Shristy posted an Question
July 26, 2020 • 17:01 pm 30 points
  • IIT JAM
  • Chemistry (CY)

What is persistant radicals and captodative effect ??

2 Answer(s) Answer Now
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  • Suman Kumar

    The captodative effect is the stabilization of radicals by a synergistic effect of an electron-withdrawing substituent and an electron-donating substituent.

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    Priyanshu kumar Best Answer

    Both EDG and EWG have a stabilising effect on radical intermediates..this is called captodative effect

    cropped4792155874757099407.jpg
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    There is enhanced resonance due to captodative effect

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    got shristy??

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    sir but generally ERG increase the stability of radicals??

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    In captodative effect both EDG and ERG increases stability due to increase in resonance

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    Then give some examples of erg and ewd of radicals ...

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    shristy see the attached image above see how radical is stabilised

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    any doubt shristy??

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    Priyanshu kumar best-answer

    Radical which are more stable is called persistent radicals..

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    see some examples of persistent radicals

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