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.
Regards
Team
Topperlearning
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.
Regards
Team
Topperlearning
Answered by | 6th Mar, 2011, 10:35: AM
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