- Provide formula, HDI value, and a complete, chemically correct structure for each problem.
- Assign signals in the 1H and 13C spectra to specific atoms, identify structural units and/or functional groups.
- Submit a separate answer sheet as a jpeg, pdf, or word file for
each problem (link for file attachment is provided at the bottom of
each problem).
Homework Answers
In 1H spectrum there are two peaks within 3-4 ppm implies presence of ether group.
Degree of unsaturation 
So orobablw structure is 
Ha correspond to triplet at 0.97-1.00 ppm
Hb correspond to multiplet at 1.55-1.64 ppm
Ca & Cb correspond to 10.62 & 22.93 ppm respectively.
Hc correspond to triplet at 3.37-3.40 ppm
Hd correspond to doublet at 4.01-4.03 ppm
Cc & Cd correspond to 70.02 & 73.55 ppm, they can't be distinguished without correlation spectra
He correspond to multiplet at 5.81-5.87 ppm
Hf correspond to multiplet 5.12-5.16 ppm
Ce & Cf correspond to 133.78 & 166.92 ppm respectively.
Add Answer to:
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in...
Write down problem number. Provide formula, HDI value, and a complete, chemically correct structure for each...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
Provide formula, HDI value, and a complete, chemically correct structure for each problem. Assign signals in...
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Submit a separate answer sheet as a jpeg, pdf, or word file for
each problem (link for file attachment is provided at the bottom of
each problem).
Chemical Formula CH,Br Predicted 1H NMR Spectrum នននន -723 73 720 7.18 7.15 6. -6.5 3.2 .0 a 1. 4 72 70 ....
Provide formula, HDI value, and a complete, chemically correct structure for each problem. Assign signals in...
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Submit a separate answer sheet as a jpeg, pdf, or word file for
each problem (link for file attachment is provided at the bottom of
each problem).
Chemical Formula: CH12 自学西宏安互动与导言 75 74 73 72 71 11 (epm) 7.0 6.5 5.0 5.5 5.0 5.0 45 1 (ppm) 40 4 .0...
Write down problem number. Provide formula, HDI value, and a complete, chemically correct structure for each...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Submit a separate answer sheet as a jpeg, pdf, or word file for
each problem (link for file attachment is provided at the bottom of
each problem).
CH, NO 2.20 3.68 2.66 - 3.80 3.69 3.66 2.67 2.64 58.30
PLEASE HELP 1. Provide formula, HDI value, and a complete, chemically correct structure for each problem....
PLEASE HELP
1. Provide formula, HDI value, and a complete, chemically
correct structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Submit a separate answer sheet as a jpeg, pdf, or word file for
each problem (link for file attachment is provided at the bottom of
each problem).
Chemical formula CsHN 19 N N N N N ส ส พ ฟ ฟ สี สี 219 2.18 2.24 222...
The above is just one question. please answer the following according to the above. 1. Assign...
The above is just one question. please answer the following
according to the above.
1. Assign signals of 13C and 1H spectra as well as find the
structural unit and functional group.
2. Give the structure
sample answer - as follows
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar carbons,...
Write down problem number. Provide formula, HDI value, and a complete, chemically correct structure for each...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
Write down problem number. Provide formula, HDI value, and a complete, chemically correct structure for each...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
Write down problem number. Provide formula, HDI value, and a complete, chemically correct structure for each...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
Write down problem number. Provide formula, HDI value, and a complete, chemically correct structure for each...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Submit a separate answer sheet as a jpeg, pdf, or word file for
each problem (link for file attachment is provided at the bottom of
each problem).
Chemical Formula CH,Br Predicted 1H NMR Spectrum នននន -723 73 720 7.18 7.15 6. -6.5 3.2 .0 a 1. 4 72 70 ....
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Submit a separate answer sheet as a jpeg, pdf, or word file for
each problem (link for file attachment is provided at the bottom of
each problem).
Chemical Formula: CH12 自学西宏安互动与导言 75 74 73 72 71 11 (epm) 7.0 6.5 5.0 5.5 5.0 5.0 45 1 (ppm) 40 4 .0...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Submit a separate answer sheet as a jpeg, pdf, or word file for
each problem (link for file attachment is provided at the bottom of
each problem).
CH, NO 2.20 3.68 2.66 - 3.80 3.69 3.66 2.67 2.64 58.30
PLEASE HELP
1. Provide formula, HDI value, and a complete, chemically
correct structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Submit a separate answer sheet as a jpeg, pdf, or word file for
each problem (link for file attachment is provided at the bottom of
each problem).
Chemical formula CsHN 19 N N N N N ส ส พ ฟ ฟ สี สี 219 2.18 2.24 222...
The above is just one question. please answer the following
according to the above.
1. Assign signals of 13C and 1H spectra as well as find the
structural unit and functional group.
2. Give the structure
sample answer - as follows
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar carbons,...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
Write down problem number.
Provide formula, HDI value, and a complete, chemically correct
structure for each problem.
Assign signals in the 1H and 13C spectra to specific atoms,
identify structural units and/or functional groups.
Example:
Problem # 3
Formula: C8H8O2
HDI: 5
1H NMR: p-substituted Ar at 7.27-7.97 ppm, benzylic CH3 group at
2.42 ppm, COOH proton at 12.9 ppm
13C NMR: carbonyl C at 167.8 ppm (ester or acid), benzylic CH3
at 21.40 ppm, 4 remaining signals are Ar...
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