Measurements of Molecular g Values, Magnetic Susceptibility Anisotropics, and Quadrupole Moments for the Acetylene-HCl Complex

W. G. Read, J. A. Shea, E. J. Campbell, S. G. Kukolich

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Rotational transitions for acetylene-HCl were measured in magnetic fields of 28 and 30 kG using a pulsed-nozzle, Fourier transform microwave spectrometer. Measured molecular g values are gaa = 0.0519 (5), gbb = -0.0006 (2), and gcc-0.0025 (2). Susceptibility anisotropies are 2Xaa-Xbb-Xcc = 0.08 (4) X 10-9 and 2Xbb-Xcc -Xaa = -1.14 (8) X 10-9 MHz/G2. Molecular quadrupole moments for the complex are Qaa = -2.6 (3), Qbb = 6.2 (3), and Qcc = -3.7 (3) X 10-26 esu cm2. We find that the molecular g value for acetylene is positive, g = 0.044 (1). The molecular quadrupole moment of acetylene is found to be 8.0 (16) X 10-26 esu cm2 in good agreement with calculated values.

Original languageEnglish (US)
Pages (from-to)6423-6426
Number of pages4
JournalJournal of the American Chemical Society
Volume105
Issue number21
DOIs
StatePublished - Oct 1983

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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