Accession Number:

AD0256499

Title:

THE INFRARED SPECTRA OF THICK FILMS OF CO2 AND CO2+H2O AT LOW TEMPERATURES

Descriptive Note:

Corporate Author:

MELLON INST PITTSBURGH PA

Report Date:

1961-05-01

Pagination or Media Count:

1.0

Abstract:

High resolution infrared absorption studies on thick films of CO2 and of dilute solid solutions of H2O in CO2 have been made at 53 and 4 K. A spectroscopically observable complex between CO2 and H2O is not formed. The isolation of H2O in the CO2 matrix at 53 K is quite good. Monomer and dimer absorptions have been assigned in the 11600 to 11650 cm region. In very thick films of pure CO2 nu1 appears, weakly, at 53 K. In samples deposited at 4 K the nu1 absorption is markedly intensified, probably because of an increased number of crystal imperfections, and 2nu2 is also observed. Similar systems of lattice vibrations have been observed in combination with both nu2 and nu3. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE