Stability Order of resonating structures

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Discussion Overview

The discussion revolves around the stability order of resonating structures for vinyl chloride. Participants are analyzing the stability based on charge distribution and the valence shell of chlorine in the structures.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant proposes the stability order I>III>II, arguing that structure I is the most stable due to the absence of charge.
  • The same participant notes that structure II is less stable because it has chlorine, an electronegative element, bearing a positive charge.
  • Another participant questions the number of electrons in the valence shell of chlorine in structure III, suggesting it has 10 electrons.
  • A subsequent reply challenges the validity of structure III as a permissible resonance structure based on ordinary rules regarding electron capacity.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus, as there are competing views on the stability order and the validity of structure III as a resonance form.

Contextual Notes

There are unresolved questions regarding the electron count in structure III and its compliance with standard resonance structure rules.

randomgamernerd
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I have uploaded the picture of the structures because I couldn't figure out how to type.
Its vinyl chloride.
15314715716633361855743515196350.jpg

According to me the order should be
I>III>II
because I has no charge so it must be most stable
in II we have Cl an electronegative element bearing positive charge which makes it unstable.
Hence I get the order.
But the book says the order is I>II>III
Please Help
 

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Chemistry news on Phys.org
How many electrons are in the valence shell of the Cl in III?
 
mjc123 said:
How many electrons are in the valence shell of the Cl in III?
apparently 10how is that possibleit can hold at max 8 if I'm not wrong
 
So III is not a permissible resonance structure according to the ordinary rules.
 

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