Design of Ligands That Stabilize Cu(I) and Shift the Reduction Potential of the Cu(II/I) Couple Cathodically in Aqueous Solutions.
The ligands R(2)NCH(2)CH(2)N(R)CH(2)CH(2)N(R)CH(2)CH=CH(2), where R = H, CH(3), were synthesized. The stability constants of their complexes with Cu(II) and Cu(I) in aqueous solutions were determined. Both ligands stabilize Cu(I) in aqueous solutions, though the reduction potentials of both (CuL(i)())(2+/+) couples are shifted cathodically in comparison to the Cu(2+/+)(aq) couple. These properties indicate that these complexes should be good catalysts for a variety of processes that are catalyzed by Cu(I).
Navon
Nadav
N
The Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel, Nuclear Research Centre Negev, Beer-Sheva, Israel, The College of Judea and Samaria, Ariel, Israel, and Chemistry Department, University of Florence, Florence, Italy.
Golub
Gilad
G
Cohen
Haim
H
Paoletti
Piero
P
Valtancoli
Barbara
B
Bencini
Andrea
A
Meyerstein
Dan
D