Reactivity trends are reported for aquation of tris(5-nitro-1,10-phenanthroline)iron(II) in ternary H20-t-BuOHpolyethyleneglycol (PEG400) solvent media. Wavelengths of maximum absorption for the lowest energy chargetransfer band of dicyanobis(2-acetylpyridineoximato)iron(II) are reported for the same series of ternary solvent mixtures. There is no overall correlation of rate constants with wavelength shifts, indicating that solvation effects in the two systems are not directly related.
Pyridineoximate and dioximate Fe ~I complexes 625 behaviour of low-spin iron(II) and dioximate ligands Summary Kinetic results are presented for dissociation (aquation) of low-spin tris-diimine-iron(II) complexes derived from 2-pyridinealdoxime, 2-acetylpyridineketoxime and 2benzoylpyridineketoxime in acidic aqueous and mixed aqueous media. The preparation and solvatochromic behaviour are described for ternary bis-diimine-dicyanoiron(II) complexes derived from 2-acetylpyridineketoxime and from four dioximes. These results are considered in relation to hydration and (selective) solvation of these ligands and their complexes.
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