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Organic Chemistry - Solutions Manual

1957 SOLVED PROBLEMS

Question: 3.43

What are the relative energies of the three possible staggered conformations around the C2–C3 bond in 2,3-dimethylbutane? (See Problem 3.42.) ...

Verified Answer:

Each CH_3 ↔ CH_3 gau...
Question: 3.42

Consider 2-methylbutane (isopentane). Sighting along the C2–C3 bond: (a) Draw a Newman projection of the most stable conformation. (b) Draw a Newman projection of the least stable conformation. (c) If a CH3 ↔ CH3 eclipsing interaction costs 11 kJ/mol (2.5 kcal/mol) and a CH3 ↔ CH3 gauche interaction ...

Verified Answer:

(a), (b) The energy difference between the two co...
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