Photoionization of a diatomic molecule produces a singly charged cation. For the

Question

Photoionization of a diatomic molecule produces a singly charged cation. For the molecules listed below, calculate the bond order of the neutral molecule and the lowest energy cation. For which molecules do you expect the n"=0 rightarrow n'=l vibrational peak to have a higher intensity than the n"= 0 rightarrow n'= 0 vibrational peak? The term n " refers to the vibrational quantum number in the ground state, and the term n' refers to the vibrational quantum number in the excited state, a) H_2 b) 0_2 c) F_2 d) NO

Explanation / Answer

a. Bond order of H2: 0

b. Bond order of O2: 2

c. Bond order of F2: 1

d. Bond order of NO: 2.5

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