahedral geometry. Inspiring by recent developments to find a potential inhibitor for the COVID-19 virus, we have also performed molecular docking study of [Cu(phen) 3 ] + 2 to see if our novel complex shows an affinity for the main protease (M pro) of COVID-19 spike protein. Interestingly, the results are found quite encouraging where the binding affinity and inhibition constant were found to be À 8.400 kcal/mol and 0.661 μM, respectively, for the bestdocked confirmation of [Cu(II)(Phen) 3 ] + 2 complex with M pro protein. This binding affinity is reasonably well as compared to recently known antiviral drugs. For instance, the binding affinity of [Cu(II)(Phen) 3 ] + 2 complex is found to be better than recently docking results of chloroquine (À 6.293 kcal/mol), hydroxychloroquine (À 5.573 kcal/mol) and remdesivir (À 6.352 kcal/mol) with M pro protein. Thus, we believe the broad-spectrum functional properties of our complex will provoke not only the interest of material chemists in materials designing but also incite the drug designing community.

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A study of structural effects on linear and nonlinear response of bicompartmental Ni (II) Schiff base complexes

Mohan

Sreejith

Kuttippurath

et al. 2019

Applied Organom Chemis

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Herein we investigate imaginary third order NLO activity, optical limiting capability and first hyperpolarizabilities of five Ni (II) salen complexes using experimental and theoretical methods. The complexes are tuned to have different NLO response by changing mainly the diimine spacer group. Out of the compounds reported, the one with o‐phenylene spacer group exhibits the highest NLO activity comparable with that of polymers and semiconductors which is followed by the compound with ethylene spacer unit. The order of activity is a direct function of the degree of π‐delocalization. Further all the tested compounds returned outstanding optical limiting capabilities making them excellent materials for fabrication of such devices. The experimental results were substantiated with frontier orbital calculations carried out using DFT at M06/6‐31G* level of theory and complex with aromatic spacer group exhibits least energy gap and highest activity. The total dipole moment, polarizability and first hyperpolarizability were also calculated at the same level of theory which are also in line with the experimentally observed results.

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A dual approach to study the key features of nickel (II) and copper (II) coordination complexes: Synthesis, crystal structure, optical and nonlinear properties

Cited by 39 publications

References 101 publications

Synthesis, characterization, and antioxidant activity of heterocyclic Schiff bases

Synthesis, characterization, and antioxidant activity of heterocyclic Schiff bases

Synthesis of Copper(II) Coordination Complex, Its Molecular Docking and Computational Exploration for Novel Functional Properties: A Dual Approach

A study of structural effects on linear and nonlinear response of bicompartmental Ni (II) Schiff base complexes

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