Total number of C-C sigma bond in phenylethene

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Discussion Overview

The discussion revolves around the total number of C-C sigma bonds in phenylethene, a topic related to molecular structure and bonding in organic chemistry. Participants are attempting to reconcile differing answers regarding the count of sigma bonds.

Discussion Character

  • Homework-related, Debate/contested

Main Points Raised

  • The original poster (OP) claims to have identified 8 C-C sigma bonds in their drawn structure of phenylethene, while their textbook states there are 12.
  • Some participants question the OP's count and suggest that the textbook may contain an error, supporting the OP's assertion of 8 sigma bonds.
  • Participants clarify that a single bond contains 1 sigma bond and a double bond contains 1 sigma and 1 pi bond, but express doubt that this information would change the OP's conclusion.

Areas of Agreement / Disagreement

There is disagreement regarding the total number of C-C sigma bonds, with some participants supporting the OP's count of 8 and others suggesting the textbook's count of 12 may be correct.

Contextual Notes

The discussion does not resolve the discrepancy between the OP's count and the textbook's answer, and assumptions about the structure drawn by the OP are not explicitly stated.

desmond iking
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Homework Statement



how many is total number of C-C sigma bond in phenylethene?


Homework Equations





The Attempt at a Solution



i have drawn the the strucutre as in the photo. i ended up getting 8 C-C sigma bond. but the ans from my book is 12. How to get 12?
 

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How many sigma (σ) bonds are in a single bond?

How sigma (σ) bonds are in a double bond?
 
ChiralWaltz said:
How many sigma (σ) bonds are in a single bond?

How sigma (σ) bonds are in a double bond?

Even after answering those questions, I don't think the OP's answer would change. I would say that the OP is correct and the book has an error.
 
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ChiralWaltz said:
How many sigma (σ) bonds are in a single bond?

How sigma (σ) bonds are in a double bond?

1 σ in single bond, 1 σ and 1 pi bond in double bond.
 
I would agree that OP is correct and that the number of C-C sigma bonds is 8.
 

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