Publication year: 2011 Source: Chemical Physics, Available online 17 September 2011 S.S. Lukashov, S.A. Poretsky, A.M. Pravilov The results of measurements and analysis of excitation spectra of the λlum= 2350 Ǻ luminescence corresponding to I2(D0u→ X0g) transition as well as luminescence at λlum= 3400 Ǻ, where I2(D’2g→A’2uand/or β1g→A1u) transitions occur, observed after three-step, λ1+ λf+ λ1, λ1= 5321 – 5508.2 Ǻ, λf= 10644.0 Ǻ, laser excitation of pure iodine vapour and I2+ Xe mixtures at room temperature are presented. Luminescence spectra in the λlum= 2200 – 3500 Ǻ spectral range are also analyzed. We discuss three alternative mechanisms of optical population of the IP states
Optical population of gerade and ungerade iodine ion-pair states via MI2vdW complexes of valence states correlating with the third dissociation limit,…
Publication year: 2011 Source: Chemical Physics, Available online 17 September 2011 S.S. Lukashov, S.A. Poretsky, A.M. Pravilov The results of measurements and analysis of excitation spectra of the λlum= 2350 Ǻ luminescence corresponding to I2(D0u→ X0g) transition as well as luminescence at λlum= 3400 Ǻ, where I2(D’2g→A’2uand/or β1g→A1u) transitions occur, observed after three-step, λ1+ λf+ λ1, λ1= 5321 – 5508.2 Ǻ, λf= 10644.0 Ǻ, laser excitation of pure iodine vapour and I2+ Xe mixtures at room temperature are presented. Luminescence spectra in the λlum= 2200 – 3500 Ǻ spectral range are also analyzed. We discuss three alternative mechanisms of optical population of the IP states