Homework Answers
Answer:
From the IR spectra we can see a peak at around 1715 cm-1, this peak corresponds to a carbonyl group.
Now moving on to the proton NMR, it is clear that the compound contains 3 kinds of protons because 3 signals are there. One type contains 4 protons, one type contains 4 protons and the another one contains 2 protons.
From 13C NMR, there's a peak at around 210 ppm, this peak corresponds to the carbonyl carbon. The other peaks corresponds to methylene carbon.
From the mass spectra, the molar weight is 98. Its base peak is at 55. The most likely molecular formula for a compound having a carbonyl group and having molar mass of 98 is C6H10O.
Summing up all the informations from the various spectra given, the most likely compound is cyclohexan
The different types of protons and the fragmentation pattern for the base peak is shown below-
Ha, Hb, Hc are the 3 types of protons. Ha has the highest chemical shift, followed by Hb and Hc.
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IR mmm Directions: Deduce the structure of This compound using the spectroscopic information Assign all significant...
Compound Z, CaHie0. Deduce its structure. IR: significant peaks at 2962 and 1718 (intense) cm. Mass...
Compound Z, CaHie0. Deduce its structure. IR: significant peaks at 2962 and 1718 (intense) cm. Mass spectrum: a few of the significant peaks include 128, 103, 57 m/z H-NMR: S,3H's aH's t,2t's PPM 13C-NMR 220 200 180 160 140 120 PPM 100 80 60 40 20
Need help with spectroscopy Please label all peaks, in the IR (except fingerprint region) and NMR...
Need help with spectroscopy
Please label all peaks, in the IR (except fingerprint region)
and NMR spectra
Draw the structure/ compound that would produce these
spectra
1. A compound with molecular formulacsH7NO) displays the following IR, and 13C NMR spectra. Propose a structure for this compound. Assign all the peaks you can SDBS: National Institute of Advanced Industrial Science and Technology 25 2. lo 112 200 18O 160 140 120 100 80 60 40 20 o CDS-00-254
A compound of unknown structure gave the following spectroscopic data: Mass spectrum: M+ = 88.1 IR:...
A compound of unknown structure gave the following
spectroscopic data:
Mass spectrum: M+ = 88.1
IR: 3600cm-1
1H NMR: 1.4 (2H, quartet, J=7Hz); 1.2 (6H, singlet); 1.0 (1H,
singlet); 0.9 (3H, triplet, J=7Hz)
13C NMR: 74, 35, 27, 25
a. assuming that the compound contains C and H but may or may not
contain O, give three possible molecular formulas.
b. how many protons (H) does the compound contain?
c. what functional group(s) does the compound contain?
d. how many...
Deduce the following structure of the compound given their IR, H1 NMR, 13C NMR spectra, and...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 6 1756 IR Spectrum uid Sm) 15820 4000 3000 2000 1600 1200 800 V (cm) 100 55 Mass Spectrum 71 80 70 60 No significant UV M158 (1%) absorption above 220 nm C&H140s 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (50.0 MHz,...
6. Characterization and Synthesis (20 points total) Use the information provided below and the IR and...
6. Characterization and Synthesis (20 points total) 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 molecule A and the table is given below. Determine the molecular formula of A from the MS given below m/z 119 118 Relative abundance (Intensity) 9.9 100 b) Calculate the Index of Hydrogen Deficiency (IHD) for the molecule in A, above. c) Using the information in a...
Deduce the following structure of the compound given their IR, H1 NMR, 13C NMR spectra, and...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 4 Da- U6)+20 IR Spectrum Oquid fim) 1760 800 1200 2000 1600 3000 4000 v (cm) Mass Spectrum 100 43 No significant UV absorption above 220 nm M146 (1% ) 87 20 CH1004 280 40 80 120 m/e 160 200 240 13C NMR Spectrum (1000 MHz,...
IR Spectra help, question up top Use IR. proton NMR and MS data to deduce the...
IR Spectra help, question up top
Use IR. proton NMR and MS data to deduce the correct structure Draw the structure and dide it. Indicate on the IR, NMR and MS spectra the information you got from each to deduce the structure. Problem 20 IR Spectrum 4000 3000 2000 1800 12000 00 8 Mass Spectrum 8 8 No significant UV absorption above 220 nm 8 8 CgH NO 240 280 40 80 120 180 200 13C NMR Spectrum (1000 MHE....
Assign all peaks (or groups of peaks) in the following spectra. 13. Propose a structure for...
Assign all peaks (or groups of peaks) in the following
spectra.
13. Propose a structure for the compound C.H.NO, with the following 'H NMR. 13C NMR and IR spectral data. 6H зн 200 150 160 160 120 0 0 0 20 0 100 am
The following spectroscopic data below corresponds to an unknown carbonyl compound with the molecular formula CH120....
