How many different types of protons are present in each compound?
a.
b.
c.
d.
(a)
Interpretation: The different types of protons present in given compound are to be predicted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound, two different types of protons are present.
Explanation of Solution
In the given compound
In the given compound, two different types of protons are present.
(b)
Interpretation: The different types of protons present in given compound are to be predicted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound, two different types of protons are present.
Explanation of Solution
The given compound contains only one type of proton as shown below.
Figure 1
Two carbon atomsare bonded to three other carbon atoms on which three hydrogen atoms are present. Six methyl groups give singlet due to absence of hydrogen atom on the neighboring carbon atom. Thus, only one type of proton is present.
In the given compound, one type of protons is present.
(c)
Interpretation: The different types of protons present in given compound are to be predicted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound, seven different types of protons are present.
Explanation of Solution
The given compound contains seven different types of protons each labeled as
Figure 2
Each proton will give different chemical shift value in NMR spectroscopy.
In the given compound, seven different types of protons are present.
(d)
Interpretation: The different types of protons present in given compound are to be predicted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound, three different types of protons are present.
Explanation of Solution
The given compound contains four different types of protons each labeled as
Figure 3
Since
In the given compound, four different types of protons are present.
(e)
Interpretation: The different types of protons present in given compound are to be predicDted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound, five differenttypes of protons are present.
Explanation of Solution
The given compound contains five different types of protons each labeled as
Figure 4
Each proton will give different chemical shift value in NMR spectroscopy.
In the given compound, five different types of protons are present.
(f)
Interpretation: The different types of protons present in given compound are to be predicted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound, three different types of protons are present.
Explanation of Solution
The given compound contains three different types of protons each labeled as
Figure 5
Each proton will give different chemical shift value in NMR spectroscopy.
In the given compound, three different types of protons are present.
(g)
Interpretation: The different types of protons present in given compound are to be predicted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound three different types of protons are present.
Explanation of Solution
The given compound contains three different types of protons each labeled as
Figure 6
Each proton will give different chemical shift value in NMR spectroscopy.
In the given compound, three different types of protons are present.
(h)
Interpretation: The different types of protons present in given compound are to be predicted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound four different types of protons are present.
Explanation of Solution
The given compound contains four different types of protons each labeled as
Figure 7
Each proton will give different chemical shift value in NMR spectroscopy.
In the given compound four different types of protons are present.
(i)
Interpretation: The different types of protons present in given compound are to be predicted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound, six different types of protons are present.
Explanation of Solution
In the given compound, a chiral carbon atom is bonded to another carbon atom on which two protons and an methyl group is present. Hence, these protons are termed as diasterotropic protons. Each diasterotropic protons gives different chemical shift value.
Therefore, the given compound contains six different types of protons each labeled as
Figure 8
Each proton will give different chemical shift value in NMR spectroscopy.
In the given compound, six different types of protons are present.
(j)
Interpretation: The different types of protons present in given compound are to be predicted.
Concept introduction: Spectroscopy method is used to identify the structure of the molecule. It is based on the interactions between matter and electromagnetic radiations. Proton NMR spectroscopy identifies the number of hydrogen atoms present in a molecule and the nature of the functional group. The value of chemical peaks depends upon the chemical environment around the hydrogen atom.
Answer to Problem 14.35P
In the given compound four different types of protons are present.
Explanation of Solution
The given compound contains four different types of protons each labeled as
Figure 9
Each proton will give different chemical shift value in NMR spectroscopy.
In the given compound four different types of protons are present.
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Chapter 14 Solutions
Organic Chemistry
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