Yes, the amino group (NH2) can be either an electron-donating or electron-withdrawing group, depending on the context.
When attached to an aliphatic carbon: In this case, NH2 is generally considered a strong electron-donating%20group due to the lone pair of electrons on the nitrogen atom. It donates electrons through inductive%20effect (+I effect) and resonance%20effect (+M effect). The +M effect is usually stronger.
When attached to an aromatic ring: When directly attached to an aromatic%20ring (like in aniline), NH2 is a strong activating%20group and ortho, para-directing. It donates electron density into the ring through resonance, making the ring more nucleophilic and susceptible to electrophilic attack. While nitrogen is more electronegative than carbon, the lone pair on the nitrogen can participate in resonance, causing it to donate electron density to the ring.
Protonated form: If the amino group is protonated (NH3+), it becomes a strong electron-withdrawing%20group due to the positive charge on the nitrogen. In this case, it withdraws electron density inductively (-I effect).
Ne Demek sitesindeki bilgiler kullanıcılar vasıtasıyla veya otomatik oluşturulmuştur. Buradaki bilgilerin doğru olduğu garanti edilmez. Düzeltilmesi gereken bilgi olduğunu düşünüyorsanız bizimle iletişime geçiniz. Her türlü görüş, destek ve önerileriniz için iletisim@nedemek.page