i. What is the relationship between the two structures in each choice below?
(constitutional isomers, identical compounds, stereoisomers, different conformations of
the same compound etc.) (6 points)
A.
B
c.
ii. Sight down the C-2-C-3 bond, and draw the Newman projection formulas for the
eclipsed and staggered conformations of 1,2-dichloroethane. Indicate gauche and
anti-conformations. Which one(s) is(are) the most stable one(s), which one(s) is(are)
the least stable one(s)? (10 points)
2. i. What is the relationship between the two structures in each choice below?
(constitutional isomers, identical compounds, stereoisomers,different conformations of
the same compound etc.)(6 points)
A.
H OH
H OH
CH
CH3 H
B.
H
CH
CH3 H3C. H
H H
HC
and
H CH3
HC H CH3
C.
ii. Sight down the C-2 - C-3 bond, and draw the Newman projection formulas for the eclipsed and staggered conformations of 1,2-dichloroethane. Indicate gauche and anti-conformations.Which one(s) is(are) the most stable one(s), which one(s) is(are)
the least stable one(s)?10 points