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Please finish answering #3, 5 & 6
1. Show all your work for converting the elemental...
6. Provide at least one fragment (not the parent ion) that was useful in determining (or confirming) the structure...
6. Provide at least one fragment (not the parent ion) that was useful in determining (or confirming) the structure of the unknown and briefly explain how it was useful. 7. Give several pieces of data you gathered from the IR spectrum that aided in determining (or confirming) the structure of your unknown. For example, you might mention the presence (or absence) of certain definitive peaks (include wavenumbers). Do NOT use anything from the fingerprint region. Chapter 5: INTEGRATED SPECTROSCOPY PROBLEMS...
8. Fill in the table below with the information on each unique 1H-NMR signal. You may treat all aromatic protons a...
8. Fill in the table below with the information on each unique 1H-NMR signal. You may treat all aromatic protons as a single signal if that helps. Peak # Chemical Shift (8) # of H Multiplicity Proposed Fragment Structure 9. Based on your molecular formula, 'H-NMR integration and 13C-NMR, is there any symmetry in your molecule? Explain. Chapter 5: INTEGRATED SPECTROSCOPY PROBLEMS 139 ompound 81 is a liquid (boiling point 85' C) that is commonly used as an aprotic solvent....
10. Briefly explain how the 13C-NMR data was used to determine (or confirm your proposed structure....
10. Briefly explain how the 13C-NMR data was used to determine (or confirm your proposed structure. 11. In both of the boxes below, draw the bond-line structure with appropriate bond angles) of your unknown. On the structure on the left, indicate with a label (peak #from table above) and arrow the source of each signal. On the structure of the right, indicate with a label (13C-NMR ppm) and arrow the source of each signal. Chapter 5: INTEGRATED SPECTROSCOPY PROBLEMS 139...
5. Identify the base peak in your mass spectrum. 6. Are there other significant isotope patterns...
5. Identify the base peak in your mass spectrum. 6. Are there other significant isotope patterns in your mass spectrum? If so, what do they indicate? 7. Provide at least one fragment (not the parent ion) that was useful in determining (or confirming) the structure of the unknown and briefly explain how it was useful. Compound 14 is a liquid (b.p. 85") which finds its greatest application as an aprotic solvent UV-transparent; IR-liquid fim. MASS SPECTRAL DATA 99 100 Mass...
I need #2 answered Spectroscopy Problem Set15pts CHEM220B Spring 2019 1. Unknown number 44 SU 2....
I need #2 answered
Spectroscopy Problem Set15pts CHEM220B Spring 2019 1. Unknown number 44 SU 2. Mass Spectrum (3pts) a. Molecular lon m/z value l08 Attach your unknown spectra to this sheet. and structure of the Molecular lon b. Base Peak m/z value and structure of that ion c. One other significant peak m/z value and structure of that ion 3. C13 NMR Spectrum (3pts) Draw Structure of Compound on the C13 NMR spectrum and identify each signal with the...
Unknown H415 100 50 1000 1S00 2000 3000 BRVENUMBERI 4000 Unknown H415 ЗН 1 H-N 2H,...
Unknown H415 100 50 1000 1S00 2000 3000 BRVENUMBERI 4000 Unknown H415 ЗН 1 H-N 2H, q 1H, d 5H, m 1H, d 0 1 2 3 6 7 8 10 11 ppm HSP-00-049 Unknown H415 q 140 120 100 200 180 160 ppm CDS-00-726 20 -40 60 80 Relative Intensity 09 Unknown H415 100 MS-NJ-0442 80 20 thmpt 25 50 75 100 125 150 175 m/z Date: Name: Section/Group: Instructor: Report Sheet: Laboratory 14 MS,IR, 13C NMR, and 'H...
Lab 6 Mass Spectrometry Worksheet Please show your work for the following problems in your laboratory...
Lab 6 Mass Spectrometry Worksheet Please show your work for the following problems in your laboratory notebook. Your notebook carbons will be collected at the beginning of the next lab period. 1. For each of the following molecular formulas, calculate the index of hydrogen deficiency (IHD), and draw at least two possible structures: a. CaH4 22+2--6+04-2 b. CaHs c. CoHsNO2 26)-54t 4 d. CHioBr2 2 215)+2--0+o 2. Write the molecular formulas for three hydrocarbons with the following molecular ion (M)...
Spectroscopic Analysis Unknown 1: Molecule Number a) Determine the empirical formula from the microanalysis data, showing...
Spectroscopic Analysis Unknown 1: Molecule Number a) Determine the empirical formula from the microanalysis data, showing your working: Empirical Formula b) Does the mass spectrum imply the molecular formula is the same as the empirical formula? Why/Why not? Molecular Formula c) Use the 'double bond equivalents' formula to determine the degree on unsaturation for this molecule: d) What structural information can you garner from the IR spectrum? e) What structural information can you garner from the 'H NMR spectrum? Specify...
Spectroscopic Analysis Unknown 1: Molecule Number a) Determine the empirical formula from the microanalysis data, showing...
Spectroscopic Analysis Unknown 1: Molecule Number a) Determine the empirical formula from the microanalysis data, showing your working: Empirical Formula b) Does the mass spectrum imply the molecular formula is the same as the empirical formula? Why/Why not? Molecular Formula c) Use the 'double bond equivalents' formula to determine the degree on unsaturation for this molecule: d) What structural information can you garner from the IR spectrum? e) What structural information can you garner from the 'H NMR spectrum? Specify...
