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4.[6 marks) Two compounds (C,H,.0) show IR spectra below. For each a) Calculate its DBE b)...
4. Which two of the following compounds are consistent with the two IR spectra shown (one...
4. Which two of the following compounds are consistent with the two IR spectra shown (one cach spectrum)? Draw the structure of the assigned compound by the respective spectrum. Assign label cach peak on each spectrum (outside fingerprint region) that corresponds to a bond in the structure
IV. Identify the compound C&H1o0 on the basis of its IR and NMR spectra shown below....
IV. Identify the compound C&H1o0 on the basis of its IR and NMR spectra shown below. The broad triplet near δ 2.5 ppm disappears when D20 is added. Please draw the Lewis structure ofthe compound, assign all H NMR signals and the key IR stretching bands of functional groups. (16)
Need help finding the structure and distinguishing peaks. 3. The IR and 'H NMR spectra of...
Need help finding the structure and distinguishing
peaks.
3. The IR and 'H NMR spectra of CH4O2 are shown below. Propose a structure for this compound that is consistent with the spectral data. Draw your final structure in the box provided. 2H Final Structure
6. The 'H-NMR spectra shown below correspond to a compound of general forma C D 2H...
6. The 'H-NMR spectra shown below correspond to a compound of general forma C D 2H 1H 2H 2H2H TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT 10.0 9.5 9.5 8.5 8.6 7.5 7.0 PPM a) Propose a plausible structure for this compound (3 points) b) Assign each signal from the 1H-NMR spectra to the corresponding hydrogen atoms in compound. Explain for each signal the observed splitting pattern and the chemical sh
IR spectroscopy 1. Match the following six compounds to the IR spectra shown below. Draw the...
IR spectroscopy 1. Match the following six compounds to the IR spectra shown below. Draw the structure in the box. On the spectra, mark all important peaks with arrows or circles, and label them with corresponding bonds. NH2 orte de Structure: IR Spectrum lould film) 1723 V 4000 2000 3000 1200 1600 V (cm ) Structure: IR Spectrum fiquld fam) 4000 2000 V (cm 16001200800 ) Exp - 119- Exp. 100 Structure: 3600-2500 IR Spectrum liguld fm) U 1715 4000...
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...
29. The IR and 'H NMR spectra of Unknown B of molecular formula C,H,20, are given...
29. The IR and 'H NMR spectra of Unknown B of molecular formula C,H,20, are given on the next page. [10 points] a. How many degrees of unsaturation are present in Unknown B? b. What functional groups are suggested by the IR spectral data? c. How many protons correspond to each signal of the 'H NMR? d. What C-H bonding (or types of protons) are suggested by the 'H NMR data? e. Suggest a structure consistent with parts 29a-d above....
Based on the IR and NMR spectra, determine the structure of each of the following compounds...
Based on the IR and NMR spectra, determine the structure of each of the following compounds A) The compound with the formula CHN Based on the IR and NMR spectra, determine the structure of each of the following compounds A) The compound with the formula CHN LLLLLLL B) The compound with the formula C,H03 11 10 We were unable to transcribe this imageD) The compound with the formula C, H, NO4 Te 200 180 160 E) The compound with the...
5. An unknown compound with molecular CHz NO, hasthe 'H NIMR and IR spectra below. Propose...
5. An unknown compound with molecular CHz NO, hasthe 'H NIMR and IR spectra below. Propose a structure for the compound and assign the peaks on each spectrum 10 9 8765 4321 0 ppm
spectral problem its all one problem 1) identify the compounds for each group of spectra (mass,...
spectral problem its all one problem
1) identify the compounds for each group of spectra (mass,
proton, carbon and IR)
2) assign the proton and carbon and IR spectra. identify at
least two possible fragmentation on the mass spectrum
SH SH 1H 1 1Η ddd 200 0 100 120 160 140 120 100 BD5040 ZO %C = 79.4: %H = 8.8: %0 - 11.8 100 MS-NW-3395 40- 20 Orth 25 TTTTTTTTTT 125 50 75 100
4. Which two of the following compounds are consistent with the two IR spectra shown (one cach spectrum)? Draw the structure of the assigned compound by the respective spectrum. Assign label cach peak on each spectrum (outside fingerprint region) that corresponds to a bond in the structure
IV. Identify the compound C&H1o0 on the basis of its IR and NMR spectra shown below. The broad triplet near δ 2.5 ppm disappears when D20 is added. Please draw the Lewis structure ofthe compound, assign all H NMR signals and the key IR stretching bands of functional groups. (16)
Need help finding the structure and distinguishing
peaks.
3. The IR and 'H NMR spectra of CH4O2 are shown below. Propose a structure for this compound that is consistent with the spectral data. Draw your final structure in the box provided. 2H Final Structure
6. The 'H-NMR spectra shown below correspond to a compound of general forma C D 2H 1H 2H 2H2H TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT 10.0 9.5 9.5 8.5 8.6 7.5 7.0 PPM a) Propose a plausible structure for this compound (3 points) b) Assign each signal from the 1H-NMR spectra to the corresponding hydrogen atoms in compound. Explain for each signal the observed splitting pattern and the chemical sh
IR spectroscopy 1. Match the following six compounds to the IR spectra shown below. Draw the structure in the box. On the spectra, mark all important peaks with arrows or circles, and label them with corresponding bonds. NH2 orte de Structure: IR Spectrum lould film) 1723 V 4000 2000 3000 1200 1600 V (cm ) Structure: IR Spectrum fiquld fam) 4000 2000 V (cm 16001200800 ) Exp - 119- Exp. 100 Structure: 3600-2500 IR Spectrum liguld fm) U 1715 4000...
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...
29. The IR and 'H NMR spectra of Unknown B of molecular formula C,H,20, are given on the next page. [10 points] a. How many degrees of unsaturation are present in Unknown B? b. What functional groups are suggested by the IR spectral data? c. How many protons correspond to each signal of the 'H NMR? d. What C-H bonding (or types of protons) are suggested by the 'H NMR data? e. Suggest a structure consistent with parts 29a-d above....
Based on the IR and NMR spectra, determine the structure of each of the following compounds A) The compound with the formula CHN Based on the IR and NMR spectra, determine the structure of each of the following compounds A) The compound with the formula CHN LLLLLLL B) The compound with the formula C,H03 11 10 We were unable to transcribe this imageD) The compound with the formula C, H, NO4 Te 200 180 160 E) The compound with the...
5. An unknown compound with molecular CHz NO, hasthe 'H NIMR and IR spectra below. Propose a structure for the compound and assign the peaks on each spectrum 10 9 8765 4321 0 ppm
spectral problem its all one problem
1) identify the compounds for each group of spectra (mass,
proton, carbon and IR)
2) assign the proton and carbon and IR spectra. identify at
least two possible fragmentation on the mass spectrum
SH SH 1H 1 1Η ddd 200 0 100 120 160 140 120 100 BD5040 ZO %C = 79.4: %H = 8.8: %0 - 11.8 100 MS-NW-3395 40- 20 Orth 25 TTTTTTTTTT 125 50 75 100
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