draw the resonance for the following structures?

Organic Chemistry
9th Edition
ISBN:9781305080485
Author:John E. McMurry
Publisher:John E. McMurry
Chapter15: Benzene And Aromaticity
Section15.SE: Something Extra
Problem 16VC
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draw the resonance for the following structures?

**Resonance Structures in Organic Chemistry**

**1. Phenoxide Ion Resonance**
The first structure is a phenoxide ion. The molecule consists of a benzene ring with an oxygen atom carrying a negative charge (-O) attached to it. The positive charge is delocalized within the benzene ring.

**2. Cyclohexadienone Resonance**
The second structure represents a cyclohexadienone derivative. It contains a six-membered ring with one double bond and a carbonyl group (=O) directly attached to the ring. The negative charge on the oxygen atom can be delocalized around the ring forming resonance structures.

**3. Aniline Derivative with Bromine**
The third structure shows an aniline derivative where the benzene ring is attached to an amino group (NH2) and a bromine atom (Br). The ring carries a positive charge, indicating that the electron density within the ring is altered.

**4. Phenolium Ion Resonance**
In the fourth structure, the benzene ring is bonded to an oxygen atom carrying a positive charge (O+), indicating a phenolium ion. This can lead to several resonance structures where the positive charge is delocalized around the benzene ring.

**5. Benzyl Cation**
The fifth structure shows a benzyl cation. This molecule consists of a benzene ring with a positively charged carbon atom attached to one of the ring positions (indicated with CH2+). 

Each of these diagrams uses double-headed arrows to indicate resonance structures, signifying the delocalization of electrons within the molecules which contributes to the stabilization of the molecular structure.
Transcribed Image Text:**Resonance Structures in Organic Chemistry** **1. Phenoxide Ion Resonance** The first structure is a phenoxide ion. The molecule consists of a benzene ring with an oxygen atom carrying a negative charge (-O) attached to it. The positive charge is delocalized within the benzene ring. **2. Cyclohexadienone Resonance** The second structure represents a cyclohexadienone derivative. It contains a six-membered ring with one double bond and a carbonyl group (=O) directly attached to the ring. The negative charge on the oxygen atom can be delocalized around the ring forming resonance structures. **3. Aniline Derivative with Bromine** The third structure shows an aniline derivative where the benzene ring is attached to an amino group (NH2) and a bromine atom (Br). The ring carries a positive charge, indicating that the electron density within the ring is altered. **4. Phenolium Ion Resonance** In the fourth structure, the benzene ring is bonded to an oxygen atom carrying a positive charge (O+), indicating a phenolium ion. This can lead to several resonance structures where the positive charge is delocalized around the benzene ring. **5. Benzyl Cation** The fifth structure shows a benzyl cation. This molecule consists of a benzene ring with a positively charged carbon atom attached to one of the ring positions (indicated with CH2+). Each of these diagrams uses double-headed arrows to indicate resonance structures, signifying the delocalization of electrons within the molecules which contributes to the stabilization of the molecular structure.
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