Isolation, characterization of an intermediate in an oxygen atom-transfer reaction, and the determination of the bond dissociation energy

Victor N Nemykin; Julia Laskin; Partha Basu

doi:10.1021/ja049121f

Isolation, characterization of an intermediate in an oxygen atom-transfer reaction, and the determination of the bond dissociation energy

J Am Chem Soc. 2004 Jul 21;126(28):8604-5. doi: 10.1021/ja049121f.

Authors

Victor N Nemykin¹, Julia Laskin, Partha Basu

Affiliation

¹ WR Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, USA.

PMID: 15250684
DOI: 10.1021/ja049121f

Abstract

The synthesis and structure of a phosphine oxide-bound intermediate molecule originating from a dioxo-molybdenum(VI) complex is described. The loss of phosphine oxide has been followed by surface-induced dissociation mass spectrometry that gave the bond dissociation energy of 29.5 (+/- 3.5) kcal/mol. Considering the bond dissociation energy for a Mo=O bond to be 100 kcal/mol, this value suggests that the primary driving force for the reaction is the formation of the intermediate complex.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.
Research Support, U.S. Gov't, P.H.S.

MeSH terms

Models, Molecular
Molybdenum / chemistry*
Organometallic Compounds / chemistry*
Oxidation-Reduction
Oxygen / chemistry*
Thermodynamics

Substances

Organometallic Compounds
Molybdenum
Oxygen