Which of the following is not true for monocyclic aromatic compounds The T-system may contain 2, 6 or 10 electrons The ring is planar O The ring may contain heteroatoms The T-system may contain 4 or 8 electrons

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...
icon
Related questions
Question
**Question:**

Which of the following is **not** true for monocyclic aromatic compounds?

- The π-system may contain 2, 6, or 10 electrons
- The ring is planar
- The ring may contain heteroatoms
- The π-system may contain 4 or 8 electrons

**Explanation:**

Monocyclic aromatic compounds exhibit specific characteristics that align with Huckel's rule for aromaticity, which states that the compound must have a π-system containing 4n + 2 electrons (where n is a non-negative integer). This means that 2, 6, and 10 electrons in the π-system are typical for aromatic compounds. Additionally, for a compound to be aromatic, the ring must be planar to allow for effective overlap of the p orbitals.

Aromatic rings can also include heteroatoms, such as nitrogen, oxygen, or sulfur, which contribute to the aromaticity as long as they do not disrupt the electron count necessary for aromaticity.

However, a π-system containing 4 or 8 electrons does not satisfy Huckel's rule and therefore cannot be aromatic, making the final option incorrect for monocyclic aromatic compounds.
Transcribed Image Text:**Question:** Which of the following is **not** true for monocyclic aromatic compounds? - The π-system may contain 2, 6, or 10 electrons - The ring is planar - The ring may contain heteroatoms - The π-system may contain 4 or 8 electrons **Explanation:** Monocyclic aromatic compounds exhibit specific characteristics that align with Huckel's rule for aromaticity, which states that the compound must have a π-system containing 4n + 2 electrons (where n is a non-negative integer). This means that 2, 6, and 10 electrons in the π-system are typical for aromatic compounds. Additionally, for a compound to be aromatic, the ring must be planar to allow for effective overlap of the p orbitals. Aromatic rings can also include heteroatoms, such as nitrogen, oxygen, or sulfur, which contribute to the aromaticity as long as they do not disrupt the electron count necessary for aromaticity. However, a π-system containing 4 or 8 electrons does not satisfy Huckel's rule and therefore cannot be aromatic, making the final option incorrect for monocyclic aromatic compounds.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Introduction to Polymers
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY