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.
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| http://dx.doi.org/10.1039/b906169j | DOI Listing |
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