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Anuradha posted an Question
July 16, 2020 • 06:30 am 30 points
  • IIT JAM
  • Chemistry (CY)

22 the anti-aromatic compound among the following is 2 4. 3. singlet carbene 2

22 The anti-aromatic compound among the following is 2 4. 3. Singlet carbene 2

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    Ashutosh singh

    Dear Anuradha, I didn't know that question was MSQ so, as soon as I saw one option, I hopped on to it, I'm sorry.

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    ok sir 👍 thanks

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    see this.

  • comment-profile-img>
    Priyanshu kumar best-answer

    compound 1st is also anti aromatic anuradha

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    can you explain please?

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    it belongs to 4n pi electrons category and electron is delocalised so it is antiaromatic

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    if electrons is not delocalised and it belongs to 4n pi electrons category then it is non aromatic

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    4n pi electrons are anti aromatic.

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    yes sir see i have written this

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    You have written non aromatic. Non aromatic are different, sir!

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    B is also anti aromatic here.

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    I didn't realize that question was MSQ, my bad.

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    sir ,i have differentiate the two categories ..if localised and 4n pi electrons...then AA if not delocalised then 4n pi electrons then NA...

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    Anuradha Bhogaonkar

    and I am some time make mistakes in singlet and triplets carbene...its little bit tough for me

  • comment-profile-img>
    Ashutosh singh Best Answer

    The 4th one is anti-aromatic with only 4 pi electrons.

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    Do you get how Anuradha?

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    can you please explain me first 3 options 🙏

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    Give me 5 mins, let me show you that on paper.

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    ok

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