Synthesis, crystal structure, theoretical studies and biological evaluation of nickel(II) complex derived from N2O2 tetradentate Schiff base

Boudraa, Naouel; Assabaa, Rachida; Ghichi, Nadir; Hannachi, Douniazed; Djedouani, Amel; Kraim, Khairedine; Kashi, Imad; Crouchet, Aurélien; stoeckli-evans, Helen

doi:10.1016/j.molstruc.2023.136398

Cited by 6 publications

(1 citation statement)

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“…[23] Within this domain, metal complexes featuring π-conjugated ligands have emerged as a prominent category of NLO materials. [24,25] This distinction is especially attributable to their thermal stability, capacity for redox switching, electronic characteristics, and ultrafast response times. Density functional theory (DFT) calculations have become one of the most powerful methods to predict and design novel materials with excellent optical properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, XRD/HSA‐Interactions, QTAIM Analysis, Optical and Nonlinear Optical Responses Studies of Cu(II) Complex with the Schiff Base Ligand Derived from 5‐Bromosalicylaldehyde

Lamiri,

Djaafer‐Moussa,

Merabet

et al. 2023

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In this study, we efficiently synthesized a new Schiff base ligand (H2L) along with its mononuclear complex Cu(II) (1). The chemical structures of these compounds were rigorously determined using various analytical techniques, including UV‐ Vis., FT‐IR, 1H NMR, 13 C NMR CHN elemental analysis, single crystal X‐ray diffraction, and quantum calculations. The X‐ray diffraction analysis of the complex revealed the presence of intermolecular interactions characterized by C−H…Br hydrogen bonds, leading to the formation of 2D layers. We conducted a systematic investigation of these intermolecular interactions using HS and QTAIM analysis. Additionally, we affected a comprehensive analysis of H2L, 1, and 2, focusing on their structural, electronic, and optical properties using DFT and TD‐DFT calculations in gas and solvent. The computed parameters closely matched the experimental data, demonstrating good agreement. Reactivity parameters indicated that complex 2 exhibited lower hardness (~1.7 eV) compared to 1 (~1.8 eV) and H2L (~4.4 eV). NLO analysis revealed substantial α and β values for compound 2 in both static and dynamic regimes. Notably, the β values of the title complexes increased with higher solvent polarity. In summary, our investigation highlights the potential of the title complexes as promising candidates for second‐order nonlinear optical materials.

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Section: Introductionmentioning

confidence: 99%