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Dynamics of Rydberg electron transfe...

Liu, Yi.

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Dynamics of Rydberg electron transfer to acetonitrile: Velocity-dependent studies.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Dynamics of Rydberg electron transfer to acetonitrile: Velocity-dependent studies./
作者:	Liu, Yi.
面頁冊數:	60 p.
附註:	Source: Masters Abstracts International, Volume: 43-06, page: 2257.
Contained By:	Masters Abstracts International43-06.
標題:	Physics, Atomic. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1426006
ISBN:	054205163X

Dynamics of Rydberg electron transfer to acetonitrile: Velocity-dependent studies.
Liu, Yi.

Dynamics of Rydberg electron transfer to acetonitrile: Velocity-dependent studies. - 60 p.

Source: Masters Abstracts International, Volume: 43-06, page: 2257.

Thesis (M.S.)--Rice University, 2005.

Collisions between atoms in high Rydberg states and polar targets can lead to the formation of dipole-bound negative ions. We examine the dynamics of CH3CN- ion production through electron transfer in K(np)/CH3CN collisions using velocity selected Rydberg atoms. The CH3CN- ion formation rate decreases markedly with decreasing Rydberg atom velocity, principally as a consequence of postattachment electrostatic interactions between the product ions. Implemented using Monte Carlo techniques, a curve-crossing model, which considers the effect of crossings between the diabetic potential curves for the covalent K(np)/CH3CN system and the K+/CH3CN - system, provides a clear explanation of several characteristics seen in electron transfer in K(np)/CH3CN collisions including: the n dependence in the CH3CN- ion production rate, the velocity dependence in the CH3CN- ion production rate, and the relatively small rate constant &sim;0.5 - 1.0 x 10-8cm3 s-1 for production of long-lived CH3CN - ions.

ISBN: 054205163XSubjects--Topical Terms:

1029235
Physics, Atomic.

Dynamics of Rydberg electron transfer to acetonitrile: Velocity-dependent studies.
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502 $a Thesis (M.S.)--Rice University, 2005.
520 $a Collisions between atoms in high Rydberg states and polar targets can lead to the formation of dipole-bound negative ions. We examine the dynamics of CH3CN- ion production through electron transfer in K(np)/CH3CN collisions using velocity selected Rydberg atoms. The CH3CN- ion formation rate decreases markedly with decreasing Rydberg atom velocity, principally as a consequence of postattachment electrostatic interactions between the product ions. Implemented using Monte Carlo techniques, a curve-crossing model, which considers the effect of crossings between the diabetic potential curves for the covalent K(np)/CH3CN system and the K+/CH3CN - system, provides a clear explanation of several characteristics seen in electron transfer in K(np)/CH3CN collisions including: the n dependence in the CH3CN- ion production rate, the velocity dependence in the CH3CN- ion production rate, and the relatively small rate constant &sim;0.5 - 1.0 x 10-8cm3 s-1 for production of long-lived CH3CN - ions.
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