The sterically hindered salicylaldimine ligands with their copper(II) metal complexes: Synthesis, spectroscopy, electrochemical and thin-layer spectroelectrochemical features

Copper(II) complexes of coumarin-derived Schiff bases and their anti-Candida activity

“…The molar conductivity values determined for the complexes were in the range of 2.50-21.4 S cm 2 / mol, and were consistent with those recorded for other Cu(II) Schiff base complexes and would suggest their non-electrolytic character [64,65].…”

The orthopalladation dinuclear [Pd(L1)(μ-OAc)]2, [Pd(L2)(μ-OAc)]2 and mononuclear [Pd(L3)2] complexes with [N, C, O] or [N, O] containing ligands: Synthesis, spectral characterization, electrochemistry and catalytic properties

“…Characteristic absorptions in the spectra FT-IR of ligands and their Pd(II) metal complexes are represented by stretching vibrations of the CH@N group of ligands between 1629-1607 cm À1 . The low frequency shift of the CH@N stretch (in between 1614 and 1592 cm À1 ), in comparison with the free ligands, is consistent with N-coordination of Pd(II) ions to the azomethine ligands[32,36,37]. The coordination of the salicylaldimine ligands to the Pd(II) center through the azomethine nitrogen atom is expected to the reduce the electron density in theazomethine link and lower the t(C@N) absorption frequency.…”

Silicon containing new salicylaldimine Pd(II) and Co(II) metal complexes as efficient catalysts in transformation of carbon dioxide (CO2) to cyclic carbonates

“…The compounds are yellow ligands, green or dark green Pd (II) metal complexes and brown or dark brown Co(II) metal complexes solids at room temperature. Ligands (L 1 H), (L 2 H), (L 3 H), and (L 4 H) were prepared by condensation between different salicylaldehyde and N-(3-(trimethoxysilyl)propyl)-ethylenediamine using the general method described for the preparation of salicylaldimine ligands [23,24]. Its characterization data (see Experimental section) agreed with the proposed formulae.…”