Propose structures consistent with each set of data: (a) a hydrocarbon with a molecular ion at m / z = 68and IR absorptions at 3310, 3000–2850, and 2120 cm − 1 ,(b) a compound containing C, H and O witha molecular ion at m / z = 60 and IR absorptions at 3600–3200 and 3000–2850 cm − 1 .
Propose structures consistent with each set of data: (a) a hydrocarbon with a molecular ion at m / z = 68and IR absorptions at 3310, 3000–2850, and 2120 cm − 1 ,(b) a compound containing C, H and O witha molecular ion at m / z = 60 and IR absorptions at 3600–3200 and 3000–2850 cm − 1 .
Solution Summary: The author explains the molecular ion structure of a hydrocarbon with IR absorption at 3000-2850 cm-1.
Propose structures consistent with each set of data: (a) a hydrocarbon with a molecular ion at
m
/
z
= 68and IR absorptions at 3310, 3000–2850, and 2120
cm
−
1
,(b) a compound containing
C, H
and
O
witha molecular ion at
m
/
z
= 60 and IR absorptions at 3600–3200 and 3000–2850
cm
−
1
.
Q2: Ranking Acidity
a) Rank the labeled protons in the following molecule in order of increasing pKa. Briefly
explain the ranking. Use Table 2.2 as reference.
Ha
Нь
HC
H-N
Ha
OHe
b) Atenolol is a drug used to treat high blood pressure. Which of the indicated N-H bonds is
more acidic? Explain. (Hint: use resonance structures to help)
Name the functional groups on atenolol.
H
H-N
atenolol
Ν
H-N
OH Н
Answer d, e, and f
If the rotational constant of a molecule is B = 120 cm-1, it can be stated that the transition from 2←1:a) gives rise to a line at 120 cm-1b) is a forbidden transitionc) gives rise to a line at 240 cm-1d) gives rise to a line at 480 cm-1
Chapter 13 Solutions
Package: Loose Leaf for Organic Chemistry with Biological Topics with Connect Access Card
Fundamentals of Anatomy & Physiology (11th Edition)
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