![2. [5 marks] Use the mass spectrum (EI-MS) and the additional H NMR data to deduce the structure of the compound of the form](http://img.homeworklib.com/questions/35bd92e0-d378-11eb-9e59-d3a0e8b6184a.png?x-oss-process=image/resize,w_560)
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2. [5 marks] Use the mass spectrum (EI-MS) and the...
Use the mass spectrum and either the NMR spectrum or the IR spectrum to deduce the...
Use the mass spectrum and either the NMR spectrum or the IR
spectrum to deduce the structure of the following compound
(c) C8HO3H NMR, 300 MHz, 6.1 ppm (singlet, 2H), 6.9 ppm (doublet, 1H), and 7.3 ppm (singlet, 1H), 7.4 ppm (doublet, 1H), 9.8 ppm (singlet, 1H); significant IR absorbances at 1687, 1602, 1449, 1264, 1038, 929, and 815 cm1. 100 149 (150) 80 60 40 121 63 20 65 91 0 15 20 25 30 35 40 45 50...
Deduce the ester compound structure with M/Z=136 on this mass spectrum; significant peaks at 51, 77,...
Deduce the ester compound structure with M/Z=136 on this mass
spectrum; significant peaks at 51, 77, 105, 136.
Relative Abundance M(136) 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 mz
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
Question 5: (11 marks) Compound B, which contains only carbon, hydrogen and oxygen atoms, shows the...
Question 5: (11 marks) Compound B, which contains only carbon, hydrogen and oxygen atoms, shows the mass, IR, H NMR and C NMR spectra given below a) With brief explanation, deduce the structure of Compound B b) Explain the mass spectroscopic signals at m/z 122, 105 and 77. Mass Spectrum 122 M° 150 70 90 100 110 120 130 140 150 150 170 180 100 200 mve Infrared Spectrum Wave Number,cm- 4000 3000 250 2000150 13 1 11001000900 80 Wavelengihn,...
CHeck y Work Suppose that you are responsible for making amangements for a business convention and...
CHeck y Work Suppose that you are responsible for making amangements for a business convention and that you have been charged with choosing a city for the convention that has the least expensive rooms, You have narrowed your choices to Atlanta and Houston. The table below contains samples of prices for rooms in Atlanta and Houston. Because considerable historical data on the prices of rooms in both cities are available, the population standard deviations for the prices can be assumed...
Find the final chemical structure compound. Use rule of 13 to find the m/z ration for...
Find the final chemical structure compound. Use rule of 13 to
find the m/z ration for Mass Spectrum and for the chemical formula.
HNMR: Show the integration, splitting patterns, and explain the
position of H atoms. Use the Appendix 8, and by calculation of CNMR
chemical shifts, to support the structural assigment.
162 MASS 164 100 63 981 1261128 「 s 50 73 mi 50 60 70 80 90 10o 110 120 130 140 150 160 m/z IR 100 50...
1. Assign structures for the following molecules given the IR and EI-MS data below: (a) IR...
1. Assign structures for the following molecules given the IR and EI-MS data below: (a) IR shows medium intensity peak at 1650 cm and C-H out-of-plane bending at 880 cm. 56 Relative Abundance M(84) uli 35 40 45 dll 25 30 LL 15 20 . Inlll 50 55 miz 60 65 70 75 80 85 90 (b) IR has a broad peak at 3370 cm and a strong peak at 1159 cm!. The M ion is absent. Relative Abundance (percent)...
Determine how many CH2 and CH3, CH and C (no hydrogen) groups are in the molecule....
Determine how many CH2 and CH3, CH and C (no hydrogen) groups
are in the molecule. and how many proton groups are there. Does the
spectra agree with this?
