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Why does NO+ have a triple bond?

ecoli
in Inorganic Chemistry

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but then the octet rule wouldn't be satisfied.

 

N-O

 

nitrogen would have 2 lone pairs and the bond, so effectively 6 electrons. oxygen would have effectively 7 electrons.

The best way to do it is with molecular orbital thory, if u look at O and N+ O has 2 electrons in 2s and 4 in 2p, and N+ has 2 is 2s and 2 in 2p. When the orbitals combine the s orbitals combine to form an antibonding and binding orbitals, so cancel out.

The total 6 p electrons combine to form 3 bonding orbitals, with the 3 antibonding orbitals left empty.

Gives a bond order of 3, --> triple bond.

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