Corrigendum: Cyanine Dyes Containing Quinoline Moieties: History, Synthesis, Optical Properties, and Applications

Ilina, Kristina; Henary, Maged

doi:10.1002/chem.202104530

Cited by 1 publication

(2 citation statements)

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“…π* transition in the nano-sized metal complexes spectra clearly supports the attraction of the azo group of HL towards the metallic centers. Nano-sized Co(II) complex electronic spectrum displayed two additional bands at 32,466 (sh) and 16,068 cm À1 (very low intensity) imputable to electronic transitions of the types 4 A 2g (F) ! 4 T 1g (P) and 4 A 2g (F) !…”

Section: Electronic Spectra and Magnetic Propertiesmentioning

confidence: 99%

“…Quinoline-based compounds have drawn considerable interest as a result of their interesting optical and electrical characteristics, in addition to their great applications in energy storage. [1][2][3][4][5] The electrical conductivities of quinoline derivatives have attracted significant interest, because of their important industrial applications, analytical uses, and physiological activity. 6 Quinaldine is one of the most important quinoline derivatives.…”

Section: Introductionmentioning

confidence: 99%

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Nano‐sized Co(II), Ni(II), and Zr(IV) complexes of quinaldine‐based azo dye for promising therapeutic and catalytic applications: Synthesis, characterization, density functional theory studies and molecular docking

Khedr,

Gaber,

Elsharkawy

et al. 2023

Applied Organom Chemis

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Novel azo dye containing the heterocyclic quinaldine nucleus, 3‐((2‐methylquinolin‐4‐yl)diazenyl)naphthalen‐2‐ol HL, and its Co(II), Ni(II) and Zr(IV) nano‐sized metal chelates have been synthesized and fully characterized by alternative analytical and spectral techniques. The finding indicated that the ligand coordinated as a monobasic bidentate via azo nitrogen and hydroxyl oxygen atom, resulting in octahedral geometry towards Co(II) and Zr(IV) complexes, and square planer geometry towards Ni(II) metal ion. Theoretical studies by DFT/B3LYP/6‐311+G(d,p)/LANLDZ including energetic parameters, geometrical optimization, dipole moment, and HOMO–LUMO energy gap were applied to support the geometrical arrangement of the complexes. The produced complexes were generated at the nanoscale, as evidenced by the average particle size from TEM. The average particle size calculated from TEM images for Co(II), Ni(II), and Zr(IV) complexes is 6.0, 12.0, and 5.5 nm, respectively. The antibacterial activity of the ligand compared with its metal complexes shows enhanced activity over the metal complexes against different types of bacteria. Antitumor efficacy of the compounds was tested against A‐549 and PANC‐1 cells, compared with the vinblastine standard. The cytotoxic efficiency of both Co(II) and Ni(II) complexes exceeded that of vinblastine. The anticancer activity of the Zr complex was then studied using molecular docking to determine the interactions between this molecule and PANC‐1. Docking studies revealed that the Zr complex produces four hydrogen bond contacts with the active amino acid residues Arg 136 and Asp 140, two hydrophobic interactions with Val 50 and Leu 147, and two electrostatic interactions with Arg 136. Also, the catalytic property of the free ligand and nanocomplexes were tested on the oxidative degradation of methyl violet 2B dye in the presence of H2O2. The following arrangement was observed for the pseudo‐first‐order rate constants: Co(II) complex (0.068 min−1) > Ni(II) complex (0.066 min−1) > Zr(IV) complex (0.061 min−1) > HL (0.037 min−1).

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Section: Electronic Spectra and Magnetic Propertiesmentioning

confidence: 99%