Question

In: Chemistry

Using the molecular orbital energy ordering for second-row homonuclear diatomic molecules in which the 20 orbitals...


Using the molecular orbital energy ordering for second-row homonuclear diatomic molecules in which the 20 orbitals lie at a l

Using the molecular orbital energy ordering for second-row homonuclear diatomic molecules in which the 20 orbitals lie at a lower energy than the 02p, draw the MO energy diagrams and predict the bond order in a molecule or ion with each number of total valence electrons. Will the molecule or ion be diamagnetic or paramagnetic? a) 6 valence electrons b) 9 valence electrons c) 12 valence electrons

Solutions

Expert Solution

Note that the molecules/ions given are not necessarily homonuclear molecules. They can be heteronuclear molecules as well. Also, they can be cationic or anionic. Please see the attached solution:

The * marked MO's are antibonding in nature, while others are bonding in nature.

If all the elctrons are paired, than the molecule/ion is diamagnetic, else paramagnetic.


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