/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q4P Question: How many \(^{\bf{1}}{\... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 14: Q4P (page 527)

Question: How many \(^{\bf{1}}{\bf{H}}\) NMR signals does each dimethylcyclopropane show?

a.

b.

c.

Short Answer

Expert verified
  1. 2
  2. 3
  3. 3

Step by step solution

01

NMR spectroscopy

If a compound contains either plane of symmetry or center of symmetry, the protons of the opposite (mirror images) substituents have the same environment. Thus, these protons have given the same signal.

02

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

a. The given compound has a plane of symmetry as shown below:

Plane of symmetry in a

Thus, the given compound has two types of protons, and it will provide two signals.

b. The given compound has a plane of symmetry as shown below:

Plane of symmetry in b

Thus, the given compound has three types of protons, and it will provide three signals.

c. The given compound has a center of symmetry as shown below:

Center of symmetry in c

Thus, the given compound has three types of protons, and it will provide three signals.

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.

Over 30 million students worldwide already upgrade their learning with 91影视!

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: How many different types of protons are present in each compound?

Identify A and B, isomers of molecular formula C3H4Cl2 , from the given 1HNMR data: Compound A exhibits signals at 1.75 (doublet, 3H,J = 6.9 Hz) and 5.89 (quartet, 1H, J = 6.9 Hz) ppm. Compound B exhibits signals at 4.16 (singlet, 2 H), 5.42 (doublet, 1H, J = 1.9 Hz), and 5.59 (doublet, 1H, J = 1.9 Hz) ppm.

Question: How many \(^{\bf{1}}{\bf{H}}\) NMR signals does each compound show?

a.

b.

c.

d.

e.

f.

g.

h.

For each compound give the number of NMR signals, and then determine how many peaks are present for each NMR signal.

a.

b.

c.

d.

Propose a structure consistent with each set of data.

a. C9H10O2: IR absorption at 1718cm-1

b. C9H12 : IR absorption at 2850鈥�3150cm-1
See all solutions

Recommended explanations on Chemistry Textbooks

Chemical Reactions

Read Explanation

Inorganic Chemistry

Read Explanation

Kinetics

Read Explanation

Nuclear Chemistry

Read Explanation

Ionic and Molecular Compounds

Read Explanation

Making Measurements

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.