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HNMR - Problem Set-3 1. How would you distinguish between the compounds in each of the...
'HNMR - Problem Set-3 How would you distinguish between the compounds in each of the following...
'HNMR - Problem Set-3 How would you distinguish between the compounds in each of the following pairs by 'H NMR? a. CH CH2CH2OCH; and CH3CH2OCH2CH3 b. BrCH CH CH Br and BrCH2CH2CH NO2 CH3 CH3 c. CH:CH-CHCH; and CH3 CH CH CH3 CH CH d. CH3-C-C-OCH; CH OCH and CH3-C-CH; OCH e. H3C CH; -C-CH3 CH; and -CHỤCCH CH 'HNMR-Problem Set-3 (Page 1 of 2) Name Write the structural formula for each of the following compounds from the 'H NMR...
Pleaseeeee 2. Explain how you would use 'HNMR and IR to distinguish between each of the...
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2. Explain how you would use 'HNMR and IR to distinguish between each of the following pairs: In other words, what difference(s) would you expect in (a) the IR spectra of the two compounds and (b) what difference(s) would you expect in the NMR spectra of the two compounds. (15 points). DO NOT INCLUDE INFO THAT IS COMMON FOR BOTH (a) A IR for B IR for A NMR for A NMR for B
2. Explain how you would...
DMS ROOR use 'HNMR and IR to distinguish between 2. Explain how you would use what...
DMS ROOR use 'HNMR and IR to distinguish between 2. Explain how you would use what difference(s) would you expect in (a) the IR uish between each of the and (b) what difference() would you expect in the NMR oints). DO NOT INCLUDE INFO THAT IS following pairs : In other words, what difference(s) Spectra of the two compounds and (0) what differen spectra of the two compounds. (15 points). DO NOT COMMON FOR BOTH OSCH IR for A IR...
How would you NMR (^H or 13C) spectroscopy to distinguish between the following pairs of compounds?
How would you NMR (^H or 13C) spectroscopy to distinguish between the following pairs of compounds?
2. Describe the infrared absorption frequencies that would allow you to distinguish between the following pairs...
2. Describe the infrared absorption frequencies that
would allow you to distinguish between the following pairs of
compounds. (10 points)
2. Describe the infrared absorption frequencies that would allow you to distinguish between the following pairs of compounds. (10 POINTS) (a) 2,3-dimethylbut-2-ene and 2,3-dimethylbut--ene (b) cyclohexa-1,3-diene and cyclohexa-1,4-diene pentanal pentan-2-one butanamide pentan-3-one (e) CH3(CH2)5-С-СーH and CH3(CH2)6_C_N (f) CH,CH-CH-一С_OH and CH3-CH-CH,--C-H oct-1-yne octanenitrile butanoic acid 3-hydroxybutanal
What H-NMR information would you use to distinguish between the following pairs of compounds? 2. and...
What H-NMR information would you use to distinguish between the following pairs of compounds? 2. and and b а and Он н H Но and c) d)
3. How many 'H NMR signals would appear in the 1H NMR spectrum of each compounds?...
3. How many 'H NMR signals would appear in the 1H NMR spectrum of each compounds? CHE CH2CH3 CH3 CH3 cs I CH₂ I type of its CH3 IMMR signed Match each of the following 1 H NMR absorptions to the compounds below, each of which has a one- signal spectrum: 6 0.04, 0.90, 1.42, 2.25, 7.3ppm CH3 нес (H3C),Si— Si(CH3)2 H3C1 CHE C(CH3) CHE
3. How would you differentiate between the following pairs of molecules using 'H and C NMR?...
3. How would you differentiate between the following pairs of molecules using 'H and C NMR? a) OI b) H3C CH3 он Vs CH3 CH3 VS Br Br
All protons in the same magnetic environment are referred to as an equivalent set of protons....
All protons in the same magnetic environment are referred to as an equivalent set of protons. Each equivalent set produces a signal in the 1H NMR spectrum. Label each equivalent set of protons (a, b, etc.) in the compounds below. Circle the set that would appear most downfield in the 1H NMR of each compound. CH3 CH-C-H CH3 B. Cherboho com | CHyễCH-CH-ZCH D. CH3 CH3-CH-CH-CH: CH3 E. CH:CH-CH2 CC
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers...
