Organic Chemistry As a Second Language, 3e: First Semester Topics

Published by John Wiley & Sons
ISBN 10: 111801040X
ISBN 13: 978-1-11801-040-2

Chapter 2 - Resonance - 2.7 Drawing Resonance Structures - By Recognizing Patterns - Problems - Page 42: 2.43


The structure should like this:

Work Step by Step

1. Draw all lone pairs that are missing. As we can see, the oxygen atom has three lone pairs that were not drawed. 2. Identify the lone pair next to the positive charge: They are marked in the image. "Next" means that, there is exactly one bond between the lone pair and the atom with positive charge. 3. Draw the arrows: Follow the same pattern we have learned in the chapter. (Bring down the lone pair to the bond in the middle.) 4. Do the changes based on the arrows. * Don't forget the formal charges!
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