Spectroscopy of weakly-bound magnesium ion complexes

Chen-Sheng Yeh, J. S. Pilgrim, K. F. Willey, D. L. Robbins, M. A. Duncan

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Weakly bound complexes of the form Mg+-L, (L = CO2, H2O, N2, Ar, etc.) are prepared in a pulsed nozzle/laser vapourization cluster source and studied in the molecular beam environment. The ion complexes are jet cooled and mass selected in a specially designed refiectron time-of-flight mass spectrometer for their study. The mass-selected ions are excited with a tunable dye laser, and the products, if any, from photodissociation are mass analysed and detected as a function of the excitation laser wavelength. This photodissociation spectroscopy experiment reveals the decomposition channels of excited complexes and their absorption spectra. Photodissociation channels vary from simple metal ionligand bond breaking, to metal-to-Iigand charge transfer, to metal insertion/ elimination reactions in the excited state. In reactive systems, the spectra are broad and featureless. However, in systems with simple metal-ligand dissociation, vibrational and partial rotational resolution is obtained in the spectra. The detailed analysis of this structure makes it possible to determine the structures of metal ion complexes and their metal-ligand binding energies.

Original languageEnglish
Pages (from-to)231-262
Number of pages32
JournalInternational Reviews in Physical Chemistry
Volume13
Issue number2
DOIs
Publication statusPublished - 1994 Jan 1

Fingerprint

Photodissociation
Magnesium
magnesium
Metals
Spectroscopy
Ions
photodissociation
metals
spectroscopy
ions
Ligands
Laser excitation
Molecular beams
Dye lasers
Coordination Complexes
Mass spectrometers
Binding energy
ligands
Excited states
Metal ions

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

Cite this

Yeh, Chen-Sheng ; Pilgrim, J. S. ; Willey, K. F. ; Robbins, D. L. ; Duncan, M. A. / Spectroscopy of weakly-bound magnesium ion complexes. In: International Reviews in Physical Chemistry. 1994 ; Vol. 13, No. 2. pp. 231-262.
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Spectroscopy of weakly-bound magnesium ion complexes. / Yeh, Chen-Sheng; Pilgrim, J. S.; Willey, K. F.; Robbins, D. L.; Duncan, M. A.

In: International Reviews in Physical Chemistry, Vol. 13, No. 2, 01.01.1994, p. 231-262.

Research output: Contribution to journalArticle

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