- Title
- Complexation kinetics of copper(II) and nickel(II) with macrocycles: identification of an outer-sphere chelate effect
- Creator
- McCann, Nichola; Lawrance, Geoffrey A.; Neuhold, Yorck-Michael; Maeder, Marcel
- Relation
- Inorganic Chemistry Vol. 46, Issue 10, p. 4002-4009
- Publisher Link
- http://dx.doi.org/10.1021/ic0621143
- Publisher
- American Chemical Society
- Resource Type
- journal article
- Date
- 2007
- Description
- Ligand-protonation constants and complexation kinetics of differently protonated forms of 10-methyl-1,4,8,12-tetraazacyclopentadecan-10-amine, 1,4,8,12-tetraazacyclopentadecane, and 1,4,8,12-tetraazacyclopentadecan-10-carboxylic acid with Cu(II) and Ni(II) in aqueous solution have been determined. These results are combined with a wide range of published complexation rate constants of partially protonated macrocyclic ligands with the same metal ions. Insight is gained into the electrostatic effects and the outer-sphere interaction of partially protonated ligands with aquated metal ions. An outer-sphere chelate effect has been ascertained.
- Subject
- complexation kinetics; copper(II); nickel(II); outer-sphere chelate effect
- Identifier
- http://hdl.handle.net/1959.13/33243
- Identifier
- uon:3186
- Identifier
- ISSN:0020-1669
- Language
- eng
- Reviewed
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