Metal Ion Binding Characteristics
Metal Ion Complexation Kinetics
Books and Reviews
Chelate (from Greek claw)
Multiple bonding of two or more atoms of a single molecule to a metal ion, often to
form Fve- or six-membered rings.
A molecule or ion with a donor atom possessing a lone pair of electrons that interacts
with a metal ion.
The negative decade logarithm of the hydrogen ion activity or concentration. Almost all
chemists and biochemists calibrate a pH meter with buffers that yield a pH scale based
closely on hydrogen ion activity. Many coordination chemists calibrate a pH meter
using known concentrations of hydrogen ion. In the region of 0.1 to 0.2 ionic strength,
the concentration scale yields acidity constant logarithms (p
values) about 0.12 log
unit lower than those on the more common activity-based scale. Stability constants of
metal ions with ligands are unaffected by the choice of pH scale.