Kinetics of Oxidation of a Cuprous 2,2′,2″-Terpyridine Complex by Molecular Oxygen
2,2′,2″-Terpyridine (terpy) has been found to form a bis cuprous complex, Cu(terpy)2+, in aqueous acetonitrile solution. The reaction with molecular oxygen was found to proceed with a two-electron reduction of O2. [formula omitted] The kinetics of this reaction has been studied at 25.0° over the pH range from 5.3 to 8.0, and the rate law found to be -d[Cu(terpy)2+]/dt = Kexpti[Cu(terpy)2+] [O2], where Kexptl = a + b[CH3CN] + c[CH3CN]2/[terpy]xs, and a = 1.6 × 104 M-1 sec-1, b = 4.8 × 103 M-2 sec-1, c = 5.1 × 10-1 M sec-1, and [terpy]xs = [terpy]tot-2[Cu+], Possible mechanisms for this reaction are discussed. © 1975, American Chemical Society. All rights reserved.
Crumbliss, AL; Poulos, AT
Volume / Issue
Start / End Page
Electronic International Standard Serial Number (EISSN)
International Standard Serial Number (ISSN)
Digital Object Identifier (DOI)