### Aromatic Compounds and Hückel Numbers#### Question:1. The following compounds or ions are aromatic. What is the Hückel number (n) for each one? Show your calculation. If more than one, give the larger n.### Diagram Descriptions:1. **First Compound (Triangle with a positive charge):** - A triangular structure (three-membered ring) with a positive charge notation (+) on one vertex.2. **Second Compound (Benzene):** - A six-membered carbon ring with alternating double bonds, characteristic of benzene.3. **Third Compound (Naphthalene):** - A fused ring system composed of two benzene-like six-membered rings sharing a common edge.4. **Fourth Compound:** - A six-membered ring with three alternating double bonds, similar to benzene.5. **Fifth Compound (Pyrrole-like structure):** - A five-membered ring containing one nitrogen atom, represented as a pyrrole structure with a hydrogen attached to nitrogen and a pair of electrons indicated by a dot.#### Hückel's Rule:Hückel's rule states that a planar ring molecule will be aromatic if it has \(4n + 2\) π-electrons, where \(n\) is a non-negative integer (n = 0, 1, 2, 3, ...).#### Calculations:- For the triangular compound: - This compound does not fit the criteria for Hückel’s rule as it has no π-electrons.- For benzene: Benzene has 6 π-electrons. \(4n + 2 = 6\) Solving for n: \(4n + 2 = 6 \\ 4n = 4 \\ n = 1\)- For naphthalene: Naphthalene has 10 π-electrons. \(4n + 2 = 10\) Solving for n: \(4n + 2 = 10 \\ 4n = 8 \\ n = 2\)- For the six-membered ring: This compound is also benzene-like and has 6 π-electrons. As above for benzene: \(n = 1\)- For the pyrrole-like structure: Pyrrole has

Huckel rule: A cyclic, planar and conjugated system containing (4n+2)πe– is said to be aromatic.…

Answered: 1. The following compounds or ions are…

1. The following compounds or ions are aromatic. What is the Hückel number (n) for each one? Show your calculation. If more than one, give the larger n. H n = calculation

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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