The reaction of dioxygen with the copper(I) Bz(3)tren complex (Bz(3)tren =
tris(2-benzylaminoethyl)anline) complex has been investigated using low tem
perature stopped-flow techniques, The formation of a superoxo as well as a
peroxo complex as intermediates was detected spectroscopically. The copper(
II) complexes [Cu(Bz(3)tren)H2O](ClO4)(2) and [Cu(Bz(3)tren)Cl]Cl were synt
hesized and structurally characterized. Both complexes react with dioxygen
in solution and formation of benzaldehyde was observed. (C) 2001 Elsevier S
cience B.V. All rights reserved.