کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9575469 | 1504349 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rare gas-iodine complexes in the ion-pair states
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Luminescence and luminescence excitation spectra in the vicinity of the optical-optical double resonance transitions to the I2(f0g+, vf = 8 and 9, Jf â 55) levels have been measured at the bulb conditions for the I2 + Rg mixtures (Rg = He, Ar, Xe) at the rare gas pressures 2-20 Torr and room temperature. Luminescence attributed to the RgI2 complexes in the f0g+,F0u+andE0g+ ion-pair states has been observed for the first time. It is argued that the complexes can be formed by direct optical excitation from the RgI2(B0u+) complexes or {Rg+I2(B0u+)} colliding pairs. Besides, the RgI2 complexes in the f0g+,F0u+andE0g+ ion-pair states can be formed in nonadiabatic internal conversion processes from the RgI2(f0g+) one. The complexes have rather long lifetime, especially in the case of Xe, and decay radiatively and nonradiatively forming I2 molecules in different ion-pair states.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 310, Issues 1â3, 4 April 2005, Pages 287-295
Journal: Chemical Physics - Volume 310, Issues 1â3, 4 April 2005, Pages 287-295
نویسندگان
M.E. Akopyan, I.Yu. Novikova, S.A. Poretsky, A.M. Pravilov,