Investigation on the physicochemical properties of trans -4-stilbenecarboxaldehyde-derived hydrazones and their copper(II) complexes

Tamayo, Lenka V.; Silva, Jéferson G. Da; Quintão, Matheus Campos; Duarte, Hélio A.; Louro, Sônia R.W.; Beraldo, Heloísa

doi:10.1016/j.poly.2017.06.008

Cited by 4 publications

(2 citation statements)

References 35 publications

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“…The ESI-MS (+) and elemental analysis of Ni-L proved that the ratio of the ligand to metal ion is 1:2 it showed m/z: 524.81 due to [Ni +2 + 2L+H + ], the complex formed via coordination between carbonyl and negatively charged nitrogen with the metal ion to form a stable 5-membered ring. IR data showeddecreasing of their stretching frequencies on coordination (ῡ C = O 1719 → 1669), (ῡ C = N1616 → 1599) (Tamayo et al, 2017). Based on the magnetic susceptibility results and spectral data obtained, the expected structure of the complex is square planar formed by the combination of the metal ion with two ligand molecules and it is a diamagnetic (Sreejith, Nair, Smolenski, Jasinski, & Prathapachandra Kurup, 2018).…”

Section: Description Of Complexes Structuresmentioning

confidence: 88%

Synthesis, molecular docking and computational studies of novel hydrazone complexes

Salah

Kandil

El-Nasser

2019

Journal of Radiation Research and Applied Sciences

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In this study, a hydrazone ligand complexes based on p-anisidine and acetylacetone derivatives with transition metals like Ni, Cu, Fe, and Zr were prepared. The structure of the prepared compounds was confirmed using Nuclear magnetic resonance (1 H-NMR and 13 C-NMR), Distortionless enhancement by polarization transfer (DEPT), heteronuclear single quantum coherence (HSQC-NMR), Correlated Spectroscopy (COSY-NMR), Fourier-transform infrared spectroscopy (FT-IR) and Electrospray ionization mass spectrometry (ESI-MS). The x-ray single crystal of the ligand was studied and the results showed that an intramolecular N-H. .. .O = C hydrogen bond (1.87Å) exists that stabilizes the geometrical structure of the ligand. Also, the magnetic properties for the prepared complexes were studied using Gouy's method of susceptibility measurement. In addition, there in silico docking and In vitro antibacterial activities were investigated and the results showed that Fe complex has the highest antimicrobial activity. The expected structures and conformers for the prepared ligands and complexes were examined and fully optimized using the level B3LYP/6-31G*.

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Section: Description Of Complexes Structuresmentioning

confidence: 88%

Synthesis, molecular docking and computational studies of novel hydrazone complexes

Salah

Kandil

El-Nasser

2019

Journal of Radiation Research and Applied Sciences

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“…The desired hydrazone fragments were prepared through the coupling of chloroanthranilic acid diazonium salt moiety with acetylacetone, ethyl acetoacetate and diethyl malonate in the presence of sodium acetate as a catalyst. (Dhande, Badwaik, & Aswar, 2007;Mahmoud et al, 2018a;Mandewale, Kokate, Thorat, Sawant, & Yamgar, 2016;Popov et al, 2017 (Philip, Antony, Eeettinilkunnathil, Kurup, & Velayudhan, 2018;Sergienko et al, 2014;Tamayo et al, 2017), Cu ion is surrounded by penta and tetracoordination sites with the expected square pyramid and tetrahedral structures.…”

Section: Description Of Ligands Structuresmentioning

confidence: 99%

Synthesis, characterization, computational and biological activity of novel hydrazone complexes

Salah

Kandil

El-Nasser

2019

Journal of Radiation Research and Applied Sciences

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In this work, novel hydrazone ligands were prepared by the reaction of chloroanthranilic acid diazonium salt with acetylacetone (L 1 ), ethyl acetoacetate (L 2 ) and diethyl malonate (L 3 ). The prepared compounds were reacted with some transition metals like Ni(II), Cu(II), and Fe(III). The structures of the prepared complexes were confirmed using nuclear magnetic resonance ( 1 H-NMR and 13 C-NMR), distortionless enhancement by polarization transfer (DEPT), heteronuclear single quantum coherence (HSQC-NMR), correlated spectroscopy (COSY-NMR), Fouriertransform infrared spectroscopy (FT-IR) and electrospray ionization mass spectrometry (ESI-MS). Also, the magnetic properties for the prepared complexes were studied using Gouy's method of susceptibility measurement. Also, there in silico docking and in vitro antibacterial activities were investigated and the results showed that Ni complexes have the highest antimicrobial activity. The expected structures and conformers for the prepared ligands and complexes were examined and fully optimized using the level B3LYP/6-31G*.

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Spectroscopic study of copper adsorption by chitosan and lignin composites containing layered double hydroxides

Castillo

Doumer

Arízaga

et al. 2018

Journal of Electron Spectroscopy and Related Phenomena

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Investigation on the physicochemical properties of trans -4-stilbenecarboxaldehyde-derived hydrazones and their copper(II) complexes

Cited by 4 publications

References 35 publications

Synthesis, molecular docking and computational studies of novel hydrazone complexes

Synthesis, molecular docking and computational studies of novel hydrazone complexes

Synthesis, characterization, computational and biological activity of novel hydrazone complexes

Spectroscopic study of copper adsorption by chitosan and lignin composites containing layered double hydroxides

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