Synthesis, crystal structure, DFT computation and bioactivity measurements of copper(II) polypyridyl complexes

Structure and antioxidant superoxide dismutase activity of copper(II) hydrazone complexes

“…Other 2and 2.212(2) Å) bond lengths in the square-pyramidal complex. These bond lengths and angles are in good agreement with that recently reported for analogous square-pyramidal Cu(II) species [62,[68][69][70][71][72]. In the outer sphere of complex the nitrate anion was found to be disordered.…”

“…1 are attributed to the presence of methyl group in complex 1[60]. The presence of bands at 1092, 1012, 790 and 696 for complex 2 and 1091, 1013, 789 and 702 cm -1 for complex 3, indicate a T d symmetry of ClO 4 ─ , suggest the presence of ClO 4 ─ outside[61,62] in the coordination sphere of the complex 2 and 3. The -N-H stretching frequency appeared at 3440 and 3421 cm -1 for complex 2 and 3, respectively, thus inducting the coordination of ligand to metal ion in deprotonated form[63] in 2 and deprotonation of substituted imidazole moiety in complex The in-plane deformation mode of the pyridine ring 621±1 cm -1 in all the present copper(II) complexes, suggests the coordination of the pyridine nitrogen[64,65].…”

Copper(II) and nickel(II) complexes with N′-[(Z)-phenyl(pyridin-2-yl)methylidene]acetohydrazide: Synthesis, crystal structures, DFT calculations and antioxidant effects

“…The 50% activity of the NBT reduction defined as IC 50 were estimated for complexes 1 and 2. The observed IC 50 values of the present complexes summarized in Table 10 revel that their antioxidant activity in the range of the SOD mimics represented in literature [76][77][78][79][80]. The IC 50 value of complex 2 (104 μmol) is greater than 1 (62 μmol).…”

“…• − scavenger [21][22][23]. In general, 400 l sample to be assayed was added to a solution containing 2.1 ml of 0.2 M potassium phosphate buffer (pH 8.6) and 1 ml of 56 M of alkaline DMSO solution was added while string.…”

Two new Cu(II) and Ni(II) 1,10-phenanthroline complexes with anions of barbituric acids in the outer sphere: Synthesis, structure, spectroscopic, magnetic and thermal properties

“…Transition metal сomplexes containing phenanthroline (Phen) have been interesting for their applicability in catalysis [1], medicinal chemistry [2], photoelectronic and magnetic materials [3]. Attached to metal ions, the Phen ligands favor the intermolecular pep stacking interactions with other aromatic molecules or ions, such as barbituric acids [4], which can play an important role in sustaining supramolecular solid-state architectures [5].…”