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Muonium chemistry: kinetics of the gas phase reaction Mu + F2 → MuF + F from 300 to 400 K

✍ Scribed by David M. Garner; Donald G. Fleming; Jesse H. Brewer

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
536 KB
Volume
55
Category
Article
ISSN
0009-2614

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✦ Synopsis

The MSR imuonium spin rotation) technique was used to measure the chemical reaction rate for Mu + F2 -+ MuF+ F in N2 moderator at =l atm from 295 to 383 K giving the Arrhenius expression: log10 k (Q/mole s) = (10.83 f 0.20) -(200 + 50)/T. with k = (I.46 k 0.11) X 1O'O E/mole sat 300 K. This is at least 6.8 times the room temperature rate constant for the analogous H atom reaction. The measured activation ecergy and enhancement over the H reaction rate are indicative of significant tunnelling in the Mu reaction, in agreement with the recent collinear quantum mechanical calculations of Connor et al.

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