THE INFRARED SPECTRUM OF SOLID DINITROGEN TETROXIDE
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Date
1956
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Publisher
Ohio State University
Abstract
According to the commonly accepted $V_{h}$ symmetry of the $N_{2}O_{4}$ molecule and the X-ray crystal structure of Broadley and $Robertson^{2}$, present $theory^{3}$ predicts one infrared active component in the crystal for each infrared active fundamental of the gaseous molecule. These components, with one exception, have been observed in polycrystalline films of $N_{2}O_{4}$ at liquid air temperature as sharp bands only slightly shifted from the gas frequencies. The $684 cm^{-1}$ fundamental is apparently too weak to be observed. Additional bands, associated with the fundamentals and some combinations, indicate at least two lattice modes in the frequency range 17 to $24 cm^{-1}$. The spectrum will be discussed along with that of solid $N_{2}O_{4}$ containing about 35 atom % of $N^{15}$.
Description
$^{1}$ Present address: Department of Chemistry, Rutgers University, New Brunswick, New Jersey. $^{2}$ J. S. Broadley and J. M. Robertson, Nature 164, 915 (1949). $^{3}$ D. F. Hornig, J. Chem. Phys. 16, 1063 (1948). H. Winston and R. S. Halford, J. Chem. Phys. 17, 607 (1949).""
Author Institution: Department of Chemistry, University of Pennsylvania
Author Institution: Department of Chemistry, University of Pennsylvania