An investigation of electron attachment to perfluorobenzene at subthermal energies using K(nd) Rydberg atoms is reported. The data indicate that electron capture occurs through two channels, one resulting in formation of long‐lived C6F6 ions, the other yielding C6F6 ions that undergo rapid autodetachment. The data are compared to results obtained in free‐electron studies using swarm and threshold photoelectron spectroscopy techniques.

1.
S. M.
Spyrou
and
L. O.
Christophorou
,
J. Chem. Phys.
82
,
1048
(
1985
).
2.
N. G.
Adams
,
D.
Smith
,
E.
Alge
, and
J.
Burdon
,
Chem. Phys. Lett.
116
,
460
(
1985
).
3.
K. S.
Gant
and
L. G.
Christophorou
,
J. Chem. Phys.
65
,
2977
(
1976
).
4.
W. E.
Wentworth
,
T.
Limero
, and
E. C. M.
Chen
,
J. Phys. Chem.
91
,
241
(
1987
).
5.
A.
Chutjian
and
S. H.
Alajajian
,
J. Phys. B
18
,
4159
(
1985
).
6.
F. B.
Dunning
,
J. Phys. Chem.
91
,
2244
(
1987
).
7.
For a discussion of the essentially free electron model see the articles by M. Matsuzawa and by A. P. Hickman, R. E. Olson, and J. Pascale, in Rydberg States of Atoms and Molecules, edited by R. F. Stebbings and F. B. Dunning (Cambridge University, New York, 1983).
8.
C. W.
Walter
,
C. B.
Johnson
,
A.
Kakmarides
,
D. F.
Gray
,
K. A.
Smith
, and
F. B.
Dunning
,
J. Phys. Chem.
91
,
4284
(
1987
).
9.
R. W. Marawar, C. W. Walter, K. A. Smith, and F. B. Dunning, J. Chem. Phys. (in press).
10.
Free electron production was previously noted in Xe(nf)−C6F6 collisions,
G. F.
Hildebrandt
,
F. G.
Kellert
,
F. B.
Dunning
,
K. A.
Smith
, and
R. F.
Stebbings
,
J. Chem. Phys.
68
,
1349
(
1978
).
11.
L. G.
Christophorou
,
Adv. Electron. Electron. Phys.
46
,
55
(
1978
).
12.
A.
Chutjian
and
S. H.
Alajajian
,
Phys. Rev. A
31
,
2885
(
1985
).
This content is only available via PDF.
You do not currently have access to this content.