5. (4 pts) Determiné the molecular formula and possible structures for ea the given spectra. More than one structure may be possible. Show yourr 100 500 4 UD 100 MS-NI-2191 80 5 60- 40 20- 0 10 15 20 25 30 3540 45 50 55 60
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2. (6 pts) Determine the structure of the following Show your reasoning for each type of spectra ...
Combined IR Spectroscopy and Mass Spectrometry Problems Determine the molecular formula and possible structures for each...
Combined IR Spectroscopy and Mass Spectrometry Problems Determine the molecular formula and possible structures for each unknown based on the given spectra. Use the IR Correlation Table. Note: DOU - Cs+1-0.5(#Hs-#Ns+Whalogens). SHOW YOUR WORK! 100 - 2191 Relative Intensity 10 15 20 25 30 40 35 m/z 45 50 55 60
BONUS (10 pts) Determine the compound structure based on the spectra below. Annotate spectra to receive...
BONUS (10 pts) Determine the compound structure based on the spectra below. Annotate spectra to receive full credit 3457 IR Spectrum (CHCI solution) 4000 3000 2000 V (cm 1600 ) 1200 800 Mass Spectrum TY of base peak UV Spectrum 2 max 263 nm (1090€ 3.9) 2 max 305 nm (10910€ 2.1) solventi hexane 40 80 200 240 280 120 160 m/e Q Search BC NMR Spectrum (100.0 MH, CDC, solution) DEPT CH CH cht profon decoupled 200 8 (ppm)...
In the boxes below, provide the structure of the compound that corresponds to each set of spectra...
In the boxes below, provide the structure of the compound that corresponds to each set of spectra on the next 5 pages. Be sure to show your work on the spectra for full credit. Account for all numbered peaks in the IR. In peaks if necessary. Assign all NMR spectra as completely as possible: number of NMR signals, integration, chemical shift, and splitting the mass spectrum, determine degrees of unsaturation and label 4 IR Spectrum 3000 2000 1 1600 1200...
5. (8 Pts) Using the following spectra, draw a possible structure for C5H19NO2- DOU= Expected Structure...
5. (8 Pts) Using the following spectra, draw a possible structure for C5H19NO2- DOU= Expected Structure 6H, d 1H,d 2H, s 1H, S 1H,m 12 10 8 6 4 2 0 PPM 180 160 140 120 80 60 40 20 100 PPM
Instructions: Write the structure of each molecular formula using the IR and Mass Spec spectra. Important...
Instructions: Write the structure of each molecular formula using the IR and Mass Spec spectra. Important that you justify with at least two arguments in each spectrum for which you present that structure. CH 3500 3000 1500 1000 2500 2000 Wavenumber(cm-1) 20 30 40 50 60 70 80 90 100 110 120 CHBr 100 Transmittance 3500 3000 2500 2000 Wavenumber(cm-1) 1500 1000 119 135 100 110 120 130 140 150 160 170 180 190 10 20 30 40 50 60...
Attached are four spectra for isomer with the MF= c12h14o4. Determine the structure for each molecule...
Attached are four spectra for isomer with the MF=
c12h14o4. Determine the structure for each molecule and draw them
below.
problem 63 IR Spectrum (CCI, solution) 1765 4000 3000 1200 800 2000 V (cm ) Mass Spectrum UV Spectrum & 8 8 g 8 of base 2 mar 269 nm (10910€ 2.7) humax 263 nm (10910 2.7) M -222 (< 1) 169 sahent: methanol 8 C12H1404 240 280 40 80 120 160 200 13C NMR Spectrum (50.0 MHz, COCI, solution)...
Determine the structure of the molecule with formula CeH,OCI from the following spectra and explain your...
Determine the structure of the molecule with formula CeH,OCI from the following spectra and explain your reasoning: 3. 875 1773 1738 IR Spectrum (liquid film) 800 2000 ,1600 1200 V (em1) 3000 4000 13C NMR Spectrum 100.0 MHz, CDA, solutanj 132 13t ppm preien decoupled r82 131 Dpmsolent 160 200 120 80 40 δ(ppm) 0 H NMR Spectrum (ad0 MH2. COc soution) exparslon 80 7.5 7.0 ppm TMS 10 9 87 654 3 2 1 δ (ppm)
determine the structure of your unknown from the molecular formula, IR, and 13C NMR spectra. assign all of your 13C NMR...
determine the structure of your unknown from the molecular
formula, IR, and 13C NMR spectra. assign all of your 13C NMR
absorptions.
IR & 1C NMR Lab Unknown Your group's mission is to determine the structure of your unknown from the molecular forrmula, IR and 13C NMR spectra. Assign all of your C NMR absorptions. You want to know which resonances correspond to which parts of the product's structure. The best way to do this is to draw a picture...
Bellow is the 13C NMR spectra including the integrations of the compound. Show the structure of...
Bellow is the 13C NMR spectra including the integrations of the
compound. Show the structure of each (remember from the integration
that S singlet, d doublet, t triplet …. So on)
Draw the compound structure for each spectrum and show every
line belong to which carbon in the molecule
Example:
Problem (3) molecular formula is: C6H8O
(cyclic compound)
H O CDClj 100 80 60 40 20 160 140 120 220 200 180 PPM (8)
C NMR data provided when possible, show part Determine the structure of CHO from the IR,...
