NORMAL COORDINATE ANALYSES OF TRIMETHYLARSINE SULFIDE AND TRIMETHYLARSINE SELENIDE Academic Article uri icon

abstract

  • The infrared and Raman spectra of trimethylarsine sulfide, trimethylarsine selenide, and their perdeuterated analogues have been recorded. An assignment of 22 of the 24 fundamental vibrational frequencies (exclusive of the methyl torsions) has been made for each molecule. Assignments were made on the basis of symmetry selection rules and comparison with structurally similar molecules. A normal coordinate analysis for each of these molecules was carried out to reinforce the assignments. Assuming a valence force field for each molecule of C3v symmetry, a set of 24 force constants was refined to give a least squares fit of the calculated frequencies to the observed frequencies. Calculations of the potential energy distribution for each molecule show that there exists little coupling between the different modes. 1973.

published proceedings

  • JOURNAL OF MOLECULAR STRUCTURE

author list (cited authors)

  • KOLAR, F. L., ZINGARO, R. A., & LAANE, J.

citation count

  • 8

complete list of authors

  • KOLAR, FL||ZINGARO, RA||LAANE, J

publication date

  • October 1973