Gas-Phase Atomic Metal Cations. Ligand Binding Energies, Oxidation Chemistry and Catalysis
Ion cyclotron resonance (ICR) spectroscopy with a pulsed laser volatilization/ ionization source of atomic metal cations has recently been applied to studies of the reactions of gas-phase metal ions with neutral molecules 11,2]. Initial results from this laboratory have included a variety of mechanistic studies [1–4] as well as measurements of gas-phase ligand binding energies for a number of different metal cations [5–9]. These mechanistic and thermodynamic studies yield data which is useful in developing models for understanding molecular interactions.
KeywordsBond Dissociation Energy Oxygen Base Synergistic Enhancement Ligand Dissociation Reference Acid
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- 5.J.S. Uppal, R.H. Staley, J. Am. Chem. Soc., in press.Google Scholar
- 6.J.S. Uppal, R.H. Staley, J. Am. Chem. Soc., in press.Google Scholar
- 7.R.W. Jones, R.H. Staley, J. Am. Chem. Soc., in press.Google Scholar
- 8.R.W. Jones, R.H. Staley, J. Am. Chem. Soc., in press.Google Scholar
- 9.M.M. Kappes, R.H. Staley, J. Am. Chem. Soc., submitted for publication.Google Scholar
- 11.D.H. Aue, M.T. Bowers in “Gas Phase Ion Chemistry”, Volume 2, M.T. Bowers, Ed., Academic Press: New York, 1979, Chapter 9.Google Scholar
- 15.M.M. Kappes, R.W. Jones, R.H. Staley, J. Am. Chem. Soc., in press.Google Scholar
- 16.J.E. Huheey, “Inorganic Chemistry”, Second Edition, Harper and Row: New York, 1978, pp. 489–498.Google Scholar
- 19.Bond energies from Benson, S.W. “Thermochemical Kinetics”, 2nd Edition, Wiley: New York, N.Y., 1976.Google Scholar
- 20.Assuming a Langevin rate of 5 × 10-10 cm3 molec-1 sec-1, quench gas pressures of 2 × 10-5 torr correspond to about 70 collisions within a typical 200 ms experiment.Google Scholar
- 21.For examples, see (a) D.S. Bomse, R.L. Woodin, J.L. Beauchamp, in “Advances in Laser Chemistry”, A.H. Zewail: ed. Springer Series in Chemical Physics, Springer: Berlin, 1978.Google Scholar
- 22.The standard enthalpy change for this reaction was calculated from heats of formation given in ref. 20.Google Scholar