Abstract
The reaction between CpMn(CO) 2THF (Cp= η 5-C 5H 5, THF=tetrahydrofuran) and nitrogen containing ligands is studied in THF solution. In all cases the products of the reaction are the known CpMn(CO) 2L complexes (L=piperidine, 4-acetylpyridine). The reaction of the solvated complex with both ligands studied proceeds through a purely dissociative mechanism. In good agreement with previous thermochemical measurements, kinetic analysis yields an average value of 24.0±3.0 kcal mol −1 for the CpMn(CO) 2–THF bond dissociation energy. The results of the present study clarify the relationship between metal–solvent bond strengths obtained by kinetic methods and those obtained by thermochemical measurements.
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