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Question
Why does R3P=O exist but R3N=O does not (R = alkyl group)?
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Solution
- N cannot increase its covalency beyond 4 and produces dπ-pπ multiple bonds because it lacks d-orbitals.
- As a result, it doesn't create R3N=O compounds.
- However, P can form dπ-pπ multiple bonds since it has d-orbitals.
- It can create compounds of the type R3P=O and expand its covalency up to 5.
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