Abstract:The quenching rates of NO(B 2Π, v′=9) have been measured for He, H2, CO, CF4, N2, and CO2, relative to NO self-quenching rate, by noting the reduction in fluorescence intensity of the β (v′=9) bands. The values obtained are 1.0:0.12:0.13:0.13:0.14:0.17:0.18 for NO, He, H2, CO, CF4, N2, and CO2. Absolute quenching rates are also estimated to be close to hard-sphere collision rate constants and the quantum yield of the β (v′=9) emission to be of the order of 10−2.
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