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers and meso compounds. II) Assign the absolute configuration of chiral carbons in each molecule OCH3 HO+Br HS+CN H2N-CH3 HOSH Он HO+CH3 н OCH3 Сн, ососна Br +D HOCH HC-BrHN+Br CH 8. For the following compounds, assign the absolute configuration for those with chiral carbons and identify those that are NOT enantiomers HO C-C-OHY -CCIN 13CH3 HAN CH3 CH3 осі H-CH3 H2N+CH H O+COOH...
'HNMR - Problem Set-3 How would you distinguish between the compounds in each of the following pairs by 'H NMR? a. CH CH2CH2OCH; and CH3CH2OCH2CH3 b. BrCH CH CH Br and BrCH2CH2CH NO2 CH3 CH3 c. CH:CH-CHCH; and CH3 CH CH CH3 CH CH d. CH3-C-C-OCH; CH OCH and CH3-C-CH; OCH e. H3C CH; -C-CH3 CH; and -CHỤCCH CH 'HNMR-Problem Set-3 (Page 1 of 2) Name Write the structural formula for each of the following compounds from the 'H NMR...
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2. Explain how you would use 'HNMR and IR to distinguish between each of the following pairs: In other words, what difference(s) would you expect in (a) the IR spectra of the two compounds and (b) what difference(s) would you expect in the NMR spectra of the two compounds. (15 points). DO NOT INCLUDE INFO THAT IS COMMON FOR BOTH (a) A IR for B IR for A NMR for A NMR for B
2. Explain how you would...
DMS ROOR use 'HNMR and IR to distinguish between 2. Explain how you would use what difference(s) would you expect in (a) the IR uish between each of the and (b) what difference() would you expect in the NMR oints). DO NOT INCLUDE INFO THAT IS following pairs : In other words, what difference(s) Spectra of the two compounds and (0) what differen spectra of the two compounds. (15 points). DO NOT COMMON FOR BOTH OSCH IR for A IR...
How would you NMR (^H or 13C) spectroscopy to distinguish between the following pairs of compounds?
2. Describe the infrared absorption frequencies that
would allow you to distinguish between the following pairs of
compounds. (10 points)
2. Describe the infrared absorption frequencies that would allow you to distinguish between the following pairs of compounds. (10 POINTS) (a) 2,3-dimethylbut-2-ene and 2,3-dimethylbut--ene (b) cyclohexa-1,3-diene and cyclohexa-1,4-diene pentanal pentan-2-one butanamide pentan-3-one (e) CH3(CH2)5-С-СーH and CH3(CH2)6_C_N (f) CH,CH-CH-一С_OH and CH3-CH-CH,--C-H oct-1-yne octanenitrile butanoic acid 3-hydroxybutanal
What H-NMR information would you use to distinguish between the following pairs of compounds? 2. and and b а and Он н H Но and c) d)
3. How many 'H NMR signals would appear in the 1H NMR spectrum of each compounds? CHE CH2CH3 CH3 CH3 cs I CH₂ I type of its CH3 IMMR signed Match each of the following 1 H NMR absorptions to the compounds below, each of which has a one- signal spectrum: 6 0.04, 0.90, 1.42, 2.25, 7.3ppm CH3 нес (H3C),Si— Si(CH3)2 H3C1 CHE C(CH3) CHE
3. How would you differentiate between the following pairs of molecules using 'H and C NMR? a) OI b) H3C CH3 он Vs CH3 CH3 VS Br Br
All protons in the same magnetic environment are referred to as an equivalent set of protons. Each equivalent set produces a signal in the 1H NMR spectrum. Label each equivalent set of protons (a, b, etc.) in the compounds below. Circle the set that would appear most downfield in the 1H NMR of each compound. CH3 CH-C-H CH3 B. Cherboho com | CHyễCH-CH-ZCH D. CH3 CH3-CH-CH-CH: CH3 E. CH:CH-CH2 CC
H 9. For each molecule: 1) Identify all possible enantiomers and distinguish those that are enantiomers, diastereomers and meso compounds. II) Assign the absolute configuration of chiral carbons in each molecule OCH3 HO+Br HS+CN H2N-CH3 HOSH Он HO+CH3 н OCH3 Сн, ососна Br +D HOCH HC-BrHN+Br CH 8. For the following compounds, assign the absolute configuration for those with chiral carbons and identify those that are NOT enantiomers HO C-C-OHY -CCIN 13CH3 HAN CH3 CH3 осі H-CH3 H2N+CH H O+COOH...
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