Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 14: Q7P (page 527)

Question: How many \(^{\bf{1}}{\bf{H}}\) NMR signals would you expect for each compound?

a.

b.

c.

Short Answer

Expert verified
  1. 4
  2. 5
  3. 5

Step by step solution

01

NMR spectroscopy

The chemical shift of a proton is affected by the presence of an electronegative atom. The proton around the electronegative atom is deshielded, due to which it absorbs downfield.

02

Step 2: \(^{\bf{1}}{\bf{H}}\) NMR signals in a, b and c

a.

The given compound has four types of protons, and it will give four signals, as shown below.

Structure of a

b.

The given compound has five types of protons, and it will give five signals, as shown below.

Structure of b

c.

The given compound has five types of protons, and it will give five signals, as shown below.

Structure of c

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Question. Reaction of aldehyde D with amino alcohol E in the presence of NaH forms F (molecular formula C11H15NO2). F absorbs at 1730 cm-1in its IR spectrum. F also shows eight lines in its 13C-NMR spectrum, and gives the following -NMR spectrum: 2.32 (singlet, 6 H), 3.05 (triplet, 2 H), 4.20 (triplet, 2 H), 6.97 (doublet, 2 H), 7.82 (doublet, 2 H), and 9.97 (singlet, 1 H) ppm. Propose a structure for F. We will learn about this reaction in Chapter 18.

Question: a. How many signals does dimethyl fumarate ( CH3O2CCH=CHC02CH3 with a trans C=C) exhibit in its 13C NMR spectrum? b. Draw the structure of an isomer of dimethyl fumarate that has each of the following number of signals in its 13C NMR spectrum: [1] three; [2] four; [5] five

How many NMR signals does each compound give?

a.

b.

c.

d.

Question: Identify the carbon atoms that give rise to each NMR signal.

a.

b

How many \(^{{\bf{13}}}{\bf{C}}\) NMR signals do each compound exhibit?

a.

b.

c.

d.

e.

f.

g.

h.
See all solutions

Recommended explanations on Chemistry Textbooks

Making Measurements

Read Explanation

Inorganic Chemistry

Read Explanation

Chemical Analysis

Read Explanation

Physical Chemistry

Read Explanation

Organic Chemistry

Read Explanation

Chemical Reactions

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free