Lifetime lengthening and the Renner-Teller effect in the HCF (Ã 1A″←X̃1A′) system

Haiyan Fan, Ionela Ionescu, Chris Annesley, Scott A. Reid

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We report new measurements of fluorescence excitation spectra and single rovibronic level fluorescence lifetimes for (0,υ2′ ,0)←(0,0,0) bands with υ2′=0-6 in the HCF Ã1A″←X̃1A′ system. Due primarily to the Renner-Teller interaction, upper state levels with K a≥1 display an obvious lengthening of lifetime with increasing energy which is strongly correlated with the presence of vibronic and rovibronic perturbations, and increases dramatically as the barrier to linearity is approached. This system provides a textbook example of the small molecule limit of radiationless transitions.

Original languageEnglish
Pages (from-to)548-552
Number of pages5
JournalChemical Physics Letters
Volume378
Issue number5-6
DOIs
Publication statusPublished - Sep 12 2003
Externally publishedYes

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Fluorescence
life (durability)
fluorescence
textbooks
Textbooks
linearity
perturbation
Molecules
excitation
molecules
interactions
energy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Lifetime lengthening and the Renner-Teller effect in the HCF (Ã 1A″←X̃1A′) system. / Fan, Haiyan; Ionescu, Ionela; Annesley, Chris; Reid, Scott A.

In: Chemical Physics Letters, Vol. 378, No. 5-6, 12.09.2003, p. 548-552.

Research output: Contribution to journalArticle

Fan, Haiyan ; Ionescu, Ionela ; Annesley, Chris ; Reid, Scott A. / Lifetime lengthening and the Renner-Teller effect in the HCF (Ã 1A″←X̃1A′) system. In: Chemical Physics Letters. 2003 ; Vol. 378, No. 5-6. pp. 548-552.
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