Please help I'm confused. Your task:Determine which isomer (trans or cis)correspond to the 2 methylene peaks at 3.1ppm and 3.8 ppm• You will have to calculate the couplingconstant for both methylene and assignthem to the red proton belowонH OHH₂8. &cistransCoupling pattern: doublet oftripletYou will look for the originaltriplet that split into adoubletUse peaks 1 and 3CouplingconstantAxial Hs11₂OHtransCH₂9-12 HztripletHow to determine the isomer via coupling constantOHHdoubletCHFIG. 36.1The 20-spectrumof a mixture of cand2-metyylCH₂HG.:The MIMBThe 250-MH NMR spectrumof a mixture of cle andtrace-3-methylcyclThe frequens of pas15950394759448,942.2 and 135 Hrespectively. Theof peaks to 11 are 791 2.786.3.761.6,777.1,7716,and 767, respectivelyThe frequencies of peaks1 to 5 are 96.3, 947.5,equatorial Hs2-5 Hz9448, 42.2 and 10respectively. Theaf peaks 6 to 117868, 781 777.1, 771.4.and 757.4 Hr, respectivelyAxial Hs11₂26 3.8H₂wha4-7 HzCoupling constant:smaller spacingbetween each peakسلWorldFPM19723LDHOHcis13MIN10C1₂equatorial Hsas4-7 Hz• Assume the hydrogens for both cisand trans will be in axial position (sothat methyl is equatorial)

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Answered: Your task: Determine which isomer…

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Your task: Determine which isomer (trans or cis) correspond to the 2 methylene peaks at 3.1 ppm and 3.8 ppm

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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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

Please help I'm confused.

Your task:
Determine which isomer (trans or cis)
correspond to the 2 methylene peaks at 3.1
ppm and 3.8 ppm
• You will have to calculate the coupling
constant for both methylene and assign
them to the red proton below
он
H OH
H₂
8. &
cis
trans
Coupling pattern: doublet of
triplet
You will look for the original
triplet that split into a
doublet
Use peaks 1 and 3
Coupling
constant
Axial Hs
11₂
OH
trans
CH₂
9-12 Hz
triplet
How to determine the isomer via coupling constant
OH
H
doublet
CH
FIG. 36.1
The 20-spectrum
of a mixture of cand
2-metyyl
CH₂
HG.:
The MIMB
The 250-MH NMR spectrum
of a mixture of cle and
trace-3-methylcycl
The frequens of pas
1595039475
9448,942.2 and 135 H
respectively. The
of peaks to 11 are 791 2.
786.3.761.6,777.1,7716,
and 767, respectively
The frequencies of peaks
1 to 5 are 96.3, 947.5,
equatorial Hs
2-5 Hz
9448, 42.2 and 10
respectively. The
af peaks 6 to 11
7868, 781 777.1, 771.4.
and 757.4 Hr, respectively
Axial Hs
11₂
26 3.8
H₂
wha
4-7 Hz
Coupling constant:
smaller spacing
between each peak
سل
World
FPM
197
23
LD
HOH
cis
13
MIN
10
C1₂
equatorial Hs
as
4-7 Hz
• Assume the hydrogens for both cis
and trans will be in axial position (so
that methyl is equatorial)

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