Synthesis and spectroscopic characterization of indomethacin-Cd(II), Ce(III), and Th(IV) complexes: IR, 1H NMR, thermal, and biological studies

Refat, Moamen S.; Ibrahim, Mohamed Y.; Killa, H. M.; Fetooh, Hammad

doi:10.1134/s1070363213120463

Cited by 5 publications

(3 citation statements)

References 24 publications

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“…The thermograms and the calculated thermal parameters for the complexes show that the stability of these complexes depends on the nature of the central metal ion. The thermal stability of the metal complexes was found to increase periodically with increase in atomic number of the metal and the larger value of charge/radius ratio [62].…”

Section: Molar Conductivitiesmentioning

confidence: 97%

Synthesis, chemical structure elucidation, and biological studies on the effect of some vital metal ions on sulfadoxine

et al. 2015

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Complexes of sulfadoxine as a pharmaceutical ligand with Ca(II), Mg(II), Zn(II), Fe(III), and VO(II), were synthesized and characterized by microanalysis, conductance, infrared and thermogravimetric (TGA/DTG and DTA) measurements. The ligand can be coordinate as a bidentate feature via (C=N) and (S=O) groups. Sulfadoxine ligand as well as their complexes has been checked against some kinds of bacteria and fungi which gave a significant effect. The kinetic thermodynamic parameters such as: activation of E * , ΔH * , ΔS * , and ΔG * were estimated using Coats-Redfern as well as Horowitz-Metzger equations.

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Section: Molar Conductivitiesmentioning

confidence: 97%

Synthesis, chemical structure elucidation, and biological studies on the effect of some vital metal ions on sulfadoxine

et al. 2015

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“…This result is similar to the thermal decomposition for the Ce(indo) 3 (H 2 O) 3 complex reported in reference. 15 Figure 3 also displays the TGA curves for the Eu 3+ complexes (4 and 7) containing bipy and phen ligands.…”

Section: Synthesis and Characterizationmentioning

confidence: 99%

“…1 Its coordination complexes with transition metals have been extensively investigated in terms of structural and spectroscopic properties. 15 Generally, these complexes present other donor ligands because indomethacinate (indo) cannot saturate the coordination sphere of the metal ions. In the case of the rare earth complexes, neutral ligands such as heteroaromatic and phosphine oxide ligands have been not only used for this purpose, but have been shown that they may also play an essential role in the luminescence sensitization that involves either a direct intramolecular energy transfer to the metal ion or an indirect mechanism via energy transfer to other ligands.…”

Section: Introductionmentioning

confidence: 99%

Rare Earth-Indomethacinate Complexes with Heterocyclic Ligands: Synthesis and Photoluminescence Properties

Filho¹,

Santos²,

Vale³

et al. 2017

J. Braz. Chem. Soc.

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In this work, synthesis, characterization and photophysical properties of trivalent rare earth complexes with a nonsteroidal anti-inflammatory drug [the indomethacinate (indo), presenting formulas RE(indo) 3 (H 2 O) x (x = 3, for Eu 3+ and Gd 3+ , and x = 4 for Tb 3+), RE(indo) 3 (bipy) and RE(indo) 3 (phen) (bipy: 2,2'-bipyridine, and phen: 1,10-phenanthroline)] were investigated. Based on photoluminescent results, the intramolecular energy transfer process from T 1 triplet states of indo, phen and bipy ligands to the 5 D 0 emitting level of the Eu 3+ ion in the coordination compounds is discussed. Accordingly, it is proposed two possible intramolecular energy transfer mechanisms between indomethacinate ligand and rare earth ions, which involve the participation of excited electronic states of the heterocyclic ligands as intermediate ones.

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Novel Ru(II) - N-Acetyl-Para-Aminophenol complex: synthesis, characterization, biological activities, DFT investigation and in silico ADMET studies

Zerrouk,

Hamrani,

Medigue

et al. 2023

J Chem Sci

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Synthesis and spectroscopic characterization of indomethacin-Cd(II), Ce(III), and Th(IV) complexes: IR, 1H NMR, thermal, and biological studies

Cited by 5 publications

References 24 publications

Synthesis, chemical structure elucidation, and biological studies on the effect of some vital metal ions on sulfadoxine

Synthesis, chemical structure elucidation, and biological studies on the effect of some vital metal ions on sulfadoxine

Rare Earth-Indomethacinate Complexes with Heterocyclic Ligands: Synthesis and Photoluminescence Properties

Novel Ru(II) - N-Acetyl-Para-Aminophenol complex: synthesis, characterization, biological activities, DFT investigation and in silico ADMET studies

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