# Organic ChemistrySpectroscopy: Look at the given molecules.

1) How many different kinds of H signal would you see in the H NMR of EACH MOLECULE. (Number of chemical environments).

2) Look closer at the indicated C-H. How many sub-peaks would you expect in the H NMR signal of the indicated H? (coupling).

3) Where would you expect the functional group to show up in the IR?

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Image transcriptions

+ H O OCH3 How many different kinds of H signal would you see in the H NMR of the WHOLE molecule? Enter your answer here How many sub-peaks would you expect in the H NMR signal of the indicated H? Enter your answer here Where would you expect the C=O bond to show up in the IR? O 3200-3400 cm-1 (broad) O 3200-3400 cm-1 (doubled) O 3300 cm-1 (sharp) O 3100 cm-1 O 2950 cm-1 (complex) O 2200 cm-1 O 1750-1700 cm-1 O 1680-1620 cm-1 O 1600-1500 cm-1 O 1210 cm-1 O 1500-500 cm-1

H How many different kinds of H signal would you see in the H NMR of the WHOLE molecule? Enter your answer here How many sub-peaks would you expect in the H NMR signal of the indicated H? Enter your answer here Where would you expect the CC triple bond to show up in the IR? O 3200-3400 cm-1 (broad) O 3200-3400 cm-1 (doubled) O 3300 cm-1 (sharp) O 3100 cm-1 O 2950 cm-1 (complex) O 2200 cm-1 O 1750-1700 cm-1 1680-1620 cm-1 O 1600-1500 cm-1 O 1210 cm-1 1500-500 cm-1

H IZ How many different kinds of H signal would you see in the H NMR of the WHOLE molecule? Enter your answer here How many sub-peaks would you expect in the H NMR signal of the indicated H? Enter your answer here Where would you expect the N-H single bond to show up in the IR? O 3200-3400 cm-1 (broad) O 3200-3400 cm-1 (doubled) O 3300 cm-1 (sharp) O 3100 cm-1 O 2950 cm-1 (complex) O 2200 cm-1 O 1750-1700 cm-1 O 1680-1620 cm-1 O 1600-1500 cm-1 O 1210 cm-1 O 1500-500 cm-1

H Br How many different kinds of H signal would you see in the H NMR of the WHOLE molecule? Enter your answer here How many sub-peaks would you expect in the H NMR signal of the indicated H? Enter your answer here Where would you expect the C=C double bond to show up in the IR? O 3200-3400 cm-1 (broad) O 3200-3400 cm-1 (doubled) O 3300 cm-1 (sharp) O 3100 cm-1 O 2950 cm-1 (complex) O 2200 cm-1 O 1750-1700 cm-1 O 1680-1620 cm-1 O 1600-1500 cm-1 O 1210 cm-1 O 1500-500 cm-1

Where would you expect the sp2 C-H bond to show up in the IR? O 3200-3400 cm-1 (broad) O 3200-3400 cm-1 (doubled) O 3300 cm-1 (sharp) O 3100 cm-1 O 2950 cm-1 (complex) O 2200 cm-1 O 1750-1700 cm-1 O 1680-1620 cm-1 O 1600-1500 cm-1 O 1210 cm-1 O 1500-500 cm-1

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