Spectroscopic and biological activity studies on tridentate Schiff base ligands and their transition metal complexes

Synthesis, spectroscopic characterization, and thermal studies of novel Schiff base complexes: theoretical simulation studies on coronavirus (COVID-19) using molecular docking

“…Table 1 summarizes the findings of the elemental tests as well as the melting point. The obtained results are in good agreement with the measured values, and the melting point of the prepared Schiff base is sharp, indicating purity [ 16 ].

Fig.

…”

Synthesis, characterization, fluorescence, and thermal studies of a new series of Schiff bases derived from sulfaproxylene

“…∆ ( 2 ) where Kb and hare Boltzmann and Plank constant, respectively. The negative values of ΔS indicate that the activated compound has a more ordered than the reactants and shows that the decomposition reactions processes occur at very low rate [46]. The positive values of ΔH indicate that the decomposition processes are endothermic reactions, as expected.…”

Antimicrobial and Bioinformatic Modelling Studies of Isatin Mixed Ligand and Some Ternary Chelates

“…Three bands at l9,800, l5,200 and l4,620 cm −l which may be assigned to 3 A 2 g(F)→ 3 T 2 g(F), 3 A 2 g(F)→ 3 T l g(F) and 3 A 2 g(F)→ 3 T l g(P) transitions, respectively, were appeared in the spectrum of Ni(II) complex which suggest having an octahedral geometry [34–36] …”

“…Cu(II) complex exhibite band at l6 l00 cm −l and band at l3600 cm −l which may be related to 2 B l g→ 2 B 2 g, 2 B l g→ 2 A l g and 2 B l g→ 2 Eg transitions, which prove the presence of octahedral geometry. In addition to d‐d transition, another band at 292 l3 cm −l which assignable to charge transfer (lMCT), is well compatible with an octahedral geometry [36,37] …”