Question
The correct most basicity in amines is:
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Answer
The observed order in the case of lower members is found to be as secondary $ > $ primary $ > $ tertiary.
This anomalous behavior of tertiary amines is due to steric factors
i.e. crowding of alkyl groups cover nitrogen atom from all sides and thus makes it unable for protonation.
Thus the relative strength is in order $\ce{CH_3NH_{2 }< (CH_3)_2NH > (CH_3)_3N}$
This anomalous behavior of tertiary amines is due to steric factors
i.e. crowding of alkyl groups cover nitrogen atom from all sides and thus makes it unable for protonation.
Thus the relative strength is in order $\ce{CH_3NH_{2 }< (CH_3)_2NH > (CH_3)_3N}$
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