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Aquation and acid catalysis

Substitution of a ligand by water molecule is called aquation. Here are some examples  [Pg.129]

Aquations are usually acid catalyzed. Thus, aquation (2.6.8) is much faster in the presence of an acid  [Pg.129]

The reaction mechanism obviously involves protonation of the leaving ligand. Protonated ligand leaves the positive metal ion with increased ease. If the leaving ligand is NH3, acid addition has no effect on the rate because NH3 is not charged. [Pg.129]

There are exceptions. Thus, an acid aquation of [Ru(NH3)g] is very likely to proceed according to the following mechanism  [Pg.130]

The rate constant of an acid catalyzed reaction is a composite value  [Pg.130]


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