- Neutral bivalent species.
- six electrons in outermost shell.
- 4 – are bonded and 2 are non bonded electrons.
- homolytic cleavage.
- have tendency to accept a pair of electron.
- Types 1. Singlet 2. Triplet
- Singlet Carbene
- sp2 hybridized.
- angular shape.
- 2 non bonded electron present.
- opposite spin.
2. Triplet Carbene
- Sp Hybridized
- linear shape.
- 2 non bonded electron present.
- same spin present.
Triplet carbene is more stable than singlet Carbene due to less repulsion between two non-bonded electrons which are present in two different orbitals.