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Question 4: Below are the spectral data (IR, MS, 1H NMR, and 13C NMR) for an unknown organic compound. Examine the data carefully and answer the questions that follow. 2718 4a) There is only one set of signals above 1750 cm-1 in the IR spectrum. What functional group does this signal indicate? IR Spectrum (liquid film) 1715 4000 3000 2000 1600 1200 800 V (cm³) 100 80 60 20 זיויויזיויויויויז % of base peak 44 58 M+ 86 Mass Spectrum 4b) Combining information from the IR and NMR spectra, what major functional group is likely present? C5H100 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (100 MHz, CDCl3 solution) DEPT CH2CH₂ ↑ CH 1 proton decoupled 1H NMR Spectrum (400 MHz, CDCl3 solution) 10 solvent 3 4b) How many signals from sp³ carbons in 13 C-NMR 4c) How many different proton chemical environments are in the molecule? 200 160 120 80 40 Ο δ (ppm) 4e) Proposed structure expansion scale 0 20 Hz expansions лиш 9.8 9.7 2.3 2.2 1.0 0.95 ppm 6 8 7 6 5 4 3 2 1 TMS 0 5 (ppm)

Question 4: Below are the spectral data (IR, MS, 1H NMR, and 13C NMR) for an unknown organic compound. Examine the data carefully and answer the questions that follow. 2718 4a) There is only one set of signals above 1750 cm-1 in the IR spectrum. What functional group does this signal indicate? IR Spectrum (liquid film) 1715 4000 3000 2000 1600 1200 800 V (cm³) 100 80 60 20 זיויויזיויויויויז % of base peak 44 58 M+ 86 Mass Spectrum 4b) Combining information from the IR and NMR spectra, what major functional group is likely present? C5H100 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (100 MHz, CDCl3 solution) DEPT CH2CH₂ ↑ CH 1 proton decoupled 1H NMR Spectrum (400 MHz, CDCl3 solution) 10 solvent 3 4b) How many signals from sp³ carbons in 13 C-NMR 4c) How many different proton chemical environments are in the molecule? 200 160 120 80 40 Ο δ (ppm) 4e) Proposed structure expansion scale 0 20 Hz expansions лиш 9.8 9.7 2.3 2.2 1.0 0.95 ppm 6 8 7 6 5 4 3 2 1 TMS 0 5 (ppm)

Chemistry
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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Below are the spectral data (IR, MS, 1H NMR, and 13C NMR) for an unknown organic compound. Examine the data carefully and answer the questions that follow.
4a) There is only one set of signals above 1750 cm–1 in the IR spectrum. What functional group does this signal indicate? 
4b) Combining information from the IR and NMR spectra, what major functional group is likely present? 
4b) How many signals from sp3 carbons in 13C-NMR 
4c) How many different proton chemical environments are in the molecule? 
4e) Proposed structure

Question 4: Below are the spectral data (IR, MS, 1H NMR, and 13C NMR) for an unknown organic compound. Examine the data carefully and answer the questions that follow. 2718 4a) There is only one set of signals above 1750 cm-1 in the IR spectrum. What functional group does this signal indicate? IR Spectrum (liquid film) 1715 4000 3000 2000 1600 1200 800 V (cm³) 100 80 60 20 זיויויזיויויויויז % of base peak 44 58 M+ 86 Mass Spectrum 4b) Combining information from the IR and NMR spectra, what major functional group is likely present? C5H100 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (100 MHz, CDCl3 solution) DEPT CH2CH₂ ↑ CH 1 proton decoupled 1H NMR Spectrum (400 MHz, CDCl3 solution) 10 solvent 3 4b) How many signals from sp³ carbons in 13 C-NMR 4c) How many different proton chemical environments are in the molecule? 200 160 120 80 40 Ο δ (ppm) 4e) Proposed structure expansion scale 0 20 Hz expansions лиш 9.8 9.7 2.3 2.2 1.0 0.95 ppm 6 8 7 6 5 4 3 2 1 TMS 0 5 (ppm)
Transcribed Image Text:Question 4: Below are the spectral data (IR, MS, 1H NMR, and 13C NMR) for an unknown organic compound. Examine the data carefully and answer the questions that follow. 2718 4a) There is only one set of signals above 1750 cm-1 in the IR spectrum. What functional group does this signal indicate? IR Spectrum (liquid film) 1715 4000 3000 2000 1600 1200 800 V (cm³) 100 80 60 20 זיויויזיויויויויז % of base peak 44 58 M+ 86 Mass Spectrum 4b) Combining information from the IR and NMR spectra, what major functional group is likely present? C5H100 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (100 MHz, CDCl3 solution) DEPT CH2CH₂ ↑ CH 1 proton decoupled 1H NMR Spectrum (400 MHz, CDCl3 solution) 10 solvent 3 4b) How many signals from sp³ carbons in 13 C-NMR 4c) How many different proton chemical environments are in the molecule? 200 160 120 80 40 Ο δ (ppm) 4e) Proposed structure expansion scale 0 20 Hz expansions лиш 9.8 9.7 2.3 2.2 1.0 0.95 ppm 6 8 7 6 5 4 3 2 1 TMS 0 5 (ppm)
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