Solution Found!
In most amines, the nitrogen atom is sp3 hybridized, with
Chapter 23, Problem 29SP(choose chapter or problem)
In most amines, the nitrogen atom is \(s p^{3}\) hybridized, with a pyramidal structure and bond angles close to \(109^{\circ}\). In urea, both nitrogen atoms are found to be planar, with bond angles close to \(120^{\circ}\). Explain this surprising finding. (Hint: Consider resonance forms and the overlap needed in them.)
Equation Transcription:
Text Transcription:
sp^3
109^o
120^o
H_{2}ddot{N}-C-ddot{N}H_2
Questions & Answers
QUESTION:
In most amines, the nitrogen atom is \(s p^{3}\) hybridized, with a pyramidal structure and bond angles close to \(109^{\circ}\). In urea, both nitrogen atoms are found to be planar, with bond angles close to \(120^{\circ}\). Explain this surprising finding. (Hint: Consider resonance forms and the overlap needed in them.)
Equation Transcription:
Text Transcription:
sp^3
109^o
120^o
H_{2}ddot{N}-C-ddot{N}H_2
ANSWER:
Solution 29SP
The resonance structure of formamide can be written as -