Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

33SO2: Interstellar Identification and Laboratory Measurements

Klisch1, Schilke, Belov

  • 1I. Physikalisches Institut, Universitat zu Koln, Cologne, D-50937, Germany

Journal of Molecular Spectroscopy
|February 3, 1998
PubMed
Summary

This study measured the rotational spectrum of sulfur dioxide (SO2) isotopically substituted with 33S. These measurements refine molecular constants for 33SO2 and identify its presence in interstellar space.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The Rotational Spectrum of SO(2) and the Determination of the Hyperfine Constants and Nuclear Magnetic Shielding Tensors of (33)SO(2) and SO(17)O.

Journal of molecular spectroscopy·2001
Same author

Sub-Doppler Measurements of the Rotational Spectrum of (13)C(16)O.

Journal of molecular spectroscopy·2001
Same author

Submillimeter-Wave Spectroscopy of Phosphaalkynes: HCCCP, NCCP, HCP, and DCP.

Journal of molecular spectroscopy·2001
Same author

Millimeter-Wave Spectra and Global Torsion-Rotation Analysis for the CH(3)OD Isotopomer of Methanol.

Journal of molecular spectroscopy·2000
Same author

The Millimeter- and Submillimeter-Wave Spectrum of HC(3)N in the Ground and Vibrationally Excited States.

Journal of molecular spectroscopy·2000
Same author

Evidence for changing of cosmic ray composition between 10(17) and 10(18) eV from multicomponent measurements

Physical review letters·2000

Area of Science:

  • Astrophysics
  • Molecular Spectroscopy
  • Quantum Chemistry

Background:

  • Sulfur dioxide (SO2) is a key molecule in understanding sulfur chemistry in various environments.
  • Isotopic variants of molecules provide unique insights into chemical processes and physical conditions.
  • Previous spectroscopic data for 33S-substituted SO2 (33SO2) were limited, hindering astrophysical applications.

Purpose of the Study:

  • To measure the rotational spectrum of 33SO2 to high frequencies (up to 1 THz).
  • To refine the molecular constants of 33SO2 through combined analysis of new and existing data.
  • To identify the carrier of previously unassigned interstellar spectral lines.

Main Methods:

  • High-frequency rotational spectroscopy was employed to measure the spectrum of 33SO2.

Related Experiment Videos

  • A comprehensive analysis combined newly acquired data with previously published line frequencies.
  • Spectral line frequencies were predicted with high precision using refined molecular constants.

    • Main Results:

    • The rotational spectrum of 33SO2 was successfully measured up to nearly 1 THz.
    • Refined rotational constants (A, B, C) and centrifugal distortion constants were determined.
    • Six unidentified interstellar lines in the 325-360 GHz band were assigned to 33SO2.

    Conclusions:

    • The precise molecular constants enable accurate frequency predictions for 33SO2.
    • The identification of 33SO2 in interstellar space provides valuable data for astrochemistry.
    • This work enhances our understanding of sulfur-bearing molecules in the interstellar medium.