Concept explainers
(a)
Interpretation:
Number of signals and multiplicity of each signal for the given compounds has to be indicatred.
Concept introduction:
The number of signals in
The Single
For example, in propane
The signal produced by ‘a’ protons split into 3 peaks due to the adjacent ‘b’ protons called as a triplet calculated as,
Here
The signal produced by ‘b’ protons is split into 4 peaks due to the adjacent nonequivalent ‘a’ protons called as a quartet calculated as,
Here
Splitting occurs only due to nonequivalent protons that are the protons present in the different chemical environment.
(b)
Interpretation: Number of signals and multiplicity of each signal for the given compounds has to be indicated.
Concept introduction:
The number of signals in
The Single
For example, in propane
The signal produced by ‘a’ protons split into 3 peaks due to the adjacent ‘b’ protons called as a triplet calculated as,
Here
The signal produced by ‘b’ protons is split into 4 peaks due to the adjacent non equivalent ‘a’ protons called as a quartet calculated as,
Here
Splitting occurs only due to nonequivalent protons that are the protons present in the different chemical environment.
(c)
Interpretation: To indicate the number of signals and multiplicity of each signal for the given compounds.
Concept introduction: The number of signals in
The Single
For example, in propane
The signal produced by ‘a’ protons split into 3 peaks due to the adjacent ‘b’ protons called as a triplet calculated as,
Here
The signal produced by ‘b’ protons is split into 4 peaks due to the adjacent nonequivalent ‘a’ protons called as a quartet calculated as,
Here
Splitting occurs only due to nonequivalent protons that are the protons present in the different chemical environment.
(d)
Interpretation: To indicate the number of signals and multiplicity of each signal for the given compounds.
Concept introduction: The number of signals in
The Single
For example, in propane
The signal produced by ‘a’ protons split into 3 peaks due to the adjacent ‘b’ protons called as a triplet calculated as,
Here
The signal produced by ‘b’ protons is split into 4 peaks due to the adjacent nonequivalent ‘a’ protons called as a quartet calculated as,
Here
Splitting occurs only due to nonequivalent protons that are the protons present in the different chemical environment.
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Essential Organic Chemistry (3rd Edition)
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