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![13 (a) CH3 io-CH3 Chloe (b) (a) CH3 -o-CH3 1(c) (d) (a) HNMR a =) b = = 1.4 ppm 1 = 3.5ppm ] 13 CNMIR ass= 20 ppm b S= 60 pp](http://img.homeworklib.com/questions/471fe6d0-c2d9-11ea-8fb2-6799892792db.png?x-oss-process=image/resize,w_560)
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pounds that have the following 'H NMR spectra features. ures for compound oublet and one septet...
4. Consider the following two diastercomers: Both compounds generate 'H NMR spectra with the following signals:...
4. Consider the following two diastercomers: Both compounds generate 'H NMR spectra with the following signals: A multiplet between 7.20-7.63 ppm with an integration of 5H Two separate doublets between 5.70-6.50 ppm, each with an integration of 1H A singlet around 1.30 ppm with an integration of 9H Despite the similarities, how could you differentiate between the H NMR spectra of these isomers? 5. Assign each set of protons to their appropriate signals in the 'H NMR spectrum shown below....
Determine the compound using the Mass Spec, IR, C NMR, and H NMR. H Nmr splitting...
Determine the compound using the Mass Spec, IR, C NMR, and H
NMR.
H Nmr splitting pattern from left to right: singlet, triplet,
septet (7), singlet, doublet
Compound 1 Mass Spec: Mpeak : 162 IR: 100 - TRANSMETTANCEI21 DO 4000 2000 2000 1500 1500 - 1000 13C NMR: Broadband in provided below. DEPT data is in the provided table. 200.180.160.140 120 100.80 '60.40.20 PPM DEPT -135 positive DEPT-90 positive -------------- PPM 191 149 138 137 135 128 126 | 34...
7. Which compound below be H-1 NMR 0.9 ppm (quartet fits the following spectral data? (6...
7. Which compound below be H-1 NMR 0.9 ppm (quartet fits the following spectral data? (6 points) 1.2 ppm (sextet 2 hydrogens), 2.1 ppm (triplet, hydrogens), 4.3 ppm (singlet 3 hydrogens) C-13 NMR 5 signals 25 ppr ppm (CH2); 61 ppm: (CH3) 198 Ppm (C). IR strong peak 1735 cm Ignals 25 ppm (CH): 35 ppm (CH2), 46 ppm (CH2); 61 ppm: em Mass Spee parent M+ = 102 Mass Spec paren ou 0 H2 CH3 HjC Holo H3C- CC...
10. (8 points) For each of the following molecules predict the "C and 'H NMR spectra....
10. (8 points) For each of the following molecules predict the "C and 'H NMR spectra. For the "C NMR predict the number of peaks and the shift. For the 'H NMR you will need to predict the shift, multiplicity, and integration of the peaks. CH3 HC не ең, H₃C =O % b-CH3 11. (6 points) Propose a structure for a compound with the chemical formula C.H.Cl, that fits the following 1H NMR data 2.18 8 (3H, singlet) 4.16 8...
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of...
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of the unknown compound. Question 5 4 1 6 5 8 10 11 Ppm The 13C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its 1H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. uestion 2 220 200 160 140 120 PPM 100 80 240 180 60 40 20 Create OscerSketch Answer 2 What would be...
2.) When we take 1H or 13C spectra, we typically use CDCI3 as a solvent. What...
2.) When we take 1H or 13C spectra, we typically use CDCI3 as a solvent. What are the 'H and 13C chemical shifts for this compound? Why does it appear as a triplet in 13C spectra? (Hint: The nucleus of D has a spin of 1.) 3.) How many 13C NMR resonances do you expect for m-xylene and p-xylene, respectively? 4.) Look up the structure of isophorone. How many 'H NMR peaks (ignore splitting) do you expect for this compound?...
Identify each compound in the following questions and make assignments in the 1H NMR a) First...
Identify each compound in the following questions and make
assignments in the 1H NMR
a) First spectra: Compound 1, 1H NMR given, and has a strong
absorbance in the IR at 1715 cm-1
b) Second spectra: Compound 2, a carboxylic acid of formula
C8H6O3Cl2 with 1H NMR given
c) Third spectra: Compound 3 with molecular formula of
C6H9ClO2, with 1H NMR given (the four signal from highest to lowest
chemical shift are quartet, quartet, double, and triplet)
d) Compound 4,...
A compound of unknown structure gave the following spectroscopic data: Mass spectrum: M+ = 88.1 IR:...
A compound of unknown structure gave the following
spectroscopic data:
Mass spectrum: M+ = 88.1
IR: 3600cm-1
1H NMR: 1.4 (2H, quartet, J=7Hz); 1.2 (6H, singlet); 1.0 (1H,
singlet); 0.9 (3H, triplet, J=7Hz)
13C NMR: 74, 35, 27, 25
a. assuming that the compound contains C and H but may or may not
contain O, give three possible molecular formulas.
b. how many protons (H) does the compound contain?
c. what functional group(s) does the compound contain?
d. how many...
For NMR Structure of following compounds: Why splitting is like this?Why chemical shifts are like this?So...
For NMR Structure of following compounds:
Why splitting is like this?Why chemical shifts are like this?So
i have the answer of this question here.But i need detailed
explanation.
(a) Sketch the 'H NMR spectrum you would expect for the following compounds, showing the splitting patterns, chemical shifts and integration of each signal. Explain in detail. (40P) OH CI CH(CH3)2 4-isopropylphenol H3C OH 3-chloro-2-buten-1-ol 9.06 ОН 6.68 6.68 7.22 27.22 12.87 120 120 10 PPM Two CH3 groups appear as doublet...
