Abstract
In this work the deexcitation of the B 3Π +( O u +), v′ = 14 level of I 2 after pulsed laser excitation has been studied. The quenching cross sections by collisions with I 2, H 2, CO, and CH 4 have been measured. The experimental results are 190 ± 14, 2.5 ± 0.3, 15.1 ± 0.4, and 18.0 ± 0.6 Å 2, respectively. These values are compatible (within 30%) with the semiempirical scaling law of proportionality with the product of polarizability and the square root of reduced mass.
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