Homework Answers
Interpretation of spectrum
IR
2850-2950 cm-1 for aliphatic C-H stretch
1620 cm-1 for C=O stretch
2770 and 2850 cm-1 for aldehydic stretching
1H NMR
H1 : 0.9 ppm (triplet) for CH3 next to CH2
H2 : 1.6 ppm (doublet of pentet) for CH2 protons between CH3 and CH
H3 : 2.1 ppm (pentet) for CH between two CH2's
H4 : 9.6 ppm (singlet) for aldehydic proton
13C
11.44 ppm for CH3 carbon
21.45 for CH2 carbon
54.95 ppm for CH carbon
205.64 ppm for C=O carbon
Final structure of compound,
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Use
the following spectra to determine the compound. Label the IR. The
H-NMR has 5 peaks...
91T Q9) Identify the unknown aromatic compound using the following spectra. Use the 'H NMR splitting...
91T Q9) Identify the unknown aromatic compound using the following spectra. Use the 'H NMR splitting in the aromatic region to determine the substitution pattern on the aromatic ring. Label and assign all relevant peaks on the IR and NMR spectra. For the Mass Spectrum, label the molecular ion peak, base peak, and any halogen isotopes, along with any mass losses (change in m/z between peaks) that are helpful in determining your structure. ortho meta arbitrary units 140 160 180...
thank you in advance Label the significant peaks in the IR and NMR spectra. When analyzing...
thank you in advance
Label the significant peaks in the IR and NMR spectra. When analyzing the signals in the 'H NMR, be sure to include all appropriate information. For example: 3H, singlet, 0 neighbors, and c (the letter referring to the corresponding unique type of hydrogens that were labeled in the structure). It is recommended to provide more analysis for each signal than what is described above, when necessary, such as labeling any coupling constants if any are provided....
A compound with molecular formula C7H160 displays the following IR and 'H-NMR spectra. The 13C NMR...
A compound with molecular formula C7H160 displays the following IR and 'H-NMR spectra. The 13C NMR data suggest that there is some symmetry within the molecule. a) Calculate the degrees of unsaturation (DU) for the compound in the space provided below. DU = b) Identify and label the two indicated peaks in the IR spectrum in the boxes provided. Identify and label ALL peaks in the 'H NMR spectrum below. The numbers given on the 'H NMR are integration values...
Label the significant peaks in the IR and NMR spectra. When analyzing the signals in the 'HNMR, b...
Label the significant peaks in the IR and NMR spectra. When analyzing the signals in the 'HNMR, be sure to include all appropriate information. For example: 3H, singlet, 0 neighbors, and c (the letter referring to the corresponding unique type of hydrogens that were labeled in the structure). It is recommended to provide more analysis for each signal than what is described above, when necessary, such as labeling any coupling constants if any are provided For NMR label each peak...
A compound with molecular formula C7H160 displays the following IR and 'H-NMR spectra. The 13C NMR...
A compound with molecular formula C7H160 displays the following IR and 'H-NMR spectra. The 13C NMR data suggest that there is some symmetry within the molecule. a) Calculate the degrees of unsaturation (DU) for the compound in the space provided below. DU = b) Identify and label the two indicated peaks in the IR spectrum in the boxes provided. Identify and label ALL peaks in the 'H NMR spectrum below. The numbers given on the 'H NMR are integration values...
A compound with molecular formula C H160 displays the following IR and 'H-NMR spectra. The 13C...
A compound with molecular formula C H160 displays the following IR and 'H-NMR spectra. The 13C NMR data suggest that there is some symmetry within the molecule. a) Calculate the degrees of unsaturation (DU) for the compound in the space provided below. DU = b) Identify and label the two indicated peaks in the IR spectrum in the boxes provided. Identify and label ALL peaks in the 'H NMR spectrum below. The numbers given on the 'H NMR are integration...
Compound 3: Use the information provided below and the IR and NMR spectra on the next...
Compound 3: Use the information provided below and the IR and NMR spectra on the next page to answer the following questions. a) An MS was taken of compound 3 and the table is given below. Determine the molecular formula of 3 from the MS given below. . relative abundance m/z 152 100 153 9.7 154 4.5 b) Calculate the Index of Hydrogen Deficiency/Degree of Unsaturation for the molecule. c) Using the IR spectrum and the 'H- and 13C-NMR spectra...
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) hav...
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) having the molecular formula C4H,02. Part 1 out of 2 Compound A: 1H NMR of A 2 H 2 H 1H 7 6 2 0 ppm 100 IR [A] 50 0 4000 3500 3000 2500 2000 1500 1000 500
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) having the molecular...
A compound with molecular formula C7H160 displays the following IR and 'H-NMR spectra. The 13C NMR data suggest that th...
