Three resonance forms for cyclohexadienyl radical are to be given. Concept introduction: Resonance forms differ only in the position the π electrons or the unpaired electrons.The position of atoms do not change in different forms. The shift of electrons is represented by a curved arrow. To give: Three resonance forms for cyclohexadienyl radical.

Question

How many signals do you expect in the H NMR spectrum for this molecule? Br Br Write the answer below. Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H atoms that would contribute to the same signal as the H already highlighted red. Note for advanced students: In this question, any multiplet is counted as one signal. Number of signals in the 'H NMR spectrum. For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in top molecule For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in bottom molecule

Answer 1

Question

Chapter 10.4, Problem 5P

Interpretation Introduction

Interpretation:

Three resonance forms for cyclohexadienyl radical are to be given.

Concept introduction:

Resonance forms differ only in the position the π electrons or the unpaired electrons.The position of atoms do not change in different forms. The shift of electrons is represented by a curved arrow.

To give:

Three resonance forms for cyclohexadienyl radical.

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