Question

Define the following terms: 
Ambident nucleophiles

Hint:

Ambident nucleophiles attack via two different atoms (e.g., CN⁻, NO₂⁻).

Answer 1

Step 1: Understanding the term "nucleophile."
A nucleophile is a chemical species that donates an electron pair to an electron-deficient atom, typically a carbon atom, during a chemical reaction. Nucleophiles are often negatively charged or neutral molecules that can form bonds with electrophilic species.

Step 2: Defining ambident nucleophiles.
Ambident nucleophiles are nucleophiles that have two or more atoms that are capable of donating an electron pair to form a bond with an electrophilic atom. These nucleophiles can attack at different sites (often different atoms) in a molecule, leading to different reaction products depending on which atom is involved in the attack.

Step 3: Examples of ambident nucleophiles.
- Cyanide ion (\( CN^- \)): It can attack a carbon atom (C) or a nitrogen atom (N), making it ambident. - Nitrite ion (\( NO_2^- \)): It can attack through either the nitrogen atom (forming a nitro group) or the oxygen atom (forming a nitrito group).

Final Answer: Ambident nucleophiles are nucleophiles that have more than one reactive site (atom) capable of donating an electron pair, leading to different types of reactions depending on which site is attacked.