1608 K
34 pp.
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TitleReactive Collisions in Crossed Molecular Beams
Author(s)Herschbach, D. R.
Publication DateFebruary 1962
Report NumberUCRL-10096
Unique IdentifierACC0296
Other NumbersOSTI ID: 4734366
Research OrgUniversity of California, Lawrence Radiation Laboratory, Berkeley, CA
Contract NoW-7405-eng-48
Sponsoring OrgUS Atomic Energy Commission (AEC)
Other InformationDiscussions Faraday Society; No. 33
SubjectPhysics; Angular Distribution; Anisotropy; Beams; Carbon Hydrides; Cesium; Collisions; Distribution; Energy; Excitation; Interactions; Methane; Molecules; Motion; Potassium; Recoils; Rubidium; Vectors; Velocity
Related Web PagesDudley Herschbach: Chemical Reactions and Molecular Beams
AbstractThe distribution of velocity vectors of reaction products is discussed with emphasis on the restrictions imposed by the conservation laws. The recoil velocity that carries the products away from the center of mass shows how the energy of reaction is divided between internal excitation and translation. Similarly, the angular distributions, as viewed from the center of mass, reflect the partitioning of the total angular momentum between angular momenta of individual molecules and orbital angular momentum associated with their relative motion. Crossed-beam studies of several reactions of the type M + RI yields R + MI are described, where M = K, Rb, Cs, and R = CH{sub 3}, C{sub 3}H{sub 5}, etc. The results show that most of the energy of reaction goes into internal excitation of the products and that the angular distribution is quite anisotropic, with most of the MI recoiling backward (and R forward) with respect to the incoming K beam. (auth)
1608 K
34 pp.
View Document 

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