Cholesterol in CDC13 Proton spectrum AAA M. T T 40 0.5 5 5,0 4.5 3.5 3.0 25 2.0 1,5 14 0 f1 (ppm) Cholesterol in CDC13 Carbon Spectrum ..demel. 135 130 80 10 50 145 140 125 120 115 110 105 100 95 90 85 70 75 f1 (ppm) 65 60...
please help explain the gc fragmentation for this? 132.0 3500 104.0 3000 MW-140.16 2500 2000 1500...
please help explain the gc fragmentation for this?
132.0 3500 104.0 3000 MW-140.16 2500 2000 1500 78.0 1000 51.0 500 63.0 83.8 88.9 n/z--> 40 45 50 55 60 70 80 85 90 95 100 105 110 115 120 130 135 140 125 75 65
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 ....
Use the mass spectrum and either the NMR spectrum or the IR
spectrum to deduce the structure of the following compound
(c) C8HO3H NMR, 300 MHz, 6.1 ppm (singlet, 2H), 6.9 ppm (doublet, 1H), and 7.3 ppm (singlet, 1H), 7.4 ppm (doublet, 1H), 9.8 ppm (singlet, 1H); significant IR absorbances at 1687, 1602, 1449, 1264, 1038, 929, and 815 cm1. 100 149 (150) 80 60 40 121 63 20 65 91 0 15 20 25 30 35 40 45 50...
Deduce the ester compound structure with M/Z=136 on this mass
spectrum; significant peaks at 51, 77, 105, 136.
Relative Abundance M(136) 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 mz
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
Question 5: (11 marks) Compound B, which contains only carbon, hydrogen and oxygen atoms, shows the mass, IR, H NMR and C NMR spectra given below a) With brief explanation, deduce the structure of Compound B b) Explain the mass spectroscopic signals at m/z 122, 105 and 77. Mass Spectrum 122 M° 150 70 90 100 110 120 130 140 150 150 170 180 100 200 mve Infrared Spectrum Wave Number,cm- 4000 3000 250 2000150 13 1 11001000900 80 Wavelengihn,...
CHeck y Work Suppose that you are responsible for making amangements for a business convention and that you have been charged with choosing a city for the convention that has the least expensive rooms, You have narrowed your choices to Atlanta and Houston. The table below contains samples of prices for rooms in Atlanta and Houston. Because considerable historical data on the prices of rooms in both cities are available, the population standard deviations for the prices can be assumed...
Find the final chemical structure compound. Use rule of 13 to
find the m/z ration for Mass Spectrum and for the chemical formula.
HNMR: Show the integration, splitting patterns, and explain the
position of H atoms. Use the Appendix 8, and by calculation of CNMR
chemical shifts, to support the structural assigment.
162 MASS 164 100 63 981 1261128 「 s 50 73 mi 50 60 70 80 90 10o 110 120 130 140 150 160 m/z IR 100 50...
1. Assign structures for the following molecules given the IR and EI-MS data below: (a) IR shows medium intensity peak at 1650 cm and C-H out-of-plane bending at 880 cm. 56 Relative Abundance M(84) uli 35 40 45 dll 25 30 LL 15 20 . Inlll 50 55 miz 60 65 70 75 80 85 90 (b) IR has a broad peak at 3370 cm and a strong peak at 1159 cm!. The M ion is absent. Relative Abundance (percent)...
Determine how many CH2 and CH3, CH and C (no hydrogen) groups
are in the molecule. and how many proton groups are there. Does the
spectra agree with this?
Cholesterol in CDC13 Proton spectrum AAA M. T T 40 0.5 5 5,0 4.5 3.5 3.0 25 2.0 1,5 14 0 f1 (ppm) Cholesterol in CDC13 Carbon Spectrum ..demel. 135 130 80 10 50 145 140 125 120 115 110 105 100 95 90 85 70 75 f1 (ppm) 65 60...
please help explain the gc fragmentation for this?
132.0 3500 104.0 3000 MW-140.16 2500 2000 1500 78.0 1000 51.0 500 63.0 83.8 88.9 n/z--> 40 45 50 55 60 70 80 85 90 95 100 105 110 115 120 130 135 140 125 75 65
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 ....
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