Homework Answers
The unknown is Methyl benzoate (IUPAC: methyl benzoate )
The 13C NMR assignments are shown below.
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based on 13c nmr find unknown compound and label each peak.
ppm 200 180 160 140...
1.Based on its 13C NMR spectrum, how many types of carbon (i.e., sets of equivalent carbons)...
1.Based on its 13C NMR spectrum, how many types of carbon
(i.e., sets of equivalent carbons) are there in your unknown
monosubstituted benzene starting material?
2. How many different types of aromatic (benzene ring) carbons
can be seen in the 13C NMR spectrum of your unknown monosubstituted
benzene starting material?
3 How many different types of aromatic (benzene ring) carbons
can be seen in the 13C NMR spectrum of your unknown monosubstituted
benzene starting material?
CENZORZI2013301 13CNMR #1 (unknowns in...
13C NMR 1. Propose a structure for the compound CsH12, with the following 13C NMR spectral...
13C NMR 1. Propose a structure for the compound CsH12, with the following 13C NMR spectral data. 160 140 120 80 60 40 20 0 200 180 CDS-00-748 100 ppm 2. Propose a structure for the compound CaH;Br, with the following C NMR spectral data. 200 180 160 140 120 80 60 40 100 ppm 20 0 3. Propose a structure for the compound C H2O2, with the following "'C NMR spectral data. 200 180 160 140 120 30600 T...
The 1H-NMR and 13C-NMR spectra of an unknown compound (formula C8H10) are shown below. Draw the structure of the unknown...
The 1H-NMR and 13C-NMR spectra of an unknown compound (formula
C8H10) are shown below. Draw the structure of the unknown compound.
The total integration of the peaks at around 7 ppm is 4. The
integration of the peak at around 2 ppm is 6.
7 6 5 4 3 ppm TTTTTTTTTTTTTTTT 200 180 160 140 120 100 80 60 40 20 0 pom CH3 Create OscerSketch Answer 8 Incorrect: Answer has an incorrect structure.
the compound is dibenzalacetone 3C - NMR (expansion 120-195 ppm) + DEPT (400 MHz) in CDC13...
the
compound is dibenzalacetone
3C - NMR (expansion 120-195 ppm) + DEPT (400 MHz) in CDC13 188.92 143.32 134.79 -- 130.50 128.97 128.39 -125.42 w 190 185 180 175 170 165 160 155 150 145 140 135 130 125 ppm 13C NMR (Draw labelled structure here) (10 marks) Type a Assignment Chemical shift, 8 (ppm, 2 decimal places) 9 Indicate whether it is a C CH CH Jor CH
6-A compound (C6H4C120) has the following 1H NMR, 13C NMR, and IR spectra. Propose a structure...
6-A compound (C6H4C120) has the following 1H NMR, 13C NMR, and IR spectra. Propose a structure consistent with this data C6H40120 100 Transmittance -1577 SHE 4000 3000 2000 1000 Waven umhers (cm) 121.2 ppm 155 150 145 140 135 130 125 120 115 110 105 100 95 90 85 80 ppm 75 0606067 60 S SO 57
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...
What is the structure of the unknown molecule based on 1H, 13C NMR and IR NMR-115...
What is the structure of the unknown molecule based on 1H, 13C NMR
and IR
NMR-115 (700MHz) MW: 152.15 Analysis: C, 63.15; H, 5.30; o, 31.55 galdenadte 70 60 ppm 80 160 150 140 130 120 110 100 9 190 180
Which compound corresponds to the 13C NMR spectrum below? 240 220 200 180 160 140 100...
Which compound corresponds to the 13C NMR spectrum below? 240 220 200 180 160 140 100 80 50 120 PPM 40 20 0 to in OH A B с D E OA OB What is the product in the following reaction sequence? Br 1. NaN, 2. Hz (excess). Pdic NH NH2 B С D E OA OB Ос OD OE Identify which of the following molecules corresponds to the MS data below. tot Le ОН А D E F 100...
