Frequency and intensity measurements on the quadrupole spectrum of molecular hydrogen

Uwe Fink, T. A. Wiggins, D. H. Rank

Research output: Contribution to journalArticle

82 Scopus citations

Abstract

The quadrupole spectrum of molecular hydrogen has been investigated with spectroscopic instruments of high resolution and a large 44-meter multiple reflection absorption cell. The frequencies of seven lines in the 1-0 band and two lines in the 2-0 band were measured. Pressure shifts were obtained for five lines in the 1-0 band. These data were used to obtain precise molecular constants for the first few vibrational states. Intensity measurements on the lines of the 1-0 and 2-0 bands and the S(1) line of the 3-0 band were made and corrected by means of an empirical curve of growth. These measurements are compared with theoretical calculations of the hydrogen quadrupole matrix element.

Original languageEnglish (US)
Pages (from-to)384-395
Number of pages12
JournalJournal of Molecular Spectroscopy
Volume18
Issue number4
DOIs
StatePublished - Dec 1965

ASJC Scopus subject areas

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

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