COMMUNICATIONS TO THE EDITOR
2485
bonds. 3, * Apparently, the medium-pressure lamp emits radiation below 2200 8. which can cleave the C-F bond. The mechanism that explains the results with 2537-,k. radiation is314
+ hv(2537 K.)+Hg* Hg* + CzF4 +Hg + 2CFz CFz + CzF4 + c - C ~ F ~ Hg
2CF2 +CzF4
(1) (2)
(3)
(4)
When higher-energy radiation is also present, then CzF4
A.)+C2F3 + F
-I- h~(