Spectroscopic Analysis Unknown 1: Molecule Number a) Determine the empirical formula from the microanalysis data, showing...
Spectroscopic Analysis Unknown 1: Molecule Number a) Determine the empirical formula from the microanalysis data, showing your working: Empirical Formula b) Does the mass spectrum imply the molecular formula is the same as the empirical formula? Why/Why not? Molecular Formula c) Use the 'double bond equivalents' formula to determine the degree on unsaturation for this molecule: d) What structural information can you garner from the IR spectrum? e) What structural information can you garner from the 'H NMR spectrum? Specify...
6. Provide at least one fragment (not the parent ion) that was useful in determining (or confirming) the structure of the unknown and briefly explain how it was useful. 7. Give several pieces of data you gathered from the IR spectrum that aided in determining (or confirming) the structure of your unknown. For example, you might mention the presence (or absence) of certain definitive peaks (include wavenumbers). Do NOT use anything from the fingerprint region. Chapter 5: INTEGRATED SPECTROSCOPY PROBLEMS...
8. Fill in the table below with the information on each unique 1H-NMR signal. You may treat all aromatic protons as a single signal if that helps. Peak # Chemical Shift (8) # of H Multiplicity Proposed Fragment Structure 9. Based on your molecular formula, 'H-NMR integration and 13C-NMR, is there any symmetry in your molecule? Explain. Chapter 5: INTEGRATED SPECTROSCOPY PROBLEMS 139 ompound 81 is a liquid (boiling point 85' C) that is commonly used as an aprotic solvent....
10. Briefly explain how the 13C-NMR data was used to determine (or confirm your proposed structure. 11. In both of the boxes below, draw the bond-line structure with appropriate bond angles) of your unknown. On the structure on the left, indicate with a label (peak #from table above) and arrow the source of each signal. On the structure of the right, indicate with a label (13C-NMR ppm) and arrow the source of each signal. Chapter 5: INTEGRATED SPECTROSCOPY PROBLEMS 139...
5. Identify the base peak in your mass spectrum. 6. Are there other significant isotope patterns in your mass spectrum? If so, what do they indicate? 7. Provide at least one fragment (not the parent ion) that was useful in determining (or confirming) the structure of the unknown and briefly explain how it was useful. Compound 14 is a liquid (b.p. 85") which finds its greatest application as an aprotic solvent UV-transparent; IR-liquid fim. MASS SPECTRAL DATA 99 100 Mass...
I need #2 answered
Spectroscopy Problem Set15pts CHEM220B Spring 2019 1. Unknown number 44 SU 2. Mass Spectrum (3pts) a. Molecular lon m/z value l08 Attach your unknown spectra to this sheet. and structure of the Molecular lon b. Base Peak m/z value and structure of that ion c. One other significant peak m/z value and structure of that ion 3. C13 NMR Spectrum (3pts) Draw Structure of Compound on the C13 NMR spectrum and identify each signal with the...
Unknown H415 100 50 1000 1S00 2000 3000 BRVENUMBERI 4000 Unknown H415 ЗН 1 H-N 2H, q 1H, d 5H, m 1H, d 0 1 2 3 6 7 8 10 11 ppm HSP-00-049 Unknown H415 q 140 120 100 200 180 160 ppm CDS-00-726 20 -40 60 80 Relative Intensity 09 Unknown H415 100 MS-NJ-0442 80 20 thmpt 25 50 75 100 125 150 175 m/z Date: Name: Section/Group: Instructor: Report Sheet: Laboratory 14 MS,IR, 13C NMR, and 'H...
Lab 6 Mass Spectrometry Worksheet Please show your work for the following problems in your laboratory notebook. Your notebook carbons will be collected at the beginning of the next lab period. 1. For each of the following molecular formulas, calculate the index of hydrogen deficiency (IHD), and draw at least two possible structures: a. CaH4 22+2--6+04-2 b. CaHs c. CoHsNO2 26)-54t 4 d. CHioBr2 2 215)+2--0+o 2. Write the molecular formulas for three hydrocarbons with the following molecular ion (M)...
Spectroscopic Analysis Unknown 1: Molecule Number a) Determine the empirical formula from the microanalysis data, showing your working: Empirical Formula b) Does the mass spectrum imply the molecular formula is the same as the empirical formula? Why/Why not? Molecular Formula c) Use the 'double bond equivalents' formula to determine the degree on unsaturation for this molecule: d) What structural information can you garner from the IR spectrum? e) What structural information can you garner from the 'H NMR spectrum? Specify...
Spectroscopic Analysis Unknown 1: Molecule Number a) Determine the empirical formula from the microanalysis data, showing your working: Empirical Formula b) Does the mass spectrum imply the molecular formula is the same as the empirical formula? Why/Why not? Molecular Formula c) Use the 'double bond equivalents' formula to determine the degree on unsaturation for this molecule: d) What structural information can you garner from the IR spectrum? e) What structural information can you garner from the 'H NMR spectrum? Specify...
Spectroscopic Analysis Unknown 1: Molecule Number a) Determine the empirical formula from the microanalysis data, showing your working: Empirical Formula b) Does the mass spectrum imply the molecular formula is the same as the empirical formula? Why/Why not? Molecular Formula c) Use the 'double bond equivalents' formula to determine the degree on unsaturation for this molecule: d) What structural information can you garner from the IR spectrum? e) What structural information can you garner from the 'H NMR spectrum? Specify...
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