Homework Answers
In the proton nmr, the triplet signal around 1 ppm corresponds to three protons attached to carbon atom 4. The signlet around 2 ppm correponds to three protons attached to carbon atom 1. The quartet around 4.1 ppm corresponds to two protons attached to carbon atom 3.
In the carbon nmr, the signal at 171.8 corresponds to carbon 2; the signal at 60.8 corresponds to carbon 3; the signal at 20.9 corresponds to carbon 1 and the signal at 14.2 corresponds to carbon 4.
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Identify the the H-nmr and C-nmr peaks/signmas of ethyl acetate. 2 33 4.0 3.5 3.0 2.5 20 Chemical Shit (ppm) 13C 6...
Provide the justification for the structure of ethyl acutate. Name 9 H H нсь со ссн,...
Provide the justification for the structure of ethyl
acutate.
Name 9 H H нсь со ссн, Figure 1. Structural representation of ethyl acetate Table 1. 'H and 13C NMR Data for ethyl acetate Proton peaks (ppm) Carbon peaks (ppm) Proton Justification: Carbon Justification: 1H NMR Data 5.6 5.4 5.2 5.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 1 (ppm) 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -0.4 13C...
Interpret the 1H NMR and 13C NMR spectra data provided as evidence of the structure of styrene.
Interpret the 1H NMR and 13C NMR spectra data provided as
evidence of the structure of styrene.
Styrene H-NMR Styrene C-NMR We were unable to transcribe this imageStyrene in CDC13 VI 135 130 125 120 ppm 200 190 180 170 160 50 140 130 120 110 100 90 80 70 60 50 4030 20 10 ppm
Styrene H-NMR Styrene C-NMR
Styrene in CDC13 VI 135 130 125 120 ppm 200 190 180 170 160 50 140 130 120 110 100...
label the spectrum OTBS Meo Yome Me H NMR spectrum (CDC13, 400 MHz) 8.5 8.0 7.5...
label the spectrum
OTBS Meo Yome Me H NMR spectrum (CDC13, 400 MHz) 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 f1 (ppm) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 18C NMR spectrum (CDCI, 100 MHz) 210 200 190 180 170 160 150 140 130 120 110 100 fi (ppm) 90 80 70 60 50 40 30 20 10 -10
Use the spectra below to determine the molecular formula and chemical structure of the unknown compound....
Use the spectra below to determine the molecular formula and
chemical structure of the unknown compound.
MASS 142 % of Base Peak 1147 40 50 70 80 5 100 % Transmittance Jari- 3000 1000 4000 'H NMR 300 MERE 2000 Wavenumber (cm) 3.0 25 20 15 Ppm 4.0 3.5 C/DEPT NMR 75.5 MHz ppm 60 50 40 80 70 90 100 110 120 170 160 150 140 130 ppm 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm COSY 300 MHz...
Please answer questions 2,3, and 4 that correspond to the nmr spectra of (2E,6E)-2,6-dibenzylidenecyclohexanone. Product: ppm...
Please answer questions 2,3, and 4 that correspond to the nmr
spectra of (2E,6E)-2,6-dibenzylidenecyclohexanone.
Product:
ppm BE 06 135 94 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 ppm 30 20 2. Are there any non-aromatic or non-alkene protons seen on the 'H NMR spectrum (yes or no)? If so, list the corresponding ppm value(s): 3. Are there any peaks upfield of 70 ppm seen in the 13C NMR spectrum (yes or...
Determine the structure using NMR. CH1402 Nu. 4.0 Proton NMR 3.5 3.0 1.6 PPM 30.4 ....
Determine the structure using NMR.
CH1402 Nu. 4.0 Proton NMR 3.5 3.0 1.6 PPM 30.4 . integral values 50.3 - 18.9 TITT 160 166 140 120 100 20 PPM Carbon 13 NMR
H2 Ha a) Given that the 'H NMR spectrum was acquired at 300 MHz, convert the ppm values...
H2 Ha a) Given that the 'H NMR spectrum was acquired at 300 MHz, convert the ppm values for the alkenyl region to Hz and provide the cis proton coupling constant to 1 decimal place. CEC Ha OH b) Please provide the chemical shift values for i) Both alkyne carbons i) The aromatic carbon bearing the substituent ii)H iv) H v) H vi) H H NMR spectrum as 25 1C NMR spectrum 9911 1C NMR spectrum 90 60 10 170...
Analyze the proton and carbon NMR of hexane PROTON_01 4632-2_Hexane -109 7.5 7.0 6.5 6.0 5.5...
Analyze the proton and carbon NMR of hexane
PROTON_01 4632-2_Hexane -109 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 CARBON_01 4632-2_Hexane www hwilowWWWMWWMWANAMUbwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww/WWWWWWWWWWWWwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww TTTT 230 220 210 200 190 180 170 160 150 140 130 120 110 fi (ppm) 100 90 80 70 60 50 40 30 20 10 0 -10
What is the molecular structure? 2 4 CHAPTER 8 ASSIGNED PROBLEMS Problem 8.43A MASS I 20...
What is the molecular structure?
