Draw a resonance structure of pyrrole that has the same number of pi bonds as the original structure. Include all lone pairs in your structure. H EN

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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**Task:** Draw a resonance structure of pyrrole that has the same number of pi bonds as the original structure. Include all lone pairs in your structure.

**Diagram Details:**

The image displays a diagram of the pyrrole molecule. Pyrrole is a five-membered aromatic heterocycle with the formula C₄H₅N. In the structure:

- There is a five-membered ring with four carbon atoms and one nitrogen atom.
- The nitrogen is bonded to one hydrogen atom.
- There are alternating single and double bonds, indicating aromaticity.
- The nitrogen atom also carries a lone pair of electrons.

Below the diagram, there is a section labeled "Drawing," outlined with a dashed red line, where the user is expected to sketch the resonance structure. An arrow pointing from the pyrrole diagram to the "Drawing" section suggests the transformation to a resonance structure.
Transcribed Image Text:**Task:** Draw a resonance structure of pyrrole that has the same number of pi bonds as the original structure. Include all lone pairs in your structure. **Diagram Details:** The image displays a diagram of the pyrrole molecule. Pyrrole is a five-membered aromatic heterocycle with the formula C₄H₅N. In the structure: - There is a five-membered ring with four carbon atoms and one nitrogen atom. - The nitrogen is bonded to one hydrogen atom. - There are alternating single and double bonds, indicating aromaticity. - The nitrogen atom also carries a lone pair of electrons. Below the diagram, there is a section labeled "Drawing," outlined with a dashed red line, where the user is expected to sketch the resonance structure. An arrow pointing from the pyrrole diagram to the "Drawing" section suggests the transformation to a resonance structure.
**Title: Aromatic Transformation of 7-Bromocyclohepta-1,3,5-triene in Aqueous Solution**

**Description:**

In this exercise, we explore the unexpected solubility of 7-bromocyclohepta-1,3,5-triene in water and identify the aromatic structure it forms. 

**Step-by-Step Instructions:**

1. **Starting Structure:**
   - The initial compound is 7-bromocyclohepta-1,3,5-triene, represented by a seven-membered carbon ring with alternating single and double bonds. A bromine atom (Br) is attached to one of the carbon atoms.

2. **Reaction with Water:**
   - The compound interacts with water (H₂O), suggesting a chemical transformation leading to an aromatic product.

3. **Drawing the Aromatic Structure:**
   - A prompt is given to draw the aromatic structure formed in aqueous solution. It is crucial to include all lone pairs in your structure for completeness.

**Diagram Explanation:**

- The diagram displays the structure of 7-bromocyclohepta-1,3,5-triene. It features a cyclic, planar heptatriene structure with a bromine substituent.
  
- An arrow indicates the introduction of water (H₂O), leading to the formation of a new aromatic structure.

- An area is provided for drawing the resulting aromatic compound, emphasizing the need to pay attention to lone pairs, which can influence reactivity and stability.

This exercise encourages understanding of aromaticity and chemical transformations in organic molecules.
Transcribed Image Text:**Title: Aromatic Transformation of 7-Bromocyclohepta-1,3,5-triene in Aqueous Solution** **Description:** In this exercise, we explore the unexpected solubility of 7-bromocyclohepta-1,3,5-triene in water and identify the aromatic structure it forms. **Step-by-Step Instructions:** 1. **Starting Structure:** - The initial compound is 7-bromocyclohepta-1,3,5-triene, represented by a seven-membered carbon ring with alternating single and double bonds. A bromine atom (Br) is attached to one of the carbon atoms. 2. **Reaction with Water:** - The compound interacts with water (H₂O), suggesting a chemical transformation leading to an aromatic product. 3. **Drawing the Aromatic Structure:** - A prompt is given to draw the aromatic structure formed in aqueous solution. It is crucial to include all lone pairs in your structure for completeness. **Diagram Explanation:** - The diagram displays the structure of 7-bromocyclohepta-1,3,5-triene. It features a cyclic, planar heptatriene structure with a bromine substituent. - An arrow indicates the introduction of water (H₂O), leading to the formation of a new aromatic structure. - An area is provided for drawing the resulting aromatic compound, emphasizing the need to pay attention to lone pairs, which can influence reactivity and stability. This exercise encourages understanding of aromaticity and chemical transformations in organic molecules.
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