SPEED-DEPENDENCE OF ROTATIONAL RELAXATION TIMES
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Date
1979
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Ohio State University
Abstract
In most molecular systems, rotational relaxation rates are a strong function of the speed of absorber molecules in a monitored population. This speed-dependence contains information about the interaction potential. A new method of coupling Doppler and wall-broadening effects to a speed-dependent rotational relaxation rate is described which allows the speed-dependence to be extracted from the non-exponentiality of transient decays. Experimental results from $T_{2}$ decays of $NH_{3}, OCS, CH_{3}Cl, HCOH$, and other systems are described.
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