what do you mean by delocalisation of pi electrons

Asked by HEMAPRIYA | 6th Mar, 2011, 01:50: AM

Expert Answer:

Dear Student
 For example in benzene molecule we draw pi bonds alternately, C-C and C=C. But all C-C bonds are the same length because the pi bonds are the pi-electrons are actually delocalised over all the 6 carbon atoms. The same is true in 1,3-Pentadiene molecule.  But in 1,4-Pentadiene molecule, C=C-C-C=C, their occurs no delocalisation.  For delocalisation to take place, -C=C-C=C- type structures are required.

We hope that clarifies your query.

Answered by  | 6th Mar, 2011, 10:35: AM

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