Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 14: Q13P (page 629)

Which underlined proton (or sets of protons) has the greater chemical shift (that is, the higher frequency signal)?

Short Answer

Expert verified

The protons with the greater chemical shift are underlined below.

Step by step solution

01

Step-by-Step SolutionStep 1: Electronegativity

Electronegativity is the electron attracting power of an atom.Its chemical shift is greater if a proton is attached to a higher electronegative atom. The electronegativity of chlorine is higher than bromine, so the chemical shift of the proton attached to chlorine is higher.

02

Position of protons

If a proton is near an electronegative atom,such asfluorine or chlorine, its chemical shift is higher.

Hence, the protons with a greater chemical shift are underlined below.

Underlined protons have a greater chemical shift

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

Identify the compound with molecular formulaC3H7NO responsible for the 1H NMR spectrum shown here.

Identify each of the following compounds from its molecular formula and its IR and 1H NMR spectra:

a. C6H120

b.C6H14O

c. C10H13NO3

d. C11H14O2

Propose structures that are consistent with the following spectra. (Integral ratios are given from left to right across the spectrum.)

a. The1HNMR spectrum of a compound with molecular formulaC4H10O2has two singlets with integral ratios of 2: 3.

b. The1HNMR spectrum of a compound with molecular formulaC6H10O2has two singlets with integral ratios of 2: 3.

c. The1HNMR spectrum of a compound with molecular formulaC8H6O2has two singlets with integral ratios of 1: 2.

How many signals are produced by each of the following compounds in its

a.1HNMRSpectrum?

b. 13CNMR spectrum?

1.

2.

3.

4.

5.

6.

Compound A, with molecular formula C4H9Cl, shows two signals in its 13C NMR spectrum. Compound B, an isomer of compound A, shows foursignals, and in the proton-coupled mode, the signal farthest downfield is a doublet. Identify compounds A and B.
See all solutions

Recommended explanations on Chemistry Textbooks

Chemical Reactions

Read Explanation

Inorganic Chemistry

Read Explanation

The Earths Atmosphere

Read Explanation

Physical Chemistry

Read Explanation

Kinetics

Read Explanation

Ionic and Molecular Compounds

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