Which compound matches the following 13C NMR? 160 140 120 100 60 40 80 PPM NH2...
Which compound matches the following 13C NMR? 160 140 120 100 60 40 80 PPM NH2 A. B. C. D. H ОА OD Ос OB
28. A compound with the molecular formula of C3H.ON shows 1H NMR and 13C NMR as...
28. A compound with the molecular formula of C3H.ON shows 1H NMR and 13C NMR as below. Give the most plausible structure in the box. 2H, 3 peaks 2H, 3 peaks 1H, 1 peak PPM 180 160 140 120 100 80 60 40 20 PPM
1.Based on its 13C NMR spectrum, how many types of carbon
(i.e., sets of equivalent carbons) are there in your unknown
monosubstituted benzene starting material?
2. How many different types of aromatic (benzene ring) carbons
can be seen in the 13C NMR spectrum of your unknown monosubstituted
benzene starting material?
3 How many different types of aromatic (benzene ring) carbons
can be seen in the 13C NMR spectrum of your unknown monosubstituted
benzene starting material?
CENZORZI2013301 13CNMR #1 (unknowns in...
13C NMR 1. Propose a structure for the compound CsH12, with the following 13C NMR spectral data. 160 140 120 80 60 40 20 0 200 180 CDS-00-748 100 ppm 2. Propose a structure for the compound CaH;Br, with the following C NMR spectral data. 200 180 160 140 120 80 60 40 100 ppm 20 0 3. Propose a structure for the compound C H2O2, with the following "'C NMR spectral data. 200 180 160 140 120 30600 T...
The 1H-NMR and 13C-NMR spectra of an unknown compound (formula
C8H10) are shown below. Draw the structure of the unknown compound.
The total integration of the peaks at around 7 ppm is 4. The
integration of the peak at around 2 ppm is 6.
7 6 5 4 3 ppm TTTTTTTTTTTTTTTT 200 180 160 140 120 100 80 60 40 20 0 pom CH3 Create OscerSketch Answer 8 Incorrect: Answer has an incorrect structure.
the
compound is dibenzalacetone
3C - NMR (expansion 120-195 ppm) + DEPT (400 MHz) in CDC13 188.92 143.32 134.79 -- 130.50 128.97 128.39 -125.42 w 190 185 180 175 170 165 160 155 150 145 140 135 130 125 ppm 13C NMR (Draw labelled structure here) (10 marks) Type a Assignment Chemical shift, 8 (ppm, 2 decimal places) 9 Indicate whether it is a C CH CH Jor CH
6-A compound (C6H4C120) has the following 1H NMR, 13C NMR, and IR spectra. Propose a structure consistent with this data C6H40120 100 Transmittance -1577 SHE 4000 3000 2000 1000 Waven umhers (cm) 121.2 ppm 155 150 145 140 135 130 125 120 115 110 105 100 95 90 85 80 ppm 75 0606067 60 S SO 57
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...
What is the structure of the unknown molecule based on 1H, 13C NMR
and IR
NMR-115 (700MHz) MW: 152.15 Analysis: C, 63.15; H, 5.30; o, 31.55 galdenadte 70 60 ppm 80 160 150 140 130 120 110 100 9 190 180
Which compound corresponds to the 13C NMR spectrum below? 240 220 200 180 160 140 100 80 50 120 PPM 40 20 0 to in OH A B с D E OA OB What is the product in the following reaction sequence? Br 1. NaN, 2. Hz (excess). Pdic NH NH2 B С D E OA OB Ос OD OE Identify which of the following molecules corresponds to the MS data below. tot Le ОН А D E F 100...
Which compound matches the following 13C NMR? 160 140 120 100 60 40 80 PPM NH2 A. B. C. D. H ОА OD Ос OB
28. A compound with the molecular formula of C3H.ON shows 1H NMR and 13C NMR as below. Give the most plausible structure in the box. 2H, 3 peaks 2H, 3 peaks 1H, 1 peak PPM 180 160 140 120 100 80 60 40 20 PPM
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