GOC

correct answer is 5 is the second last structure aromatic if so how?
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45 Replies
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Nimboi
Nimboi3mo ago
I think it is yep The benzene part is aromatic, the cyclohexane part is non-aromatic So the compound as a whole has some aromaticity
cauchyschwartz
cauchyschwartzOP3mo ago
oh i didnt know that was possible will the largest conjugated ring logic work here?
Nimboi
Nimboi3mo ago
I'm assuming it is since the cyclohexane part doesn't "do" anything to the benzene part Like doesn't disrupt its resonance or anything like that what do you mean?
Prachi
Prachi3mo ago
Our teacher told the same thing Aromatic + Non-Aromatic gives aromatic compound Aromatic + Anti-Aromatic gives anti-aromatic compound Anti-Aromatic + Non-Aromatic gives anti-aromatic compound
Nimboi
Nimboi3mo ago
really? interesting I would've thought it'd still be aromatic since aromatic is 4n+2 pi electrons antiaromatic is 4n pi electrons if both are in conjugation you still get 4n+2 pi electrons maybe it loses planarity or something
cauchyschwartz
cauchyschwartzOP3mo ago
so with that logic this should be anti aromatic
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cauchyschwartz
cauchyschwartzOP3mo ago
a method i was taught to check aromaticity of structure like annulene
Nimboi
Nimboi3mo ago
I think so yea
Opt
Opt3mo ago
Depends on how they're connected Wrong message reply. I meant to reply to the next one.
Nimboi
Nimboi3mo ago
yeah makes sense
cauchyschwartz
cauchyschwartzOP3mo ago
thanks guys
riddle
riddle3mo ago
its aromatic bruh this is bs dont memorise oc use fused ring rule don't memorise such bs
Emiya
Emiya3mo ago
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Emiya
Emiya3mo ago
Is this aromatic?
Opt
Opt3mo ago
I'm pretty sure it is. The continuous conjugation condition always throws me off though
SirLancelotDuLac
*Anti if I remember right -C=O bond is very polar so without breaking also there is effective + on carbon ig.
riddle
riddle3mo ago
ig antiaromatic
Dexter
Dexter3mo ago
anti aromatichm hoga quasi aromatic compounds type
SirLancelotDuLac
Yeah sort of.
Emiya
Emiya3mo ago
What's that
Dexter
Dexter3mo ago
Aromatic compounds that are formed by ionisation of a polar bond
cauchyschwartz
cauchyschwartzOP3mo ago
anti
cauchyschwartz
cauchyschwartzOP3mo ago
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SirLancelotDuLac
Is this related to the original question?
Prachi
Prachi3mo ago
Answer would be (B) due to Beyer strain theory (angle strain)
cauchyschwartz
cauchyschwartzOP3mo ago
no im sorry i forgot to mention stability order of rxn intermediate thanks a lot
SirLancelotDuLac
Ah.
cauchyschwartz
cauchyschwartzOP3mo ago
also i got the og question ka answer confirmed u guys are correct but no need to learn all this just know that aro is more stable
cauchyschwartz
cauchyschwartzOP3mo ago
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SirLancelotDuLac
,rotate
TeXit
TeXit3mo ago
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SirLancelotDuLac
Wait...The third one should be non-aromatic right? Because one portion of that is anti-aromatic rings also?
SirLancelotDuLac
Chemistry Stack Exchange
Is a compound aromatic if it also has anti-aromatic rings?
Is 5,6,11,12-tetradehydrodibenzo[a,e][8]annulene aromatic? If I use Hückel's rule for the whole molecule, I get the answer as anti-aromatic. But the compound has two benzene rings which are indivi...
cauchyschwartz
cauchyschwartzOP3mo ago
but i asked a teacher and she said ki it will be considered aro because aromatic structures are morw stable therefore more dominating
Emiya
Emiya3mo ago
How is it more stable exactly
cauchyschwartz
cauchyschwartzOP3mo ago
arey aromatic are obviously more stable than anti aromatic look up what aromatic and anti aro means
Emiya
Emiya3mo ago
No I mean, why is the stability overpowering the unstability of anti aro
cauchyschwartz
cauchyschwartzOP3mo ago
well im not sure about that but i was just told that a compound always wants to be stable so if the compound has an aro structure it will be stable i know this isnt exactly the answer but i think what ure looking for is not in syllabus for jee
Emiya
Emiya3mo ago
Alright thanks
iTeachChem
iTeachChem2mo ago
+solved @cauchyschwartz
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iTeachChem
iTeachChem2mo ago
+solved @SirLancelotDuLac
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