ORGANIC CHEMISTRY 3E WPNGC LL SET 1S 
ORGANIC CHEMISTRY 3E WPNGC LL SET 1S 
3rd Edition
ISBN: 9781119815792
Author: Klein
Publisher: WILEY
Question
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Chapter 15, Problem 74IP
Interpretation Introduction

Interpretation: The reason for the difference in chemical shift value of two methyl groups in the given structure to be interpreted.

Concept Introduction:

1HNMR : The 1HNMR spectrum gives information on the different electronic environment of protons. The number of signal (proton types) generated in 1HNMR are predicted by performing symmetry operations (rotation or reflection symmetry).

The 13CNMR spectrum gives information on the different electronic environments of carbon. As like 1HNMR , the number of signals generated in 13CNMR are predicted by performing symmetry operations (rotation or reflection symmetry). Only chemical shift values are reported in the spectrum but not the multiplicity and integration values because the coupling between two neighboring 13C13C nuclei are weakly involved due to the low abundance of 13C isotopes of carbon atom.

Anisotropic effects: Placing a compound in the strong magnetic field causes the pi-electrons to circulate and this flow of electrons creates an induced magnetic field. This result is diamagnetic anisotropy, which means the different region of space in the compound experience different magnetic field strengths.

Shielding effect: If the protons are aligned towards or near to the newly generated induced magnetic effect opposes the external magnetic field (protons experience the weak magnetic field) and termed as shielding effect reflects in the low chemical shift values.

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Chapter 15 Solutions

ORGANIC CHEMISTRY 3E WPNGC LL SET 1S 

Ch. 15.5 - Prob. 8PTSCh. 15.5 - Ethyl 3-ethoxypropanoate is a solvent used in the...Ch. 15.5 - Prob. 10CCCh. 15.6 - Prob. 4LTSCh. 15.6 - Prob. 11PTSCh. 15.6 - Prob. 12PTSCh. 15.6 - Prob. 13PTSCh. 15.6 - Prob. 14ATSCh. 15.7 - Prob. 5LTSCh. 15.7 - Prob. 15PTSCh. 15.7 - The volatile organic compounds (VOCs) produced by...Ch. 15.7 - Prob. 17CCCh. 15.7 - Prob. 18CCCh. 15.8 - Prob. 6LTSCh. 15.8 - Prob. 19PTSCh. 15.9 - Prob. 7LTSCh. 15.9 - Prob. 21PTSCh. 15.9 - The familiar odor produced when rain falls on dry...Ch. 15.10 - Prob. 8LTSCh. 15.10 - Prob. 23PTSCh. 15.10 - Prob. 24PTSCh. 15.10 - Neurotransmitters are small molecules that are...Ch. 15.12 - Prob. 9LTSCh. 15.12 - Prob. 26PTSCh. 15.12 - Prob. 27ATSCh. 15.13 - Prob. 10LTSCh. 15.13 - Prob. 28PTSCh. 15.13 - Prob. 29PTSCh. 15.13 - Prob. 30PTSCh. 15 - Prob. 32PPCh. 15 - Prob. 33PPCh. 15 - Prob. 34PPCh. 15 - Prob. 35PPCh. 15 - Prob. 36PPCh. 15 - Prob. 37PPCh. 15 - Prob. 38PPCh. 15 - Prob. 39PPCh. 15 - Prob. 40PPCh. 15 - Prob. 41PPCh. 15 - Prob. 42PPCh. 15 - Prob. 43PPCh. 15 - Prob. 44PPCh. 15 - Prob. 45PPCh. 15 - Prob. 46PPCh. 15 - Prob. 47PPCh. 15 - Prob. 48PPCh. 15 - Prob. 49PPCh. 15 - Prob. 50PPCh. 15 - Prob. 51PPCh. 15 - Prob. 52PPCh. 15 - Prob. 53PPCh. 15 - Prob. 54PPCh. 15 - Prob. 55PPCh. 15 - Prob. 56PPCh. 15 - Propose the structure of a compound that exhibits...Ch. 15 - Prob. 58PPCh. 15 - Prob. 59PPCh. 15 - Prob. 60PPCh. 15 - Prob. 61PPCh. 15 - Prob. 62PPCh. 15 - Prob. 63IPCh. 15 - Prob. 64IPCh. 15 - Prob. 65IPCh. 15 - Prob. 66IPCh. 15 - Prob. 67IPCh. 15 - Prob. 68IPCh. 15 - Prob. 69IPCh. 15 - Prob. 70IPCh. 15 - Prob. 71IPCh. 15 - Prob. 72IPCh. 15 - Prob. 73IPCh. 15 - Prob. 74IPCh. 15 - Prob. 75IPCh. 15 - Prob. 76IPCh. 15 - Prob. 77IPCh. 15 - Prob. 78CPCh. 15 - Compound 1 can serve as a precursor in the...Ch. 15 - Prob. 81CP
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