Draw the 1H NMR spectra you would expect for the following compound. Note that you must...
Draw the 1H NMR spectra you would expect for the following
compound. Note that you must put the peaks at the proper range of
chemical shift, with proper integral labeled below the peak, and
the proper spin-spin splitting.
CHM 2440 (FA 2013) 8 (ppm) Label the NON-equivalent H's: H3CO Moco WACH NHCH3 Label of H's chemical shift integral spin-spin splitting 8 (ppm)
4. Consider the following two diastercomers: Both compounds generate 'H NMR spectra with the following signals: A multiplet between 7.20-7.63 ppm with an integration of 5H Two separate doublets between 5.70-6.50 ppm, each with an integration of 1H A singlet around 1.30 ppm with an integration of 9H Despite the similarities, how could you differentiate between the H NMR spectra of these isomers? 5. Assign each set of protons to their appropriate signals in the 'H NMR spectrum shown below....
Determine the compound using the Mass Spec, IR, C NMR, and H
NMR.
H Nmr splitting pattern from left to right: singlet, triplet,
septet (7), singlet, doublet
Compound 1 Mass Spec: Mpeak : 162 IR: 100 - TRANSMETTANCEI21 DO 4000 2000 2000 1500 1500 - 1000 13C NMR: Broadband in provided below. DEPT data is in the provided table. 200.180.160.140 120 100.80 '60.40.20 PPM DEPT -135 positive DEPT-90 positive -------------- PPM 191 149 138 137 135 128 126 | 34...
7. Which compound below be H-1 NMR 0.9 ppm (quartet fits the following spectral data? (6 points) 1.2 ppm (sextet 2 hydrogens), 2.1 ppm (triplet, hydrogens), 4.3 ppm (singlet 3 hydrogens) C-13 NMR 5 signals 25 ppr ppm (CH2); 61 ppm: (CH3) 198 Ppm (C). IR strong peak 1735 cm Ignals 25 ppm (CH): 35 ppm (CH2), 46 ppm (CH2); 61 ppm: em Mass Spee parent M+ = 102 Mass Spec paren ou 0 H2 CH3 HjC Holo H3C- CC...
10. (8 points) For each of the following molecules predict the "C and 'H NMR spectra. For the "C NMR predict the number of peaks and the shift. For the 'H NMR you will need to predict the shift, multiplicity, and integration of the peaks. CH3 HC не ең, H₃C =O % b-CH3 11. (6 points) Propose a structure for a compound with the chemical formula C.H.Cl, that fits the following 1H NMR data 2.18 8 (3H, singlet) 4.16 8...
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of the unknown compound. Question 5 4 1 6 5 8 10 11 Ppm The 13C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its 1H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. uestion 2 220 200 160 140 120 PPM 100 80 240 180 60 40 20 Create OscerSketch Answer 2 What would be...
2.) When we take 1H or 13C spectra, we typically use CDCI3 as a solvent. What are the 'H and 13C chemical shifts for this compound? Why does it appear as a triplet in 13C spectra? (Hint: The nucleus of D has a spin of 1.) 3.) How many 13C NMR resonances do you expect for m-xylene and p-xylene, respectively? 4.) Look up the structure of isophorone. How many 'H NMR peaks (ignore splitting) do you expect for this compound?...
Identify each compound in the following questions and make
assignments in the 1H NMR
a) First spectra: Compound 1, 1H NMR given, and has a strong
absorbance in the IR at 1715 cm-1
b) Second spectra: Compound 2, a carboxylic acid of formula
C8H6O3Cl2 with 1H NMR given
c) Third spectra: Compound 3 with molecular formula of
C6H9ClO2, with 1H NMR given (the four signal from highest to lowest
chemical shift are quartet, quartet, double, and triplet)
d) Compound 4,...
A compound of unknown structure gave the following
spectroscopic data:
Mass spectrum: M+ = 88.1
IR: 3600cm-1
1H NMR: 1.4 (2H, quartet, J=7Hz); 1.2 (6H, singlet); 1.0 (1H,
singlet); 0.9 (3H, triplet, J=7Hz)
13C NMR: 74, 35, 27, 25
a. assuming that the compound contains C and H but may or may not
contain O, give three possible molecular formulas.
b. how many protons (H) does the compound contain?
c. what functional group(s) does the compound contain?
d. how many...
For NMR Structure of following compounds:
Why splitting is like this?Why chemical shifts are like this?So
i have the answer of this question here.But i need detailed
explanation.
(a) Sketch the 'H NMR spectrum you would expect for the following compounds, showing the splitting patterns, chemical shifts and integration of each signal. Explain in detail. (40P) OH CI CH(CH3)2 4-isopropylphenol H3C OH 3-chloro-2-buten-1-ol 9.06 ОН 6.68 6.68 7.22 27.22 12.87 120 120 10 PPM Two CH3 groups appear as doublet...
Draw the 1H NMR spectra you would expect for the following
compound. Note that you must put the peaks at the proper range of
chemical shift, with proper integral labeled below the peak, and
the proper spin-spin splitting.
CHM 2440 (FA 2013) 8 (ppm) Label the NON-equivalent H's: H3CO Moco WACH NHCH3 Label of H's chemical shift integral spin-spin splitting 8 (ppm)
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