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Draw resonating strictures of the following compound:

(pentan‐2‐ylidene)oxidanium

In this molecule there are two π-components, but they are not conjugated. According to me, as there is no conjugation, it should not have a resonating structure.

But it has. Why?

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  • $\begingroup$ @SoumikDas It does have two mesomeric structures not tautomers. In case of cations structures with broken bonds are important contributors. $\endgroup$ – Mithoron Apr 23 at 13:14
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    $\begingroup$ Resonance is not limited to pi systems; you probably have heard of hyperconjugation, too. The structure has at least two more significant contributing structures. Draw the structures placing the charge at the adjacent atoms. || I personally do not agree with the close votes on this question; I find it clear enough, providing enough context of the thought process, and not trivial. $\endgroup$ – Martin - マーチン Apr 23 at 22:59

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