Why does R3P=O exist but R3N=O does not (R = alkyl group)?

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asked Dec 22, 2017 in Chemistry by sforrest072 (157,439 points) 63 448 1264

Why does R3P=O exist but R3N=O does not (R = alkyl group)?

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answered Dec 22, 2017 by mdsamim (213,225 points) 5 10 21
selected Dec 22, 2017 by sforrest072
 
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N (unlike P) lacks the d-orbital. This restricts nitrogen to expand its coordination number
beyond four. Hence, R3N=O does not exist.

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