Madhu posted an Question
June 04, 2020 • 00:29 am 5 points
  • IIT JAM
  • Chemistry (CY)

Which of the following compound has two differentc - c bond lengths 2) 4) ch, = ch-ch

Which of the following compound has two differentC - C bond lengths 2) 4) CH, = CH-CH

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  • Suman Kumar best-answer

    See the structure of cyclooctatetraene while rest have planar structure

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    Please mark thankyou 🙏 madhu

  • Suman Kumar Best Answer

    Cyclooctatetraene has two types of c-c bond length. Due to delocalization of double bond in benzene, cyclopropyl cation and propyl cation they have all c-c bond length same. In cyclooctatetraene there is no delocalization because delocalization will cause anti aromaticity- less stable. So it acquires non planar structure.

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