C NMR data provided when possible, show part Determine the structure of CHO from the IR, NR and structures that correspond to individual NMR resonances 1800 1600 2000 1400 1200 1000 000 3600 3400 3200 3000 2800 2600 2400 2200 1.10 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 normal decoupled 18C DEPT-135: (+) indicates positive peak (-) indicates negative peak indicates no peak DEPT-90 peaks indicated by Proposed Structure 200 180 160 140 120 100 80...
Combined IR Spectroscopy and Mass Spectrometry Problems Determine the molecular formula and possible structures for each unknown based on the given spectra. Use the IR Correlation Table. Note: DOU - Cs+1-0.5(#Hs-#Ns+Whalogens). SHOW YOUR WORK! 100 - 2191 Relative Intensity 10 15 20 25 30 40 35 m/z 45 50 55 60
BONUS (10 pts) Determine the compound structure based on the spectra below. Annotate spectra to receive full credit 3457 IR Spectrum (CHCI solution) 4000 3000 2000 V (cm 1600 ) 1200 800 Mass Spectrum TY of base peak UV Spectrum 2 max 263 nm (1090€ 3.9) 2 max 305 nm (10910€ 2.1) solventi hexane 40 80 200 240 280 120 160 m/e Q Search BC NMR Spectrum (100.0 MH, CDC, solution) DEPT CH CH cht profon decoupled 200 8 (ppm)...
In the boxes below, provide the structure of the compound that corresponds to each set of spectra on the next 5 pages. Be sure to show your work on the spectra for full credit. Account for all numbered peaks in the IR. In peaks if necessary. Assign all NMR spectra as completely as possible: number of NMR signals, integration, chemical shift, and splitting the mass spectrum, determine degrees of unsaturation and label 4 IR Spectrum 3000 2000 1 1600 1200...
5. (8 Pts) Using the following spectra, draw a possible structure for C5H19NO2- DOU= Expected Structure 6H, d 1H,d 2H, s 1H, S 1H,m 12 10 8 6 4 2 0 PPM 180 160 140 120 80 60 40 20 100 PPM
Instructions: Write the structure of each molecular formula using the IR and Mass Spec spectra. Important that you justify with at least two arguments in each spectrum for which you present that structure. CH 3500 3000 1500 1000 2500 2000 Wavenumber(cm-1) 20 30 40 50 60 70 80 90 100 110 120 CHBr 100 Transmittance 3500 3000 2500 2000 Wavenumber(cm-1) 1500 1000 119 135 100 110 120 130 140 150 160 170 180 190 10 20 30 40 50 60...
Attached are four spectra for isomer with the MF=
c12h14o4. Determine the structure for each molecule and draw them
below.
problem 63 IR Spectrum (CCI, solution) 1765 4000 3000 1200 800 2000 V (cm ) Mass Spectrum UV Spectrum & 8 8 g 8 of base 2 mar 269 nm (10910€ 2.7) humax 263 nm (10910 2.7) M -222 (< 1) 169 sahent: methanol 8 C12H1404 240 280 40 80 120 160 200 13C NMR Spectrum (50.0 MHz, COCI, solution)...
Determine the structure of the molecule with formula CeH,OCI from the following spectra and explain your reasoning: 3. 875 1773 1738 IR Spectrum (liquid film) 800 2000 ,1600 1200 V (em1) 3000 4000 13C NMR Spectrum 100.0 MHz, CDA, solutanj 132 13t ppm preien decoupled r82 131 Dpmsolent 160 200 120 80 40 δ(ppm) 0 H NMR Spectrum (ad0 MH2. COc soution) exparslon 80 7.5 7.0 ppm TMS 10 9 87 654 3 2 1 δ (ppm)
determine the structure of your unknown from the molecular
formula, IR, and 13C NMR spectra. assign all of your 13C NMR
absorptions.
IR & 1C NMR Lab Unknown Your group's mission is to determine the structure of your unknown from the molecular forrmula, IR and 13C NMR spectra. Assign all of your C NMR absorptions. You want to know which resonances correspond to which parts of the product's structure. The best way to do this is to draw a picture...
Bellow is the 13C NMR spectra including the integrations of the
compound. Show the structure of each (remember from the integration
that S singlet, d doublet, t triplet …. So on)
Draw the compound structure for each spectrum and show every
line belong to which carbon in the molecule
Example:
Problem (3) molecular formula is: C6H8O
(cyclic compound)
H O CDClj 100 80 60 40 20 160 140 120 220 200 180 PPM (8)
C NMR data provided when possible, show part Determine the structure of CHO from the IR, NR and structures that correspond to individual NMR resonances 1800 1600 2000 1400 1200 1000 000 3600 3400 3200 3000 2800 2600 2400 2200 1.10 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 normal decoupled 18C DEPT-135: (+) indicates positive peak (-) indicates negative peak indicates no peak DEPT-90 peaks indicated by Proposed Structure 200 180 160 140 120 100 80...
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