1. Circle the structure that corresponds to the given IR spectrum, mass spectrum, coupled 3C NMR spectrum, and H NMR spectrum. a. Assign the relevant peaks in the IR spectrum for the circled structure. b. Assign the molecular ion and base peaks in the mass spectrum for the circled structure and draw the structure of the fragment ion corresponding to the base peak. c. Assign the peak clusters in the coupled 13C NMR spectrum for the circled structure. d. Assign the peak clusters in the 'H NMR spectrum for the circled structure. OH "OH 0.8 0.6- 0.4 0.2 3000 2000 1000 Wavenumber (cm-1) 100 80 60 40- 20 0.0 0.0 20 40 60 80 100 120 m/z Rel. Intensity Transmitance

1. Circle the structure that corresponds to the given IR spectrum, mass spectrum, coupled 3C NMR spectrum, and H NMR spectrum. a. Assign the relevant peaks in the IR spectrum for the circled structure. b. Assign the molecular ion and base peaks in the mass spectrum for the circled structure and draw the structure of the fragment ion corresponding to the base peak. c. Assign the peak clusters in the coupled 13C NMR spectrum for the circled structure. d. Assign the peak clusters in the 'H NMR spectrum for the circled structure. OH "OH 0.8 0.6- 0.4 0.2 3000 2000 1000 Wavenumber (cm-1) 100 80 60 40- 20 0.0 0.0 20 40 60 80 100 120 m/z Rel. Intensity Transmitance

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL3: Carbon (13c) Nmr Spectroscopy

Section: Chapter Questions

Problem 2CTQ

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220 200 180 I60 140 120 100 80 20 PPM (+) POk dvea 3 peak area =2 peak 10 PPM
2. Circle the structure that corresponds to the given IR spectrum, mass spectrum, coupled 13C NMR spectrum, and 'H NMR spectrum. a. Assign the relevant peaks in the IR spectrum for the circled structure. b. Assign the molecular ion and base peaks in the mass spectrum for the circled structure and draw the structure of the fragment ion corresponding to the base peak. c. Assign the peak clusters in the coupled 13C NMR spectrum for the circled structure. d. Assign the peak clusters in the 'H NMR spectrum for the circled structure. Но, Но 0.8 0.6 0.4 0.2 0.0 2000 Wavenumber (cm-1) 3000 1000 100 80 60- 40- 20- 0.0+ 0.0 20 40 60 80 100 m/z Transmitance Rel. Intensity
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