Kinetics of substitution at tris-(5-bromo-1,10-phenanthroline)-iron(II) and -iron(III)

Summary Rate constants are reported for several substitutions of the tris-5-bromo-1,10-phenanthroline (5-Brphen) complexes of iron(II) and of iron(III). These reactions include aquation in aqueous solution [iron(II) and iron(III)] and in several series of binary aqueous mixtures [iron(II) only], and reaction with hydroxide and with cyanide [iron(II) only]. Reactivities are compared with those established fot analogous reactions of related complexes, and with thermodynamic parameters of the ligands and complexes.