title: Oxygen isotopic exchange in an MnIIIMn3IV-oxo cubane.
abstract: The rate and activation parameters for oxygen exchange of the mu(3)-oxo bridges in a manganese tetranuclear cluster with H(2)(18)O have been measured by ESI-MS; the observed DeltaS(double dagger) of -146 +/- 22 J K(-1.)mol(-1) is consistent with the expected associative mechanism of substitution.
authors: Department of Chemistry, University of California, Davis, CA 95616, USA.
authors: C André
authors: CA
authors: Ohlin
authors: Robin
authors: R
authors: Brimblecombe
authors: Leone
authors: L
authors: Spiccia
authors: William H
authors: WH
authors: Casey