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Select the correct structural fragments for the NMR of the unknown compound with the formula C5H100. b 3.0 Peak a b 000 00 с d 2.8 2.6 Chemical Shift (ppm) 2.41 2.13 1.61 0.92 -CH2(a)-CH2(c) -CH2(a)-CH2(c)-CH3(d) -CH2(c)-CH3(d) -CH3(b) -CH2(c)-CH3(b) a 2H 2.4 3H 2.2 2.0 Integration Multiplicity 2H 3H 2H 3H 1.8 с 2H 1. illi 1.6 1.4 Structural Fragments 1.2 3H 1.0 0.8 0.6 PPM

Select the correct structural fragments for the NMR of the unknown compound with the formula C5H100. b 3.0 Peak a b 000 00 с d 2.8 2.6 Chemical Shift (ppm) 2.41 2.13 1.61 0.92 -CH2(a)-CH2(c) -CH2(a)-CH2(c)-CH3(d) -CH2(c)-CH3(d) -CH3(b) -CH2(c)-CH3(b) a 2H 2.4 3H 2.2 2.0 Integration Multiplicity 2H 3H 2H 3H 1.8 с 2H 1. illi 1.6 1.4 Structural Fragments 1.2 3H 1.0 0.8 0.6 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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Title: NMR Analysis of an Unknown Compound with Formula C₅H₁₀O** **Introduction:** In this exercise, we aim to select the correct structural fragments for the NMR of an unknown compound with the molecular formula C₅H₁₀O. The provided NMR spectrum helps identify the possible proton arrangements based on their chemical environment. **NMR Spectrum Overview:** The NMR spectrum displayed shows four distinct peaks labeled a, b, c, and d. Each peak represents a different chemical shift in parts per million (ppm) and varies in integration and multiplicity. **Peak Details:** 1. **Peak a** - Chemical Shift: 2.41 ppm - Integration: 2H - Multiplicity: Not specified 2. **Peak b** - Chemical Shift: 2.13 ppm - Integration: 3H - Multiplicity: Not specified 3. **Peak c** - Chemical Shift: 1.61 ppm - Integration: 2H - Multiplicity: Not specified 4. **Peak d** - Chemical Shift: 0.92 ppm - Integration: 3H - Multiplicity: Not specified **Structural Fragment Options:** The following structural fragments are provided for selection. Please choose the fragment that corresponds to the observed peaks: - \(-\text{CH}_2\)(a)-\text{CH}_2\)(c)- - \(-\text{CH}_2\)(a)-\text{CH}_2\)(c)-\text{CH}_3\)(d) - \(-\text{CH}_2\)(c)-\text{CH}_3\)(d) - \(-\text{CH}_3\)(b) - \(-\text{CH}_2\)(c)-\text{CH}_3\)(b) **Conclusion:** Utilize the information provided by the NMR chemical shifts, integration values, and multiplicity to determine the most appropriate structural fragment for each peak. This exercise enhances the understanding of interpreting NMR spectra and aids in elucidating the structure of organic compounds.
Transcribed Image Text:**Title: NMR Analysis of an Unknown Compound with Formula C₅H₁₀O** **Introduction:** In this exercise, we aim to select the correct structural fragments for the NMR of an unknown compound with the molecular formula C₅H₁₀O. The provided NMR spectrum helps identify the possible proton arrangements based on their chemical environment. **NMR Spectrum Overview:** The NMR spectrum displayed shows four distinct peaks labeled a, b, c, and d. Each peak represents a different chemical shift in parts per million (ppm) and varies in integration and multiplicity. **Peak Details:** 1. **Peak a** - Chemical Shift: 2.41 ppm - Integration: 2H - Multiplicity: Not specified 2. **Peak b** - Chemical Shift: 2.13 ppm - Integration: 3H - Multiplicity: Not specified 3. **Peak c** - Chemical Shift: 1.61 ppm - Integration: 2H - Multiplicity: Not specified 4. **Peak d** - Chemical Shift: 0.92 ppm - Integration: 3H - Multiplicity: Not specified **Structural Fragment Options:** The following structural fragments are provided for selection. Please choose the fragment that corresponds to the observed peaks: - \(-\text{CH}_2\)(a)-\text{CH}_2\)(c)- - \(-\text{CH}_2\)(a)-\text{CH}_2\)(c)-\text{CH}_3\)(d) - \(-\text{CH}_2\)(c)-\text{CH}_3\)(d) - \(-\text{CH}_3\)(b) - \(-\text{CH}_2\)(c)-\text{CH}_3\)(b) **Conclusion:** Utilize the information provided by the NMR chemical shifts, integration values, and multiplicity to determine the most appropriate structural fragment for each peak. This exercise enhances the understanding of interpreting NMR spectra and aids in elucidating the structure of organic compounds.
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