The Infrared and Raman Spectra of Formaldehyde- d 1 Vapor
1954; American Institute of Physics; Volume: 22; Issue: 2 Linguagem: Inglês
10.1063/1.1740054
ISSN1520-9032
AutoresD. W. Davidson, B. P. Stoicheff, H. J. Bernstein,
Tópico(s)Laser Design and Applications
ResumoThe infrared spectrum of HDCO vapor has been investigated in the region 2.5μ—25μ and all six fundamentals have been observed. Four of the fundamentals have also been observed in the Raman spectrum of the vapor. The perpendicular component of an hybrid band at 3.5μ and the pure rotational Raman spectrum were resolved and analyzed. The rotational constant (A—B̄) for the symmetric top approximation was found to be 5.47±0.03 cm-1. This value, combined with the rotational constants of H2CO obtained by Dieke and Kistiakowsky, yields approximate molecular dimensions for the ground state of formaldehyde.
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