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7. Fill in the table below with the information on each unique 'H-NMR signal. You may...
9. Briefly explain how the 13C-NMR data was used to determine (or confirm) your proposed structure....
9. Briefly explain how the 13C-NMR data was used to determine (or confirm) your proposed structure. 10. 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. Mass Spec 70eV+El Problem 44 -...
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....
Deduce the structure based on the information below: Here's the zoom-in of the H NMR: Here's...
Deduce the structure based on the information below:
Here's the zoom-in of the H NMR:
Here's the zoom-in of the coupling pattern:
C NMR:
Concepts: organic spectroscopy, organic chemistry
We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this image220 210 200 190 .180170160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Рpm
Please help me find the unknown structure, Thanks. Unknown 261H-NMR Spectra 3.3 ppm 4-0 4.5 4.0...
Please help me find the unknown structure, Thanks.
Unknown 261H-NMR Spectra 3.3 ppm 4-0 4.5 4.0 3.5 3.4 2.5 2.0 .0 .s a. 3.00 Unknown 26 - 13C-NMR Spectrum 32 34 28 24 20 14 ppm 60 40 200 180 160 140 120 100 20 Unknown 26 IR and Mass Spectra 100 80 40 20 50 75 100 125 m/z 2500 WAVENUMBER [cm-1] 1500 3500 2000 1000 4000 3000 500 TRANSMITTANCE %] Raufive hitensity 06 7 Unknown 26 1H-NMR Spectra...
The basic NMR is all we were given this is the correct one We were unable to transcribe this image4. Using th...
The
basic NMR is all we were given
this is the correct one
We were unable to transcribe this image4. Using the 'H NMR below, predict the chemical structure of this CHN compound. Draw the structure on ChemDraw and predict your proposed structure's 'H NMR. Print the full ChemNMR 'H Estimation page that confirms your proposed structure and include it in your lab report. ChemDraw Tutorial Question 4 Typo Correction PPM
-NMR and H-NMR – label both unambiguously and clearly illustrate that you understand proton and carbon...
-NMR
and H-NMR – label both unambiguously and clearly illustrate that
you understand proton and carbon environments (i.e. Draw out the
skeletal structure of the compound, label the H’s a, b, c’s and the
C’s 1, 2, 3’s. Then label all signals on the NMR with those
corresponding letters/numbers accordingly.).
We were unable to transcribe this imageWe were unable to transcribe this imageC7H140 CDCl3 240 200 QE-300 180 129 100
molecular formula is not given No forma For the IR spectrum, each major signal should be...
molecular formula is not given
No forma For the IR spectrum, each major signal should be identified by wavenumber (stretching. frequency) and assigned to the corresponding bond. A conclusion about functional groups should also be drawn from the spectrum. In the C-NMR spectrum, the chemical shift of each signal should be noted and a structural assignment should be made. In 'H-NMR spectrum, the chemical shift, integration, and splitting pattern for each signal should be noted and a structural assignment should...
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...
what do these tables tell you about the compound, can you also give the structure Table...
what do these tables tell you about the compound, can
you also give the structure
Table 1. IR Data Functional Group IR band (observed) IR band (reference) Ketone 1705 1690-1720 sp-H 2950 2900-3000 We were unable to transcribe this imageTable 3. C-NMR Data Carbon Chemical Shift Structure/Fragment 212 -C=0 48 C - C = 0 28 at Le CHE-C = 0 . CH, -C-C-C - CH CH, -C-C-C- CH 10 Structure Table 1. IR data Functional group Aliphatic ketone sp3-H...
Preparation of Hexyl Acetate mass 144g/mol Mass Spectrometry Data Table Intensity 144amu m/t Cationic Structure *H...
