ORGANIC CHEMISTRY
ORGANIC CHEMISTRY
9th Edition
ISBN: 9780134645704
Author: WADE AND SIMEK
Publisher: PEARSON
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Chapter 16, Problem 16.32SP

(a)

Interpretation Introduction

Interpretation:

The classification of each of the given compounds as aromatic, antiaromatic or non-aromatic and number of pi electrons present in the aromatic or antiaromatic ring is to be stated.

Concept introduction:

The conditions that a molecule must follow to be aromatic are shown below.

  • The given compound must be cyclic in nature.
  • It must be planar.
  • There must be no sp3 hybridized carbon in the given compound.
  • The compound must follow Huckel’s rule of aromaticity, that is, (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(b)

Interpretation Introduction

Interpretation:

The classification of each of the given compounds as aromatic, antiaromatic or non-aromatic and number of pi electrons present in the aromatic or antiaromatic ring is to be stated.

Concept introduction:

The conditions that a molecule must follow to be aromatic are shown below.

  • The given compound must be cyclic in nature.
  • It must be planar.
  • There must be no sp3 hybridized carbon in the given compound.
  • The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(c)

Interpretation Introduction

Interpretation:

The classification of each of the given compounds as aromatic, antiaromatic or non-aromatic and number of pi electrons present in the aromatic or antiaromatic ring is to be stated.

Concept introduction:

The conditions that a molecule must follow to be aromatic are shown below.

  • The given compound must be cyclic in nature.
  • It must be planar.
  • There must be no sp3 hybridized carbon in the given compound.
  • The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(d)

Interpretation Introduction

Interpretation:

The classification of each of the given compounds as aromatic, antiaromatic or non-aromatic and number of pi electrons present in the aromatic or antiaromatic ring is to be stated.

Concept introduction:

The conditions that a molecule must follow to be aromatic are shown below.

  • The given compound must be cyclic in nature.
  • It must be planar.
  • There must be no sp3 hybridized carbon in the given compound.
  • The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(e)

Interpretation Introduction

Interpretation:

The classification of each of the given compounds as aromatic, antiaromatic or non-aromatic and number of pi electrons present in the aromatic or antiaromatic ring is to be stated.

Concept introduction:

The conditions that a molecule must follow to be aromatic are shown below.

  • The given compound must be cyclic in nature.
  • It must be planar.
  • There must be no sp3 hybridized carbon in the given compound.
  • The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(f)

Interpretation Introduction

Interpretation:

The classification of each of the given compounds as aromatic, antiaromatic or non-aromatic and number of pi electrons present in the aromatic or antiaromatic ring is to be stated.

Concept introduction:

The conditions that a molecule must follow to be aromatic are shown below.

  • The given compound must be cyclic in nature.
  • It must be planar.
  • There must be no sp3 hybridized carbon in the given compound.
  • The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(g)

Interpretation Introduction

Interpretation:

The classification of each of the given compounds as aromatic, antiaromatic or non-aromatic and number of pi electrons present in the aromatic or antiaromatic ring is to be stated.

Concept introduction:

The conditions that a molecule must follow to be aromatic are shown below.

  • The given compound must be cyclic in nature.
  • It must be planar.
  • There must be no sp3 hybridized carbon in the given compound.
  • The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

(h)

Interpretation Introduction

Interpretation:

The classification of each of the given compounds as aromatic, antiaromatic or non-aromatic and number of pi electrons present in the aromatic or antiaromatic ring is to be stated.

Concept introduction:

The conditions that a molecule must follow to be aromatic are shown below.

  • The given compound must be cyclic in nature.
  • It must be planar.
  • There must be no sp3 hybridized carbon in the given compound.
  • The compound must follow Huckel’s rule of aromaticity that is (4n+2)π electron system must be present.

If the given compound follows first three conditions but it follows 4nπ electron system, then it is antiaromatic in nature. If the given compound fails to follow any of the above conditions then it is non-aromatic in nature.

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Chapter 16 Solutions

ORGANIC CHEMISTRY

Ch. 16.8A - Repeat Problem16-10 for the cyclopentadienyl ions....Ch. 16.8C - Explain why each compound or ion should be...Ch. 16.8C - The following hydrocarbon has an unusually large...Ch. 16.8C - Prob. 16.14PCh. 16.8C - Prob. 16.15PCh. 16.9B - Prob. 16.16PCh. 16.9C - Show which of the nitrogen atoms in purine are...Ch. 16.9C - The proton NMR spectrum of 2-pyridone gives the...Ch. 16.9D - Prob. 16.19PCh. 16.9D - Prob. 16.20PCh. 16.10 - Prob. 16.21PCh. 16.12 - Ciprofloxacin is a member of the fluoroquinolone...Ch. 16.13 - Draw and name all the chlorinated benzenes having...Ch. 16.13 - Name the following compounds:Ch. 16.15 - The UV spectrum of 1-phenylprop-2-en-1-ol shows an...Ch. 16 - Prob. 16.26SPCh. 16 - Name the following compounds:Ch. 16 - Draw and name all the methyl, dimethyl, and...Ch. 16 - Four pairs of compounds are shown. In each pair,...Ch. 16 - One of the following hydrocarbons is much more...Ch. 16 - In Kekuls time cyclohexane was unknown, and there...Ch. 16 - Prob. 16.32SPCh. 16 - Azulene is a deep-blue hydrocarbon with resonance...Ch. 16 - Prob. 16.34SPCh. 16 - Prob. 16.35SPCh. 16 - Prob. 16.36SPCh. 16 - Prob. 16.37SPCh. 16 - Prob. 16.38SPCh. 16 - Prob. 16.39SPCh. 16 - Biphenyl has the following structure. a. Is...Ch. 16 - Anions of hydrocarbons are rare, and dianions of...Ch. 16 - How would you convert the following compounds to...Ch. 16 - Prob. 16.43SPCh. 16 - Prob. 16.44SPCh. 16 - A student found an old bottle labeled thymol on...Ch. 16 - Prob. 16.46SPCh. 16 - Prob. 16.47SPCh. 16 - Prob. 16.48SPCh. 16 - The proton NMR chemical shifts of the hydrogens in...Ch. 16 - Prob. 16.50SPCh. 16 - NMR has been used to probe many molecular...
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