Water Exchange
The exchange between bulk and coordinated water is of fundamental interest as a measure of the intrinsic kinetic lability of metal ions. This rate is relevant to toxicity, catalysis, magnetic resonance imaging, and other effects. For octahedral mono- and dicationic aquo complexes, these exchange processes occur via an interchange pathway that has more or less dissociative character. Rates vary by a factor of 1018, 3+ being the slowest and + being one of the fastest for octahedral complexes. Charge has a significant influence on these rates but non-electrostatic effects are also important.
Read more about this topic: Dissociative Substitution
Famous quotes containing the words water and/or exchange:
“—the main jet
Struggling aloft unti it seems at rest
In the act of rising, until
The very wish of water is reversed,”
—Richard Wilbur (b. 1921)
“I know nothing which life has to offer so satisfying as the profound good understanding, which can subsist, after much exchange of good offices, between two virtuous men, each of whom is sure of himself, and sure of his friend. It is a happiness which postpones all other gratifications, and makes politics, and commerce, and churches, cheap.”
—Ralph Waldo Emerson (1803–1882)