Penta-, Hexa-, and Tetracyanoferrates

Kinetic parameters for formation and dissociation of yet more penta-cyanoferrate(II) complexes [Fe(CN)5L] have been reported. Rate constants for a number of such reactions are collected in Table [relevant [Pg.155]

8 Inert-Metal Complexes Other Inert Centers [Pg.156]

4- Aminopyridine Pyridine-4-aldoxime Pyridine-4-aldoximate l-Benzylpyridinium-4-aldoxime (31) l-Phenylacylpyridinium-4-aldoxime (32) Benzoquinonediiniine-Fe(CN)5 (33) [Pg.156]

4- Cyanopyridine-Ru(NH 3)5 4-Cyanopyridine Ammonia Isopropylamine Benzylamine 4-f-Butylpyridine 4-Phenylpyridine A - -pentylpyrazinium (34) [Pg.156]

All the investigations cited so far have been in aqueous solution medium dependence of dissociation rate constants in binary aqueous solvents (cosolvents methanol, r-butyl alcohol, 1,2-ethanediol, 1,2,3-propanetriol, and sucrose) has been reported for the 4-cyanopyridine and 4,4 -bipyridyl penta-cyanoferrates(II). For water-rich media (IQi lD 16.5), plots of logarithms of rate constants against mole fraction organic component are linear, against 1/D almost linear. Slopes differ greatly between cosolvents, but results can be correlated quite satisfactorily with a three-parameter equation incorporating acidity and basicity parameters and the excess function [Pg.157]

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