Vacuum ultraviolet absorption spectra of solid N2O and CO2 at 53 K
1975; American Institute of Physics; Volume: 63; Issue: 4 Linguagem: Inglês
10.1063/1.431496
ISSN1520-9032
AutoresKevin M. Monahan, William C. Walker,
Tópico(s)Advanced Chemical Physics Studies
ResumoPhotoabsorption spectra of thin films of solid N2O and CO2 were obtained in the 105–240 nm wavelength region. The gas phase absorption continua were shifted by as much as 0.53 eV in the solid. Dipole forbidden transitions such as N2O(1Δ←1Σ+), CO2(1Δu←1Σ+g), and CO2(1Πg←1Σ+g) were intensified. The spin forbidden N2O(3Σ+←1Σ+) and N2O(3Δ←1Σ+) transitions were not detected even in 30 μm thick films. Dipole allowed transitions such as N2O(1Π←1Σ+), N2O (1Σ+←1Σ+), CO2(1Σ+u←1Σ+g), and CO2 (1Πu←1Σ+g) became diffuse. Just below the CO2 (1Σ+u←1Σ+g) absorption edge, an exciton peak was observed at 10.73 eV.
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