Chapter 3: Q16 P-c. (page 85)
Sight along the C2-C1 bond of 2-methylpropane (isobutane).
(c) Make a graph of energy versus angle of rotation around the C2-C1 bond.
Short Answer
(c)

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Chapter 3: Q16 P-c. (page 85)
Sight along the C2-C1 bond of 2-methylpropane (isobutane).
(c) Make a graph of energy versus angle of rotation around the C2-C1 bond.
(c)

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Draw the structures of the following molecules:
(b) Ethylenimine, , a substance used in the synthesis of
melamine polymers; it contains no multiple bonds.
Increased substitution around a bond leads to increased strain. Take the four substituted butanes listed below, for example. For each compound, sight along the C2–C3 bond and draw Newman projections of the most stable and least stable conformations. Use the data in Table 3-5 to assign strain-energy values to each conformation. Which of the eight conformations is most strained? Which is least strained?
(a) 2-Methylbutane
(b) 2,2-Dimethylbutane
(c) 2,3-Dimethylbutane
(d) 2,2,3-Trimethylbutane
Give IUPAC names for the following alkanes, and convert each drawing
into a skeletal structure.

Draw structures of alkanes that meet the following descriptions:
(b) An alkane that contains an isopropyl group
Draw structures for the following:
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