Mr. Potato Head

The shift at 4.52ppm represents hydrogen a. This hydrogen is a doublet of quartets. It is more downfield and less shielded than the majority of the other hydrogens due to the double bond. It has coupling constants of 2.7Hz and 0.9Hz.

The shift at 4.90ppm represents hydrogen b. This hydrogen is a doublet of quartets. It is more downfield and less shielded than hydrogen a since it is cis to the –CH3 group. It has coupling constants of 3.0Hz and 1.5Hz.

The shift at 1.73ppm represents the hydrogens labeled c. These three hydrogens are a doublet of doublets. These hydrogens have 2 neighbors. The neighbors of these H’s are Hb and Ha. They have coupling constants of 1.5Hz and 0.9Hz. These hydrogens are shielded, but not as shielded as hydrogen d because the hydrogens labeled d are terminal hydrogens.

The shift at 1.57ppm represents hydrogen d. These six hydrogens are a singlet. These hydrogens are shielded because they are terminal hydrogens that are not near any electronegative atoms.

The shift at 2.68ppm represents hydrogen e. This hydrogen is a doublet of doublet of doublets. This hydrogen has coupling constants consist of of 14.2Hz, 10.6Hz, and 6.8Hz. They are no near any withdrawing electrons, so they are shielded; although, they are not as shielded as hydrogen m.

The shift at 1.35-1.15ppm represents the hydrogens labeled f. These two hyrogens are a multiplet. These hydrogens have two neighbors. These hydrogens are shielded because there not any electrons withdrawing from hydrogens.

The shift at 0.99ppm represents the hydrogens labeled g. These hydrogens are a singlet. They are the furthest upfield because they are the most shielded of any of the H’s on the molecule. They have no neighbors.

The shift at 1.55-1.45ppm represents hydrogen k or i. This hydrogen is a multiplet. These hydrogens are part of a muliplet because they are in a ring. These hydrogens are relatively shielded because they are not by any electronegative atoms that would tend to withdraw electrons.

The shift at 2.35-2.25ppm represents hydrogen m. This hydrogen is a multiplet due to its location in a ring. The hydrogen is shielded and does not have any withdrawing electrons.

The shift at 3.76ppm represents hydrogen n. This hydrogen is a triplet. Hydrogen n is near two oxygens, so that is why the peak is more downfield than all of the peaks that are more upfield than hydrogen n. It has a coupling constant of 1.2Hz.

The shift at 6.35ppm represents hydrogen o. This hydrogen is a doublet. It is located the farthest downfield due to the proximity to the oxygen. It is also near a double bond which makes it more downfield. It has a coupling constant of 10.2Hz.

The shift at 5.80ppm represents hydrogen p. This hydrogen is a doublet. This hydrogen is downfield and deshielded due to the double bond. It is more upfield than Q because it is cis to hydrogen o. It has coupling constants of 10.3Hz and 1.1Hz.

The shift at 6.24ppm represents hydrogen Q. This hydrogen is a doublet. This hydrogen is downfield and deshielded due to the double bond. It is more downfield than p because it is trans to hydrogen o. It has coupling constants of 17.4Hz and 1.0Hz.

Hydrogens	Explanation
a	The shift at 4.52ppm represents hydrogen a. This hydrogen is a doublet of quartets. It is more downfield and less shielded than the majority of the other hydrogens due to the double bond. It has coupling constants of 2.7Hz and 0.9Hz.
b	The shift at 4.90ppm represents hydrogen b. This hydrogen is a doublet of quartets. It is more downfield and less shielded than hydrogen a since it is cis to the –CH3 group. It has coupling constants of 3.0Hz and 1.5Hz.
c	The shift at 1.73ppm represents the hydrogens labeled c. These three hydrogens are a doublet of doublets. These hydrogens have 2 neighbors. The neighbors of these H’s are Hb and Ha. They have coupling constants of 1.5Hz and 0.9Hz. These hydrogens are shielded, but not as shielded as hydrogen d because the hydrogens labeled d are terminal hydrogens.
d	The shift at 1.57ppm represents hydrogen d. These six hydrogens are a singlet. These hydrogens are shielded because they are terminal hydrogens that are not near any electronegative atoms.
e	The shift at 2.68ppm represents hydrogen e. This hydrogen is a doublet of doublet of doublets. This hydrogen has coupling constants consist of of 14.2Hz, 10.6Hz, and 6.8Hz. They are no near any withdrawing electrons, so they are shielded; although, they are not as shielded as hydrogen m.
f	The shift at 1.35-1.15ppm represents the hydrogens labeled f. These two hyrogens are a multiplet. These hydrogens have two neighbors. These hydrogens are shielded because there not any electrons withdrawing from hydrogens.
g	The shift at 0.99ppm represents the hydrogens labeled g. These hydrogens are a singlet. They are the furthest upfield because they are the most shielded of any of the H’s on the molecule. They have no neighbors.
h, j, l	The shift at 2.20-1.80ppm represents hydrogen(s) h,j, and/or l. These five hydrogens are a multiplet due to their location in a ring. These hydrogens are shielded and do not have withdrawing electrons.
k, i	The shift at 1.55-1.45ppm represents hydrogen k or i. This hydrogen is a multiplet. These hydrogens are part of a muliplet because they are in a ring. These hydrogens are relatively shielded because they are not by any electronegative atoms that would tend to withdraw electrons.
m	The shift at 2.35-2.25ppm represents hydrogen m. This hydrogen is a multiplet due to its location in a ring. The hydrogen is shielded and does not have any withdrawing electrons.
n	The shift at 3.76ppm represents hydrogen n. This hydrogen is a triplet. Hydrogen n is near two oxygens, so that is why the peak is more downfield than all of the peaks that are more upfield than hydrogen n. It has a coupling constant of 1.2Hz.
o	The shift at 6.35ppm represents hydrogen o. This hydrogen is a doublet. It is located the farthest downfield due to the proximity to the oxygen. It is also near a double bond which makes it more downfield. It has a coupling constant of 10.2Hz.
p	The shift at 5.80ppm represents hydrogen p. This hydrogen is a doublet. This hydrogen is downfield and deshielded due to the double bond. It is more upfield than Q because it is cis to hydrogen o. It has coupling constants of 10.3Hz and 1.1Hz.
Q	The shift at 6.24ppm represents hydrogen Q. This hydrogen is a doublet. This hydrogen is downfield and deshielded due to the double bond. It is more downfield than p because it is trans to hydrogen o. It has coupling constants of 17.4Hz and 1.0Hz.