Organic Chemistry Practice Problems Major and Minor Resonance Contributors Practice Problems Solution: Use line-angle (skeletal) structures (showing all ...

Solution: Use line-angle (skeletal) structures (showing all lone pairs present). A. Create the electron arrows needed to arrive at the other resonance structures for the following molecules. B. Construct the new resonance structure produced by that shift in electrons. C. Classify each of them as major, minor, or equal contributors to the resonance hybrid. 

Problem

Use line-angle (skeletal) structures (showing all lone pairs present). 

A. Create the electron arrows needed to arrive at the other resonance structures for the following molecules. 

B. Construct the new resonance structure produced by that shift in electrons. 

C. Classify each of them as major, minor, or equal contributors to the resonance hybrid.

 

Solution

We’re being to classify the additional resonance structures as major, minor, or equal contributors to the resonance hybrid. The given structure is:



Recall that resonance involves the movement of pi electrons in a molecule. For this problem, we need to do the following steps:

Step 1: Create electron arrows and draw additional resonance structures.

Step 2: Classify each resonance structure as major, minor, or equal contributors.


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