邻苯二酚第一激发态寿命的反常行为
Unusual behavior in the first excited state lifetime of catechol
摘要：
我们提出了振动选择性泵探测测量的第一电子激发态（PP*）的寿命喷射冷却中性邻苯二酚（1，2-二羟基苯）。0-0跃迁的寿命非常短（7 ps），这是由计算出的小pp*/psigma* 间隙合理化的。然而，意味着更高的面外振动能级的寿命更长（~11 ps）。这强调了pp*/psigma* 耦合中的面外振动不仅在其性质上而且在量子数上的作用
英文摘要：
We are presenting vibrationally selective pump-probe measurements of the first electronic excited-state (pp*) lifetime of jet-cooled neutral catechol (1,2-dihydroxybenzene). The lifetime of the 0-0 transition is very short (7 ps) as rationalized by the small pp*/psigma* gap calculated. However the lifetimes implying higher out-of-plane vibrational levels are longer (~11 ps). This emphasizes the role of the out-of-plane vibration in the pp*/psigma* coupling not only in its nature but also in the number of quanta
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