New Compounds from the Roots of Corsican Calicotome Villosa (Poir.) Link.: Two Pterocarpans and a Dihydrobenzofuran

Paoli, Mathieu; Casabianca, Hervé; Casanova, Joseph; Bighelli, Ange

doi:10.3390/molecules25153467

Cited by 3 publications

(1 citation statement)

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“…On the other hand, multi signals appeared in the chemical shift range from 6.70 to 7.68 ppm. These correspond to ten protons attributed to the protons of [10,[23][24]. Nickel complex was revealed a good solubility in DMSO solvent at room temperature, while the other complexes were insoluble in all organic solvents so, the 1 H-NMR spectrum data of nickel complex was recorded only in DMSO-d 6 solvent and showed multi signals to aromatic protons at chemical shift δ = 7.63-7.79 ppm.…”

Section: H and 13 C-nmr Spectra Analysismentioning

confidence: 98%

Synthesis, Characterization and Thermogravimetric Study of Some Metal Complexes of Selenazone Ligand Nanoparticles Analogue of Dithizone

2021

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A new method for preparing 1,5-diphenylselenocarbazone (selenazone) nanoparticles and their complexes with Pb2+, Cd2+, Co2+, and Ni2+ has been performed using hot methanol solvent. The ligand and its complexes were characterized using FT-IR, UV-Vis, 1H-NMR, 13C-NMR, X-ray powder diffraction (XRD), EI-mass spectrometry, scanning electron microscopy (SEM), HG and flame-atomic absorption spectrophotometer, thermal analysis (TG/DTA), and molar conductance measurements. The molar conductance measurements in all complexes were recorded low values in DMSO, indicating that all the metal complexes were non-electrolytes except the nickel complex that possessed an electrolytic nature. Kinetic and thermodynamic parameters of complexes (A, E, ∆H, ∆S, and ∆G) have been computed using three kinetic models of Coast-Redfern, Broido, and Horowitz-Metzger, that illustrated the decomposition reactions in all steps were nonspontaneous. Thermogravimetric analyses (TG/DTA) were consistent with the atomic spectroscopy data proving that the geometry shape of all the complexes was octahedral.

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Section: H and 13 C-nmr Spectra Analysismentioning

confidence: 98%