2
4 CHAPTER 8 ASSIGNED PROBLEMS Problem 8.43A MASS I 20 sen par 43 100 131 85 109 95 1827 ? 185 50 200 50 100 150 200 m/z IR 100 90 E 70 4000 3000 2000 1000 Wavenumber (cm-1) 'H NMR 600 MHz 1260 1240 Hz 780 760 740 Hz 4.5 4.0 3.5 3.0 2.5 2.0 1.5 Ppm 1C/DEPT NMR 150.9 MHz 170 160 150 140 130 120 110 100 90 80 70 60...
Analyze the proton and carbon NMR for hexene Prootn NMR hexene 1.967 3.88 -062 7.5 7.0...
Analyze the proton and carbon NMR for hexene
Prootn NMR hexene 1.967 3.88 -062 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 fi (ppm) Carbon NMR Hexene snowboy na pag may not be an anomanga boramahala naman po mula apabalintonpohumilitando un paloma hutwowa lan halangalawang bombando adopewa hawahanan tonton ompaauwbokay naponta w/w lugrad payun g taon tunay walang para el hogabypoint ben oylamatwaliwabommal Mamaannons 230 220 210 200190 180 170 160 150 140...
Provide the justification for the structure of ethyl
acutate.
Name 9 H H нсь со ссн, Figure 1. Structural representation of ethyl acetate Table 1. 'H and 13C NMR Data for ethyl acetate Proton peaks (ppm) Carbon peaks (ppm) Proton Justification: Carbon Justification: 1H NMR Data 5.6 5.4 5.2 5.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 1 (ppm) 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -0.4 13C...
Interpret the 1H NMR and 13C NMR spectra data provided as
evidence of the structure of styrene.
Styrene H-NMR Styrene C-NMR We were unable to transcribe this imageStyrene in CDC13 VI 135 130 125 120 ppm 200 190 180 170 160 50 140 130 120 110 100 90 80 70 60 50 4030 20 10 ppm
Styrene H-NMR Styrene C-NMR
Styrene in CDC13 VI 135 130 125 120 ppm 200 190 180 170 160 50 140 130 120 110 100...
label the spectrum
OTBS Meo Yome Me H NMR spectrum (CDC13, 400 MHz) 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 f1 (ppm) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 18C NMR spectrum (CDCI, 100 MHz) 210 200 190 180 170 160 150 140 130 120 110 100 fi (ppm) 90 80 70 60 50 40 30 20 10 -10
Use the spectra below to determine the molecular formula and
chemical structure of the unknown compound.
MASS 142 % of Base Peak 1147 40 50 70 80 5 100 % Transmittance Jari- 3000 1000 4000 'H NMR 300 MERE 2000 Wavenumber (cm) 3.0 25 20 15 Ppm 4.0 3.5 C/DEPT NMR 75.5 MHz ppm 60 50 40 80 70 90 100 110 120 170 160 150 140 130 ppm 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm COSY 300 MHz...
Please answer questions 2,3, and 4 that correspond to the nmr
spectra of (2E,6E)-2,6-dibenzylidenecyclohexanone.
Product:
ppm BE 06 135 94 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 ppm 30 20 2. Are there any non-aromatic or non-alkene protons seen on the 'H NMR spectrum (yes or no)? If so, list the corresponding ppm value(s): 3. Are there any peaks upfield of 70 ppm seen in the 13C NMR spectrum (yes or...
Determine the structure using NMR.
CH1402 Nu. 4.0 Proton NMR 3.5 3.0 1.6 PPM 30.4 . integral values 50.3 - 18.9 TITT 160 166 140 120 100 20 PPM Carbon 13 NMR
H2 Ha a) Given that the 'H NMR spectrum was acquired at 300 MHz, convert the ppm values for the alkenyl region to Hz and provide the cis proton coupling constant to 1 decimal place. CEC Ha OH b) Please provide the chemical shift values for i) Both alkyne carbons i) The aromatic carbon bearing the substituent ii)H iv) H v) H vi) H H NMR spectrum as 25 1C NMR spectrum 9911 1C NMR spectrum 90 60 10 170...
Analyze the proton and carbon NMR of hexane
PROTON_01 4632-2_Hexane -109 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 CARBON_01 4632-2_Hexane www hwilowWWWMWWMWANAMUbwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww/WWWWWWWWWWWWwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww TTTT 230 220 210 200 190 180 170 160 150 140 130 120 110 fi (ppm) 100 90 80 70 60 50 40 30 20 10 0 -10
What is the molecular structure?
2
4 CHAPTER 8 ASSIGNED PROBLEMS Problem 8.43A MASS I 20 sen par 43 100 131 85 109 95 1827 ? 185 50 200 50 100 150 200 m/z IR 100 90 E 70 4000 3000 2000 1000 Wavenumber (cm-1) 'H NMR 600 MHz 1260 1240 Hz 780 760 740 Hz 4.5 4.0 3.5 3.0 2.5 2.0 1.5 Ppm 1C/DEPT NMR 150.9 MHz 170 160 150 140 130 120 110 100 90 80 70 60...
Analyze the proton and carbon NMR for hexene
Prootn NMR hexene 1.967 3.88 -062 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 fi (ppm) Carbon NMR Hexene snowboy na pag may not be an anomanga boramahala naman po mula apabalintonpohumilitando un paloma hutwowa lan halangalawang bombando adopewa hawahanan tonton ompaauwbokay naponta w/w lugrad payun g taon tunay walang para el hogabypoint ben oylamatwaliwabommal Mamaannons 230 220 210 200190 180 170 160 150 140...
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