A compound with molecular formula C7H160 displays the following IR and 'H-NMR spectra. The 13C NMR data suggest that there is some symmetry within the molecule. a) Calculate the degrees of unsaturation (DU) for the compound in the space provided below. DU = b) Identify and label the two indicated peaks in the IR spectrum in the boxes provided. Identify and label ALL peaks in the 'H NMR spectrum below. The numbers given on the 'H NMR are integration values...
This compound has the molecular formula CsHino. It is IR 'Hand 13C NMR spectra are show...
This compound has the molecular formula CsHino. It is IR 'Hand 13C NMR spectra are show below 1. Write the functional group for every number in the IR, 2. calculate the integration for every peak in the 'H NMR 3. Write the kind of proton for every number in the proton NMR 4. Write the kind of carbon for every number in the 13C NMR. 5. Determine the structure, and show how it consistent with the observed absorptions. 100) 993...
91T Q9) Identify the unknown aromatic compound using the following spectra. Use the 'H NMR splitting in the aromatic region to determine the substitution pattern on the aromatic ring. Label and assign all relevant peaks on the IR and NMR spectra. For the Mass Spectrum, label the molecular ion peak, base peak, and any halogen isotopes, along with any mass losses (change in m/z between peaks) that are helpful in determining your structure. ortho meta arbitrary units 140 160 180...
thank you in advance
Label the significant peaks in the IR and NMR spectra. When analyzing the signals in the 'H NMR, be sure to include all appropriate information. For example: 3H, singlet, 0 neighbors, and c (the letter referring to the corresponding unique type of hydrogens that were labeled in the structure). It is recommended to provide more analysis for each signal than what is described above, when necessary, such as labeling any coupling constants if any are provided....
A compound with molecular formula C7H160 displays the following IR and 'H-NMR spectra. The 13C NMR data suggest that there is some symmetry within the molecule. a) Calculate the degrees of unsaturation (DU) for the compound in the space provided below. DU = b) Identify and label the two indicated peaks in the IR spectrum in the boxes provided. Identify and label ALL peaks in the 'H NMR spectrum below. The numbers given on the 'H NMR are integration values...
Label the significant peaks in the IR and NMR spectra. When analyzing the signals in the 'HNMR, be sure to include all appropriate information. For example: 3H, singlet, 0 neighbors, and c (the letter referring to the corresponding unique type of hydrogens that were labeled in the structure). It is recommended to provide more analysis for each signal than what is described above, when necessary, such as labeling any coupling constants if any are provided For NMR label each peak...
A compound with molecular formula C7H160 displays the following IR and 'H-NMR spectra. The 13C NMR data suggest that there is some symmetry within the molecule. a) Calculate the degrees of unsaturation (DU) for the compound in the space provided below. DU = b) Identify and label the two indicated peaks in the IR spectrum in the boxes provided. Identify and label ALL peaks in the 'H NMR spectrum below. The numbers given on the 'H NMR are integration values...
A compound with molecular formula C H160 displays the following IR and 'H-NMR spectra. The 13C NMR data suggest that there is some symmetry within the molecule. a) Calculate the degrees of unsaturation (DU) for the compound in the space provided below. DU = b) Identify and label the two indicated peaks in the IR spectrum in the boxes provided. Identify and label ALL peaks in the 'H NMR spectrum below. The numbers given on the 'H NMR are integration...
Compound 3: Use the information provided below and the IR and NMR spectra on the next page to answer the following questions. a) An MS was taken of compound 3 and the table is given below. Determine the molecular formula of 3 from the MS given below. . relative abundance m/z 152 100 153 9.7 154 4.5 b) Calculate the Index of Hydrogen Deficiency/Degree of Unsaturation for the molecule. c) Using the IR spectrum and the 'H- and 13C-NMR spectra...
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) having the molecular formula C4H,02. Part 1 out of 2 Compound A: 1H NMR of A 2 H 2 H 1H 7 6 2 0 ppm 100 IR [A] 50 0 4000 3500 3000 2500 2000 1500 1000 500
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) having the molecular...
A compound with molecular formula C7H160 displays the following IR and 'H-NMR spectra. The 13C NMR data suggest that there is some symmetry within the molecule. a) Calculate the degrees of unsaturation (DU) for the compound in the space provided below. DU = b) Identify and label the two indicated peaks in the IR spectrum in the boxes provided. Identify and label ALL peaks in the 'H NMR spectrum below. The numbers given on the 'H NMR are integration values...
This compound has the molecular formula CsHino. It is IR 'Hand 13C NMR spectra are show below 1. Write the functional group for every number in the IR, 2. calculate the integration for every peak in the 'H NMR 3. Write the kind of proton for every number in the proton NMR 4. Write the kind of carbon for every number in the 13C NMR. 5. Determine the structure, and show how it consistent with the observed absorptions. 100) 993...
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