Organic Chemistry Semester 1 LABORATORY MANUAL - Moravian ...

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Nuclear Magnetic Resonance Appendix E11 Part V. Techniques and Theory Table 4: Alkene Chemical Shifts: (continued) Compounds 13 C ν (δ) 1 Η ν (δ) CH 3 CH 3 C C 19, 127 1.6 CH 3 CH 3 H CH 3 C CH 3 H C CH 2 22, 32, 111, 142 1.0, 2.6, 4.6, 5.1 CH 3 H C C CH 3 11, 125 1.5, 5.1 H b. Now use your conclusion to predict approximate 13 C & 1 H δ values for the absorptions resulting from the nuclei in the compounds in table 5. Explain how your predictions were derived. Table 5: Alkyne Chemical Shift Predictions: Compounds 13 C ν (δ) 1 Η ν (δ) H C C H CH 3 C C H CH 3 C C CH 3 CH 3 CH 2 C C H H CH 3 C C C H CH 3
Nuclear Magnetic Resonance Appendix E12 Part V. Techniques and Theory 4. Exploration 2 Compare your predictions for the chemical shifts of protons in alkynes with the experimental values given in Table 6. Table 6: Alkyne Chemical Shifts: Compounds 13 C ν (δ) 1 Η ν (δ) H C C H 72 2.4 CH 3 C C H 4, 68, 80 1.7, 2.1 CH 3 C C CH 3 1, 76 1.7 CH 3 CH 2 C C H 12, 13, 67, 86 1.1, 1.8, 2.1 H CH 3 C C C H 21, 22, 68, 89 1.1, 1.9, 2.1 CH 3 5. Invention 2 What conclusions can you draw from the comparison of the data in Tables 5 & 6? Explain.
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MORAVIAN COLLEGE CHEMISTRY DEPARTME
Page 3 and 4: 2 Introduction PART V: Appendix A T
Page 5 and 6: Fall 2008 4 Part I. Introduction As
Page 7 and 8: Fall 2008 6 Part I. Introduction As
Page 9 and 10: Fall 2008 8 Part I. Introduction We
Page 11 and 12: Fall 2008 10 Part I. Introduction n
Page 13 and 14: Fall 2008 12 Part I. Introduction r
Page 15 and 16: Fall 2008 14 Part II. Lab Rules and
Page 17 and 18: Fall 2008 16 Part III. Lab Record &
Page 25 and 26: Fall 2008 24 Part IV. Experiments P
Page 27 and 28: Extraction Appendix B1 Part V. Tech
Page 29 and 30: Infrared Spectroscopy Appendix C1 P
Page 37 and 38: Mass Spectrometry Appendix D1 Part
Page 39 and 40: c Mass Spectrometry Appendix D3 Par
Page 45 and 46: Nuclear Magnetic Resonance Appendix
Page 53: Nuclear Magnetic Resonance Appendix
Page 65: Nuclear Magnetic Resonance Appendix
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Organic Chemistry Semester 1 LABORATORY MANUAL - Moravian ...

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