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Hace 1 día · Complexes 1, 2, 3, and 6 displayed incomplete gradual SCO transitions, whereas 4 and 5 exhibited abrupt hysteretic spin transitions with loops of 12 and 16 K (250.0—262.0 K for 4, and 370.0—386.0 K for 5, respectively), closely resembling our previously reported complexes with SCN – and SeCN – anions.
Hace 4 días · This is not unexpected, as other compounds, [K(dme) x][La(Cp″) 3] and [La(Cp″) 2 (dme) y], were found to coexist in thermal equilibrium in the EPR spectra of THF solutions of [La(Cp″) 3] undergoing reduction in the presence of K. The parameters in Table 1 are in line with the values reported in the literature for La(II) complexes.
Hace 13 horas · The equilibrium constant of affinity complexes (Kd) is among the most frequently determined physicochemical parameters, with thousands of papers reporting Kd values monthly. Kd is classically computed via nonlinear regression of a binding isotherm and, ...
Hace 4 días · These complexes share vital components, including Co(II) centers, a fully deprotonated ligand [L]2−, halide ions, and solvent molecules. The [L]2− ligand contains two Co(II) centers, where phenolate oxygen atoms bridge the Co(II) centers, forming a Co2O2 four-membered ring.
Hace 6 días · that in equilibrium by definition all physical observables are. ... comparison with literature values obtained in cobalt (Co) ... promising types of molecular complexes, e.g., in chiral.
Hace 4 días · The calculations exhibit binding energies of about 40 kJ/mol, a value within the known range of hydrogen bond energies, especially toward anionic species 55 and the similar cobalt clusters. 32,33 In contrast, these values are significantly lower than the binding energies in cationic nickel–ethanol clusters. 26 Since a wavenumber of 3300 cm −1 equals an energy of ∼39 kJ/mol, we can assume ...
Hace 5 días · Measuring the chemical speciation of trace metals that are dominated by organic complexation, such as iron, copper, nickel, cobalt, and zinc, thus requires the characterization of metal-binding organic ligands, which comprise a small fraction of the much larger, heterogeneous, and largely uncharacterized pool of dissolved organic matter (DOM) that exists in seawater (Gledhill and Buck, 2012 ...
