For each molecule propose a structure, identify important IR stretches and match each peak in the proton spectrum to protons in your structure. The carbon NMRS are only shown to indicate the number of unique carbons in the structure. 1. The unknown formula is C8H14O3.

For each molecule propose a structure, identify important IR stretches and match each peak in the proton spectrum to protons in your structure. The carbon NMRS are only shown to indicate the number of unique carbons in the structure. 1. The unknown formula is C8H14O3.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.

Question

For each molecule propose a structure,
identify important IR stretches and match
each peak in the proton spectrum to protons
in your structure. The carbon NMRS are only
shown to indicate the number of unique
carbons in the structure.
1. The unknown formula is C8H1403.
1755
1820
4000
3500
3000
2500
2000
1500
1000
Wavenumber (cm¯1)
triplet-
triplet
Proton NMR
Expansion
2.00
1.50
TMS
6
Chemical Shift (ppm)
10
9
8 7
5
4
3 2
% Transmittance

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