The following spectroscopic data below corresponds to an unknown carbonyl compound with the molecular formula CH120. Deduce and draw the structure of the compound that corresponds to the data. The letter "m" refers to an uninterpretable multiplet in the spectra. TH NMR: 8 1.60 (m, 4H), 2.15 (s, 3H), 2.19 (m, 4H), and 6.78 (t, 1H) ppm. 13C NMR: 8 21.8, 22.2, 23.2, 25.0, 26.2, 139.8, 140.7, 198.6 ppm.
Compound 2: Use the information provided below and the IR and NMR spectra on the next...
Compound 2: 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 2 and the table is given below. Determine the molecular formula of 2 from the MS given below relative abundance m/z 132 100 133 9.8 b) Calculate the Index of Hydrogen Deficiency/Degree of Unsaturation for the molecule. c) Using the IR spectrum and the 1H- and 13C-NMR spectra given below, determine...
Compound Z, CaHie0. Deduce its structure. IR: significant peaks at 2962 and 1718 (intense) cm. Mass spectrum: a few of the significant peaks include 128, 103, 57 m/z H-NMR: S,3H's aH's t,2t's PPM 13C-NMR 220 200 180 160 140 120 PPM 100 80 60 40 20
Need help with spectroscopy
Please label all peaks, in the IR (except fingerprint region)
and NMR spectra
Draw the structure/ compound that would produce these
spectra
1. A compound with molecular formulacsH7NO) displays the following IR, and 13C NMR spectra. Propose a structure for this compound. Assign all the peaks you can SDBS: National Institute of Advanced Industrial Science and Technology 25 2. lo 112 200 18O 160 140 120 100 80 60 40 20 o CDS-00-254
A compound of unknown structure gave the following
spectroscopic data:
Mass spectrum: M+ = 88.1
IR: 3600cm-1
1H NMR: 1.4 (2H, quartet, J=7Hz); 1.2 (6H, singlet); 1.0 (1H,
singlet); 0.9 (3H, triplet, J=7Hz)
13C NMR: 74, 35, 27, 25
a. assuming that the compound contains C and H but may or may not
contain O, give three possible molecular formulas.
b. how many protons (H) does the compound contain?
c. what functional group(s) does the compound contain?
d. how many...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 6 1756 IR Spectrum uid Sm) 15820 4000 3000 2000 1600 1200 800 V (cm) 100 55 Mass Spectrum 71 80 70 60 No significant UV M158 (1%) absorption above 220 nm C&H140s 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (50.0 MHz,...
6. Characterization and Synthesis (20 points total) 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 molecule A and the table is given below. Determine the molecular formula of A from the MS given below m/z 119 118 Relative abundance (Intensity) 9.9 100 b) Calculate the Index of Hydrogen Deficiency (IHD) for the molecule in A, above. c) Using the information in a...
Deduce the following structure of the compound given their IR, H1
NMR, 13C NMR spectra, and assign IR functional group absorptions
and assign the structure's protons and carbons to their respective
spectral resonances.
Compound 4 Da- U6)+20 IR Spectrum Oquid fim) 1760 800 1200 2000 1600 3000 4000 v (cm) Mass Spectrum 100 43 No significant UV absorption above 220 nm M146 (1% ) 87 20 CH1004 280 40 80 120 m/e 160 200 240 13C NMR Spectrum (1000 MHz,...
IR Spectra help, question up top
Use IR. proton NMR and MS data to deduce the correct structure Draw the structure and dide it. Indicate on the IR, NMR and MS spectra the information you got from each to deduce the structure. Problem 20 IR Spectrum 4000 3000 2000 1800 12000 00 8 Mass Spectrum 8 8 No significant UV absorption above 220 nm 8 8 CgH NO 240 280 40 80 120 180 200 13C NMR Spectrum (1000 MHE....
Assign all peaks (or groups of peaks) in the following
spectra.
13. Propose a structure for the compound C.H.NO, with the following 'H NMR. 13C NMR and IR spectral data. 6H зн 200 150 160 160 120 0 0 0 20 0 100 am
The following spectroscopic data below corresponds to an unknown carbonyl compound with the molecular formula CH120. Deduce and draw the structure of the compound that corresponds to the data. The letter "m" refers to an uninterpretable multiplet in the spectra. TH NMR: 8 1.60 (m, 4H), 2.15 (s, 3H), 2.19 (m, 4H), and 6.78 (t, 1H) ppm. 13C NMR: 8 21.8, 22.2, 23.2, 25.0, 26.2, 139.8, 140.7, 198.6 ppm.
Compound 2: 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 2 and the table is given below. Determine the molecular formula of 2 from the MS given below relative abundance m/z 132 100 133 9.8 b) Calculate the Index of Hydrogen Deficiency/Degree of Unsaturation for the molecule. c) Using the IR spectrum and the 1H- and 13C-NMR spectra given below, determine...
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