Temperature dependence of vibrational energy transfer between vibrationally excited polyatomic molecules and bath gases
作者： G.A. Zalesskaya , D.L. Yakovlev , E.G. Sambor
DOI: 10.1016/S0009-2614(00)00815-0
关键词: Dipole 、 Molecule 、 Atomic physics 、 Benzophenone 、 Relaxation (NMR) 、 Chemistry 、 Polarizability 、 Negative temperature 、 Excited state 、 Polyatomic ion
摘要: Abstract Efficiency of vibrational energy transfer (VET) in quasicontinuum triplet states was estimated from the dependence time-resolved delayed fluorescence benzophenone and anthraquinone on bath gas pressure. The negative temperature for vibration–vibration (V–V) positive vibration–translation (V–T) transfers to gases (C 2 H 4 , SF 6 CCl C 5 12 ) were obtained between 373 553 K. Polarizability dipole moment colliding molecules seem affect efficiency V–V relaxation. These data reflect dominance long-range attractive interactions short-range repulsive V–T transfer.
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