Photofragment Spectroscopy of FeCH2 +, CoCH2 +, and NiCH2 + near the M+-CH2 Dissociation Threshold

John Husband, Fernando Aguirre, Christopher J. Thompson, Christopher M. Laperle, Ricardo B. Metz

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Photofragment spectra of jet-cooled MCH2 + (M = Fe, Co, Ni) have been measured. Our investigation of NiCH2 + represents the first reported spectroscopic study of this molecule. A spectroscopic threshold is observed for each of the three systems. In addition to imposing strict upper limits on the M+-CH2 bond strengths, these results further the discussion concerning the interpretation of spectroscopic thresholds as thermodynamic limits. The measured upper limits are: D 0(Fe+-CH2) ≤ 342 ± 2 kJ/mol, D 0(Co+-CH2) ≤ 331 ± 2 kJ/mol, and D 0(Ni+-CH2) ≤ 295 ± 5 kJ/mol. Three distinct, 2-nm-wide peaks are observed in the photofragment spectrum of CoCH2 +, but the spectra lack sharp structure above threshold.

Original languageEnglish
Pages (from-to)2020-2024
Number of pages5
JournalJournal of Physical Chemistry A
Volume104
Issue number10
Publication statusPublished - Mar 16 2000

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Spectroscopy
Thermodynamics
dissociation
Molecules
thresholds
spectroscopy
thermodynamics
molecules

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Husband, J., Aguirre, F., Thompson, C. J., Laperle, C. M., & Metz, R. B. (2000). Photofragment Spectroscopy of FeCH2 +, CoCH2 +, and NiCH2 + near the M+-CH2 Dissociation Threshold. Journal of Physical Chemistry A, 104(10), 2020-2024.

Photofragment Spectroscopy of FeCH2 +, CoCH2 +, and NiCH2 + near the M+-CH2 Dissociation Threshold. / Husband, John; Aguirre, Fernando; Thompson, Christopher J.; Laperle, Christopher M.; Metz, Ricardo B.

In: Journal of Physical Chemistry A, Vol. 104, No. 10, 16.03.2000, p. 2020-2024.

Research output: Contribution to journalArticle

Husband, J, Aguirre, F, Thompson, CJ, Laperle, CM & Metz, RB 2000, 'Photofragment Spectroscopy of FeCH2 +, CoCH2 +, and NiCH2 + near the M+-CH2 Dissociation Threshold', Journal of Physical Chemistry A, vol. 104, no. 10, pp. 2020-2024.
Husband, John ; Aguirre, Fernando ; Thompson, Christopher J. ; Laperle, Christopher M. ; Metz, Ricardo B. / Photofragment Spectroscopy of FeCH2 +, CoCH2 +, and NiCH2 + near the M+-CH2 Dissociation Threshold. In: Journal of Physical Chemistry A. 2000 ; Vol. 104, No. 10. pp. 2020-2024.
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