Observation of l-dependent rate constants for ion production in Rydberg electron transfer reactions

Journal Article · Wed Mar 01 00:00:00 EST 1989 · J. Chem. Phys.; (United States)

OSTI ID:6549703

Carman, Jr, H S; Klots, C E; Compton, R N

Relative rate constants for negative ion production have been measured for the Rydberg electron transfer reactions Cs**(ns,np,nd) +SF/sub 6/..-->..Cs/sup +/+SF/sup -//sub 6/ and Cs**(ns,np,nd) +CCl/sub 4/..-->..Cs/sup +/+Cl/sup -/+CCl/sub 3/. We find that rate constant for production of Cl/sup -/ from CCl/sub 4/ are dependent upon the angular momentum of the Rydberg electron, with k/sub n//sub d/>k/sub n//sub s/ for values of n as large as 40. Preliminary measurements for potassium (ns,nd) Rydberg atoms show that the l dependence for K is much smaller than that for Cs. These results are inconsistent with the ''free electron model'' used to describe these reactions. It is suggested that the observed l dependence is related to postattachment interactions with the Rydberg atom core which affect the survival of the Cl/sup -/ ions.

• Research Organization: Chemical Physics Section, Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6125
• OSTI ID: 6549703
• Journal Information: J. Chem. Phys.; (United States), Vol. 90:5
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON TETRACHLORIDE
CHEMICAL REACTION KINETICS
CESIUM
RYDBERG STATES
SULFUR FLUORIDES
ANGULAR MOMENTUM
ATOM-MOLECULE COLLISIONS
CHARGE EXCHANGE
ELECTRON TRANSFER
IONIZATION
ALKALI METALS
ATOM COLLISIONS
CHLORINATED ALIPHATIC HYDROCARBONS
COLLISIONS
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
KINETICS
METALS
MOLECULE COLLISIONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
REACTION KINETICS
SULFUR COMPOUNDS
400201* - Chemical & Physicochemical Properties