Question

57. Write the molecular orbital configuration of the following species: O2, O2-, O2+, O22+

i. Calculate their bond order.

ii. Predict their magnetic behavior.

​

Answer 1

Answer:

O2+ is more stable than O2-.

Reason: According to molecular orbital theory O2+has 15 electrons &it has one electron in antibonding orbital.

molecular orbital diagram of  O2+                                                

                                                                                                         

Electronic configuration of O2+

In the case of O2- 17 electrons are present &3 electrons are present in antibonding orbitals. If number of electrons more in antibonding orbital the molecule become unstable.

molecular orbital diagram of O2-

Electronic configuration of O2-

Explanation: