Draw 1-bromo-2-iodoethane. Looking through the C-C bond, draw all 6 rotational conformations as Newman projections. Label the co
nformations as anti, gauche or eclipsed. Then, rank them in terms of lowest to highest energy. Explain your reasoning in 2-3 sentences.
1 answer:
Answer:
D > F = B > E = C > A
Explanation:
Newman projection is useful in studying the stereochemistry of the alkanes.
In the Newman projection, molecules are visualized from front to back. The front carbon is represented with dot whereas the back carbon with circle. different spacial arrangement of substituents around carbon are called conformers. Three conformers are staggered, eclipsed and Gauche.
Staggered is the most stable and Eclipsed is the most unstable. Staggered is also called anti
The 6 conformers of 1-bromo-2-iodoethane are shown in the attachment;
Order of the stability is as follows:
D > F = B > E = C > A
Anti is most stable because bulky group Br and I are opposite and hence stable.
You might be interested in
Answer:
See explanation and image attached
Explanation:
When 1 mole of hydrogen is added to 3-hexyne, the addition occurs on the same face or side of the triple bond to yield cis-2-hexene in the presence of lindlar catalyst which prevents further hydrogenation. This is known as syn addition.
The syn addition is achieved because the hydrogen molecule is first adsorbed on the surface of the palladium metal and is subsequently attached to the same face of the triple bond in 3-hexyne as shown in the image attached to this answer.
