Free Radicals :- These are odd electron neutral species which are formed by the homolytic fission of a covalent bond . Free Radicals are paramagnetic in nature due to the presence of unpaired electrons .
Stability :- The order of stability of simple alkyl radicals is as follows :
3° > 2° > 1°
i.e. tertiary alkyl radicals is most stable followed by secondary and primary alkyl radicals.
Structure :- Experimental evidences strongly suggests that the alkyl radicals such as methyl radical , are actually plannar with sp² hybridisation. The three co-plannar hybrid orbitals are used in the formation of three σ bonds with other atoms . The unhybridised orbital which lies in a plane at right angles to the plane of the hybrid orbitals carries the unpaired electrons.
This article was about Free Radicals (A part of Reactive Intermediates) .
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