Radiation chemistry primary steps

It was not possible to observe radiation at 7620 A. However, the rapid removal of 02(1S9+) by ozone (Sect. V-B-l) would reduce its concentration below the limits of detectability even if it were produced in the primary step. Thus, if a singlet molecule is, indeed, produced in the primary step (14), then for A = 2537 A it is probably in the 12g+ state. This matter will be discussed further in connection with atmospheric chemistry (Sect. VI). 

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