Preparation of Hexyl Acetate
mass 144g/mol
Mass Spectrometry Data Table Intensity 144amu m/t Cationic Structure *H NMR Data Table Structure (with labels) Label (1.e. H., H., etc) Chemical Shift (ppm) Integration (.e. 1H,2H, 3H, etc) Splitting les, d, t,a, m(5). etc) 13C NMR Data Table Structure (with labels) Label (Le.CC. etc) Chemical Shift (ppm) Type of Carbon (ie. C , CH, CH), CH) 124 We were unable to transcribe this imageDEPT Spectrum: Hexyl Acetate - 170.9186 -644353 - 13.7970 0...
9. Briefly explain how the 13C-NMR data was used to determine (or confirm) your proposed structure. 10. 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. Mass Spec 70eV+El Problem 44 -...
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....
Deduce the structure based on the information below:
Here's the zoom-in of the H NMR:
Here's the zoom-in of the coupling pattern:
C NMR:
Concepts: organic spectroscopy, organic chemistry
We were unable to transcribe this imageWe were unable to transcribe this imageWe were unable to transcribe this image220 210 200 190 .180170160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Рpm
Please help me find the unknown structure, Thanks.
Unknown 261H-NMR Spectra 3.3 ppm 4-0 4.5 4.0 3.5 3.4 2.5 2.0 .0 .s a. 3.00 Unknown 26 - 13C-NMR Spectrum 32 34 28 24 20 14 ppm 60 40 200 180 160 140 120 100 20 Unknown 26 IR and Mass Spectra 100 80 40 20 50 75 100 125 m/z 2500 WAVENUMBER [cm-1] 1500 3500 2000 1000 4000 3000 500 TRANSMITTANCE %] Raufive hitensity 06 7 Unknown 26 1H-NMR Spectra...
The
basic NMR is all we were given
this is the correct one
We were unable to transcribe this image4. Using the 'H NMR below, predict the chemical structure of this CHN compound. Draw the structure on ChemDraw and predict your proposed structure's 'H NMR. Print the full ChemNMR 'H Estimation page that confirms your proposed structure and include it in your lab report. ChemDraw Tutorial Question 4 Typo Correction PPM
-NMR
and H-NMR – label both unambiguously and clearly illustrate that
you understand proton and carbon environments (i.e. Draw out the
skeletal structure of the compound, label the H’s a, b, c’s and the
C’s 1, 2, 3’s. Then label all signals on the NMR with those
corresponding letters/numbers accordingly.).
We were unable to transcribe this imageWe were unable to transcribe this imageC7H140 CDCl3 240 200 QE-300 180 129 100
molecular formula is not given
No forma For the IR spectrum, each major signal should be identified by wavenumber (stretching. frequency) and assigned to the corresponding bond. A conclusion about functional groups should also be drawn from the spectrum. In the C-NMR spectrum, the chemical shift of each signal should be noted and a structural assignment should be made. In 'H-NMR spectrum, the chemical shift, integration, and splitting pattern for each signal should be noted and a structural assignment should...
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...
what do these tables tell you about the compound, can
you also give the structure
Table 1. IR Data Functional Group IR band (observed) IR band (reference) Ketone 1705 1690-1720 sp-H 2950 2900-3000 We were unable to transcribe this imageTable 3. C-NMR Data Carbon Chemical Shift Structure/Fragment 212 -C=0 48 C - C = 0 28 at Le CHE-C = 0 . CH, -C-C-C - CH CH, -C-C-C- CH 10 Structure Table 1. IR data Functional group Aliphatic ketone sp3-H...
Preparation of Hexyl Acetate
mass 144g/mol
Mass Spectrometry Data Table Intensity 144amu m/t Cationic Structure *H NMR Data Table Structure (with labels) Label (1.e. H., H., etc) Chemical Shift (ppm) Integration (.e. 1H,2H, 3H, etc) Splitting les, d, t,a, m(5). etc) 13C NMR Data Table Structure (with labels) Label (Le.CC. etc) Chemical Shift (ppm) Type of Carbon (ie. C , CH, CH), CH) 124 We were unable to transcribe this imageDEPT Spectrum: Hexyl Acetate - 170.9186 -644353 - 13.7970 0...
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