CBSE Class 11-science Answered
what is meant by delocalisation of pi electrons?
will delocalisation occur for every pi electrons?
Asked by ahammedirshad00 | 20 Jan, 2015, 06:30: PM
Expert Answer
- Delocalised electrons are those electrons which spread across more than one atom. Usually electrons in materials are bound to one atom, and atoms are held together by the interactions of the charges on different atoms. In some cases, electrons can be shared between atoms, and are then called delocalised.
- In the case of hydrocarbons, delocalisation occurs in Benzene rings, where a hexagon of six carbon atoms has delocalised electrons spread over the whole ring. In metals, electrons are delocalised over the whole crystal structure, and carry currents - the outer electrons of the metal atoms are shared in an electron sea, and are not confined to particular atoms.
- Delocalisation occurs for those pi electrons where there is adjacent sigma bond.
Answered by Prachi Sawant | 21 Jan, 2015, 10:55: AM
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