Violet emission spectra of CN(B2.SIGMA.) produced in the photodissociation of HCN and DCN.

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概要

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• Emission spectra of the CN violet band system (B<SUP>2</SUP>Σ-X<SUP>2</SUP>Σ, Δυ=0) produced in the photodissociation of HCN and DCN by Lyman-α radiation (121.6 nm) were observed with resolution of about 0.2 nm and with sample pressures of 0.01–1.5 Torr. The spectral features of the two were similar, but the main peaks (υ′=0–4) from DCN appeared more sharply than the corresponding peaks from HCN. The relative vibrational populations and the effective rotational temperatures were estimated by a band-envelope analysis. No indication of vibrational population inversion was observed. The CN(B<SUP>2</SUP>Σ) radical produced from DCN is likely to have slightly higher vibrational (0.31±0.08 eV) measured from the zero-point energy) and rotational energies (0.15±0.02 eV) than that from HCN (0.23±0.08 and 0.11±0.02 eV, respectively).

• 公益社団法人 日本化学会の論文

著者

• Tatematsu Setsuko

  Department of Chemistry, Faculty of Science, The University of Tokyo

関連論文

• Violet emission bands of the CN radical produced by photodissociation of BrCN.
• Violet emission spectra of CN(B2.SIGMA.) produced in the photodissociation of HCN and DCN.

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