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Spectroscopic characterization of the AsF2 radical

J. Chem. Phys. 106, 485 (1997); doi:10.1063/1.473389

Issue Date: 8 January 1997

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Jeffrey L. Brum and Jeffrey W. Hudgens
Physical and Chemical Properties Division, Chemical Science and Technology Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
The electronic spectrum of the AsF2 radical was observed between 330 and 380 nm using one-color, mass-resolved, 2+1 resonance enhanced multiphoton ionization (REMPI) spectroscopy. The spectrum arises from two-photon resonances with the F-tilde (T0=54 355±15 cm–1, nu<sub>1</sub><sup>[prime]</sup>=813±6 cm–1, and nu<sub>2</sub><sup>[prime]</sup>=308±5 cm–1) and H-tilde (T0=57 480±15 cm–1, nu<sub>1</sub><sup>[prime]</sup>=810±10 cm–1, and nu<sub>2</sub><sup>[prime]</sup>=310±20 cm–1), Rydberg states. A third photon ionized the radicals. The REMPI spectrum exhibits vibrational hot bands that give spectroscopic constants for AsF2 (X-tilde 2B1) of nu<sub>1</sub><sup>[double-prime]</sup>=705±10 cm–1 and nu<sub>2</sub><sup>[double-prime]</sup>=285±10  cm–1. Solutions of the Rydberg equation indicate that plausible assignments for the F-tilde and H-tilde states are limited to the set of 4d and 5p Rydberg states.©1997 American Institute of Physics.
History: Received 18 April 1994; accepted 30 September 1996
Permalink: http://link.aip.org/link/?JCPSA6/106/485/1
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KEYWORDS and PACS

Keywords
PACS
  • 33.80.Rv
    Molecular properties and interactions with photons Photon interactions with molecules Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states)
  • 33.80.Eh
    Molecular properties and interactions with photons Photon interactions with molecules Autoionization, photoionization, and photodetachment
  • 33.20.Tp
    Molecular properties and interactions with photons Molecular spectra Vibrational analysis
  • 33.15.Mt
    Molecular properties and interactions with photons Properties of molecules and molecular ions Rotation, vibration, and vibrationrotation constants
  • 31.50.+w
    Electronic structure of atoms, molecules and their ions: theory Excited states
  • 33.15.Ta
    Molecular properties and interactions with photons Properties of molecules and molecular ions Mass spectra
  • YEAR: 1996-97

PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
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REFERENCES (16)
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