Determination of hybridisation at different carbon atoms Assignment Help

Assignment Help: >> Hybridisation in Organic Compounds >> Determination of hybridisation at different carbon atoms

Determination of hybridisation at different carbon atoms : It can be done by two methods,

            (i) First method : In that process hybridisation can be know by the number of  bonds present on that particular atom

Number of p- bond/s

0

1

2

Type of hybridisation

sp3

sp2

sp

Examples :

         675_determination of hybridisation.png

  •      In diamond carbon is sp3 hybridised and in graphite carbon is sp2 hybridised.

         (ii) Second method : (Electron pair process)

         ep = bp + lp;  where ep = electron pair present in hybrid orbitals ,  bp = bond pair shown in hybrid orbitals

            Number of bp = Number of molecules attached to the central atom of the species

 

1928_determination of hybridisation1.png

1145_determination of hybridisation2.png

         Number of lp's can be calculated as given,

         (a) If carbon has - bonds or positive charge or odd electron, than lp on carbon will be zero.

         (b) If carbon has negative charge, then lp will be same to one.

         Number of electron pairs (ep) defines the type of hybridisation as follows,

Ep

2

3

4

5

6

Type of hybridisation

sp

sp2

sp3

sp3d

sp3d2

         Example :

1476_determination of hybridisation3.png

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