4. Carbenes

Carbenes :- Carbenes are defined as The neutral species containing a divalent carbon atom having a sextet of electrons but no charge on it .

For Example : 1. Methyl Carbene , 2. Dichloro carbene .

These are highly reactive species .

• When the two electrons on the carbon atom are paired , then it is called a Singlet Carbene .

• When the two electrons on the carbon atom are unpaired , then it is called a Triplet Carbene .

Structures :- 

Singlet Carbenes : Singlet Carbenes have their carbon in sp² hybridised state . Out of the three sp² hybrid orbitals , two are used in forming two single bonds with monovalet atoms or group attached to carbon . The unshared pair of electrons is present in the third sp² hybrid orbitals and the unhybridised p-orbital is empty .

Triplet Carbene : triplet carbene has its carbon in sp hybridised state . The two sp hybrid orbitals from two bonds with monovalent atoms or groups attached to carbon . The two unhybridised p-orbitals contain 1 electron each .

This article was about Carbenes (A part of Reactive Intermediates ) . Hope it was helpful to you and you liked it . 

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