Organic Chemistry (8th Edition)

Published by Pearson
ISBN 10: 0321768418
ISBN 13: 978-0-32176-841-4

Chapter 14 - Ethers, Epoxides, and Thioethers - Problems: Problem 14-2

Answer

The structure of the resulting aluminum chloride etherate complex can be seen in the picture.
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Work Step by Step

Oxygen here is Lewis base (electron pair donor) and aluminum is Lewis acid (electron pair acceptor). Oxygen shares its electron pair with aluminum and gets a positive formal charge due to three bonds. And since aluminum has 4 bonds it has a negative formal charge.
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