Concept explainers
- (a) (a.1)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The number of signals in
For each set of chemically equivalent protons, there will be one signal. For example, the
- (a) (a.1)
Answer to Problem 46P
Compound (1) will show 5 signals in its
Explanation of Solution
The set of chemically equivalent protons in a compound produces a separate signal in
(a.2)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The number of signals in
For each set of chemically equivalent protons, there will be one signal. For example, the
(a.2)
Answer to Problem 46P
Compound (2) will show 5 signals in its
Explanation of Solution
The set of chemically equivalent protons in a compound produces a separate signal in
(a.3)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The number of signals in
For each set of chemically equivalent protons, there will be one signal. For example, the
(a.3)
Answer to Problem 46P
Compound (3) will show 4 signals in its
Explanation of Solution
The set of chemically equivalent protons in a compound produces a separate signal in
(a.4)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The number of signals in
For each set of chemically equivalent protons, there will be one signal. For example, the
(a.4)
Answer to Problem 46P
Compound (4) will show 2 signals in its
Explanation of Solution
The set of chemically equivalent protons in a compound produces a separate signal in
(a.5)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The number of signals in
For each set of chemically equivalent protons, there will be one signal. For example, the
(a.5)
Answer to Problem 46P
Compound (5) will show 3 signals in its
Explanation of Solution
The set of chemically equivalent protons in a compound produces a separate signal in
(a.6)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The number of signals in
For each set of chemically equivalent protons, there will be one signal. For example, the
(a.6)
Answer to Problem 46P
Compound (6) will show 3 signals in its
Explanation of Solution
The set of chemically equivalent protons in a compound produces a separate signal in
- (b) (b.1)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The signals in the spectrum of a compound are proportional to the number of carbons that are present in the different environment within the molecule. The carbon which is present in the electron-rich environment shows a signal at a lower frequency and vice-versa. Therefore, the carbons that are present nearest to the electron-withdrawing groups produce a high-frequency signal.
- (b) (b.1)
Answer to Problem 46P
Compound (1) will show 7 signals in its
Explanation of Solution
The set of chemically equivalent carbon in a compound produces a separate signal in
(b.2)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The signals in the spectrum of a compound are proportional to the number of carbons that are present in the different environment within the molecule. The carbon which is present in the electron-rich environment shows a signal at a lower frequency and vice-versa. Therefore, the carbons that are present nearest to the electron-withdrawing groups produce a high-frequency signal.
(b.2)
Answer to Problem 46P
Compound (2) will show 7 signals in its
Explanation of Solution
The set of chemically equivalent carbon in a compound produces a separate signal in
(b.3)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The signals in the spectrum of a compound are proportional to the number of carbons that are present in the different environment within the molecule. The carbon which is present in the electron-rich environment shows a signal at a lower frequency and vice-versa. Therefore, the carbons that are present nearest to the electron-withdrawing groups produce a high-frequency signal.
(b.3)
Answer to Problem 46P
Compound (3) will show 5 signals in its
Explanation of Solution
The set of chemically equivalent carbon in a compound produces a separate signal in
(b.4)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The signals in the spectrum of a compound are proportional to the number of carbons that are present in the different environment within the molecule. The carbon which is present in the electron-rich environment shows a signal at a lower frequency and vice-versa. Therefore, the carbons that are present nearest to the electron-withdrawing groups produce a high-frequency signal.
(b.4)
Answer to Problem 46P
Compound (4) will show 2 signals in its
Explanation of Solution
The set of chemically equivalent carbon in a compound produces a separate signal in
(b.5)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The signals in the spectrum of a compound are proportional to the number of carbons that are present in the different environment within the molecule. The carbon which is present in the electron-rich environment shows a signal at a lower frequency and vice-versa. Therefore, the carbons that are present nearest to the electron-withdrawing groups produce a high-frequency signal.
(b.5)
Answer to Problem 46P
Compound (5) will show 2 signals in its
Explanation of Solution
The set of chemically equivalent carbon in a compound produces a separate signal in
(b.6)
Interpretation:
Number of signals expected in each of the following compounds in
Concept introduction:
The signals in the spectrum of a compound are proportional to the number of carbons that are present in the different environment within the molecule. The carbon which is present in the electron-rich environment shows a signal at a lower frequency and vice-versa. Therefore, the carbons that are present nearest to the electron-withdrawing groups produce a high-frequency signal.
(b.6)
Answer to Problem 46P
Compound (6) will show 4 signals in its
Explanation of Solution
The set of chemically equivalent carbon in a compound produces a separate signal in
Want to see more full solutions like this?
Chapter 15 Solutions
Organic Chemistry
- Assign as many resonances as you can to specific carbon atoms in the 13C NMR spectrum of ethyl benzoate.arrow_forwardWhat protons in alcohol A give rise to each signal in its 1H NMR spectrum? Explain all splitting patterns observed for absorptions between 0–7 ppm.arrow_forwarda. How many signals are in its 13C NMR spectrum?b. Which signal is at the lowest frequency? CH3CH2CH2Brarrow_forward
- How many unique 13C NMR and 1H NMR signals exist in the spectrum for the compound: 1,3-dibromobenzene?arrow_forward3. How many signals would you expect in the 1H and 13C NMR spectrum of each molecule? H. ethyl p-anisate (licorice) diacetyl (buttered popcorn) hexanal (tutti-fruitti) 1H 13C 1H 13C 1H 13Carrow_forwarda.) Annotate the 1H - NMR spectrum by labeling each signal (A-Z) and assigning them to the correct hydrogens on the structure of your unknown molecule Annotate the 13C- NMR spectrum by labeling each signal (A-Z) and then assign the A-Z labels to the correct carbons on the structure of your unknown molecule.arrow_forward
- Which region (A or B) will Ethanol appear in the NMR spectrum and which region (A or B) will Ethanal (2- carbon aldehyde or acetaldehyde ) appear in the NMR spectrum ? Explain your answerarrow_forward(3) These natural compounds will have different numbers of 1H-NMR signals in different NMR solvents like CDC13 and methanol-d4. How many signals do you anticipate for each compound respectively in CDC13 and methanol-d4? LOCH 3 OHC. vanillin OH LOH acetoaminophen HO thymolarrow_forward2) The molecule corresponding to the NMR spectrum shown most likely contains which of the following functional groups? 9 8 7 a. Aromatic ring b. Ether c. Aldehyde d. Alkene e. Alcohol 6 5 ppm 4 3 2 1 0arrow_forward
- How many signal(s) will appear in the H-NMR spectrum of acetone (structure shown below)? 4 O 1arrow_forwardFor each of the molecules in Problem 16.39, determine how many signals should appear in its 13C NMR spectrum.arrow_forwardHow many lines are observed in the 13C NMR spectrum of each attached compound ?arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning