Relaxation Processes. Radiative Lifetimes and Quenching Rates

10 Relaxation Processes. Radiative Lifetimes and Quenching Rates [Pg.191]

The notation used for NH2 in the excited state is related to a linear molecule [Pg.191]

Relaxation of NH2 in the State A A.,(0,V2,0). Radiative lifetime and quenching of the A Ai state of NH2 were investigated by time-resolved laser-induced fluorescence (LIF) [1 to 5] or fluorescence from NH2(A Ai) formed by UV photolysis of NH3 [6 to 8]. The zero-pressure lifetime Tq and the quenching rate constant (in cm -molecule were determined for the 80,3, 4q,4, and 60,5 rotational levels of the A At(0,9,0) state for a variety of quenching gases [5] [Pg.191]

The quenching rate constant of A Ai(0,9,0)q by helium was found to increase monotoni-cally from 2xi0 to 7xio cm molecule s with increasing rotational quantum [Pg.191]

Zero-Pressure Lifetimes Tq and Quenching Rate Constants kq (in [Pg.191]

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