VIBRATIONAL-ENERGY TRANSFER AND QUENCHING OF OH(A2-SIGMA-+,V'=1)
VIBRATIONAL-ENERGY TRANSFER AND QUENCHING OF OH(A2-SIGMA-+,V'=1)
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DOI：
10.1021/j100331a033
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发表时间：
1988-10-06
影响因子：
--
通讯作者：
CROSLEY, DR
中科院分区：
文献类型：
--
作者：
COPELAND, RA;WISE, ML;CROSLEY, DR
本文用时间分辨和波长分辨的激光诱导荧光研究了室温流动体系中的碰撞振动能量转移（VET）和（2+，>-1）的电子猝灭。总的移除截面很大，为30-120 × 2，并且通常随着转动量子数的增加而减小，这表明各向异性长程吸引力的重要性。研究的对撞机分为三类：极性分子H20和NH3，有效的猝灭剂，但在VET无效;以及N2、SF6和CF 4，无效的猝灭剂，但在VET有效。0经历了VET与N2对撞机是热的比周围的气体温度，并出现像一个约750 K的热分布。
Collisional vibrational energy transfer (VET),'= 1—0, andelectronic quenching of (2+,>-1) are studied using time-and wavelength-resolved laser-induced fluorescence in a room-temperature flow system. Total removal cross sections are large, 30-120 Á2, and generally decrease with increasing rotational quantum number, indicating the importance of anisotropic long-range attractive forces. The colliders studied fall intothree categories: polar molecules H20 and NH3, efficient quenchers but ineffective at VET; C02, CH4, and N20, similar cross sections for each process; and N2, SF6, and CF4, inefficient quenchers but efficient at VET. The rotational distribution forOH molecules within'= 0 that have undergone VET with N2 collider is hotter than the surrounding gas temperature and appears like an approximately 750 K thermal distribution.