KINETIC PREFERENCE WITHOUT THERMODYNAMIC STABILIZATION IN THE INTRAMOLECULAR VS INTERMOLECULAR FORMATION OF COPPER-DIOXYGEN COMPLEXES

Authors
WEI N LEE DH MURTHY NN TYEKLAR Z KARLIN KD KADERLI S JUNG B ZUBERBUHLER AD
Citation
N. Wei et al., KINETIC PREFERENCE WITHOUT THERMODYNAMIC STABILIZATION IN THE INTRAMOLECULAR VS INTERMOLECULAR FORMATION OF COPPER-DIOXYGEN COMPLEXES, Inorganic chemistry, 33(21), 1994, pp. 4625-4626
Citations number
20
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Inorganic chemistry → ACNP
ISSN journal
00201669
Volume
33
Issue
21
Year of publication
1994
Pages
4625 - 4626
Database
ISI
SICI code
0020-1669(1994)33:21<4625:KPWTSI>2.0.ZU;2-4
Abstract
The kinetics of O-2 reaction with dinuclear 2a, having linked tris[(2- pyridyl)methyl]-amine (L) moieties, are described. Both Cu/O-2 = 1:1 a dducts and a Cu/O-2 = 2:1 mu-peroxo species (2c) form. At typical conc entrations, this overall reaction is faster than that observed for the parent mononuclear analogue [(L)Cu-I(RCN)](+) (1a), which forms [{(L) Cu-II}(2)(O-2)](2+) (1c); however, its thermodynamic stability is not enhanced. Relative enthalpic vs entropic contributions are detailed.