Environmental Engineering Reference
In-Depth Information
Figure 2.22
Parameters of excimer molecules.
Figure 2.23
The behavior of the electronic states of the quasimolecule in the case of the har-
poon reaction.
proach in the collision. As a result, the cross section for this type of collision is
much larger than that for an ordinary gas-kinetic collision.
One can demonstrate this process by the example
Ar(
3
P
1
)
Ar
Cl
C
Cl
2
!
C
Cl .
(2.94)
We first compare the two electronic states Ar
C
Cl
2
at large dis-
tances between the colliding particles. The first state is of lower energy than the
second at large distances by the amount
J
Cl
2
and Ar
C
C
EA
D
1.7 eV, where
J
D
4.14 eV is