Why triethylamine is stronger base than pyridine?
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Triethylamine is a stronger base than Pyridine and the ionic form is stablized.
In triethylamine the N atom is sp3 hbridised while in pyridine the N atom is sp2 hybrised.
The sp2 hybrid has larger s-character(33.33%) than sp3 hybrid(25%). Therefore nucleus of Nitrogen atom has stonger attraction for electrons in pyridine that means it is less available for coordination with a protons compared to Et3N electron pair. Thus pyridine is a weak base.
In triethylamine the N atom is sp3 hbridised while in pyridine the N atom is sp2 hybrised.
The sp2 hybrid has larger s-character(33.33%) than sp3 hybrid(25%). Therefore nucleus of Nitrogen atom has stonger attraction for electrons in pyridine that means it is less available for coordination with a protons compared to Et3N electron pair. Thus pyridine is a weak base.
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