Homework Answers
The structure that best fits the given IR and EI-MS data can be drawn as follows.
IR spectrum:
(i) A signal at ~ 3400cm-1 corresponds to N-H stretch.
(ii) A signal at ~ 1600 cm-1 corresponds to aromatic C=C stretch.
(iii) A signal at ~ 1500 cm-1 corresponds to =C-N stretch.
(iv) A signal at ~ 1050 cm-1 corresponds to a C-O stretch of ether.
Mass spectrum:
(i) For the molecular ion (M+) peak, m/z = 165
(ii) The methyl group fragmentation results in m/z = 150 (i.e. 165-15)
(iii) The OMe fragmentation results in m/z = 134 (i.e. 165 - 31)
(iv) The removal of ethylene from the fragment (m/z = 134) results m/z = 106 (i.e. 134-28)
(v) The removal of NH=CH2 from the fragment (m/z = 106) results m/z = 77 (106-29)
Add Answer to:
Help!!!
3. (34 points total) Below are EI-MS and IR data for an unknown compound: 134...
Suggest a composition for the halogen compound whose mass spectrum is shown below and assign the labeled peaks. 127 100 173 160 158 162 25 48 TITTHTT 160 170 91 208 79 35 160 173 30 40 50 60 70 80 90...
Suggest a composition for the halogen compound whose mass
spectrum is shown below and assign the labeled peaks.
127 100 173 160 158 162 25 48 TITTHTT 160 170 91 208 79 35 160 173 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 m/z
127 100 173 160 158 162 25 48 TITTHTT 160 170 91 208 79 35 160 173 30 40 50 60 70 80 90 100...
8. (10 points) The following spectra correspond to compounds AE listed below con pound to its...
8. (10 points) The following spectra correspond to compounds AE listed below con pound to its corresponding spestre Label very simal on the spectrum (as Co . ctc.). Spectrum CDCI, 190 160 170 160 150 140 130 120 110 100 80 80 Spectrum 2 70 80 50 40 30 20 10 O le CDCI, 190 180 170 180 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 O de CDCI, 190 180 170 180...
3. Find the structure of a compound given the MS, IR, and NMR data below. When...
3. Find the structure of a compound given the MS, IR, and NMR data below. When you have the solution, use it to determine the correct multiplicity of the signal at 5.1 ppm and explain the coupling pattern. A correct answer with no explanation will receive no credit. MASS 951 FL 100 128 1107 677 r69 r45 50 557 811 130 120 100 110 90 80 70 60 50 mt IR 100 50 2000 Wavenumber (cm-1) 1000 3000 4000 'H...
Determine the structure of this unknown compound with the formula C8H10. Unknown Compound 4 - C8H10...
Determine the structure of this unknown compound with the
formula C8H10.
Unknown Compound 4 - C8H10 $1.5 10 9 8 7 3 2 1 PPM (8) 130 Solvent BAS . 210 200 100 100 170 180 150 140 130 120 110 1000000 70 60 50 40 30 20 10 ppm INFRARED SPECTRUM Transmitance esps.it Esps. It "Cavere) 4000 3000 2000 Wavenumber (cm-1) NIST Chemistry WebBook (https://webbook. nist.gov/chemistry) 1000
An unknown, non-branched saturated hydrocarbon has the mass spectrum below. What is the structure of the unknown hy...
An unknown, non-branched saturated hydrocarbon has the mass spectrum below. What is the structure of the unknown hydrocarbon? 100. 57 71 85 50 29 113 127 141155 189 183 197 211 225 241 254 20 80 100 120 140 160 180 200 220 240 40 60 An unknown compound with formula CaHioO, gave a negative test with 2,4- dinitrophenylhy drazine; however, the unknown tested positive with the Jones reagent. When added to a solution of bromine dissolved in methylene, the...
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
Nonparametrics Testing baseline 180 136 210 170 140 160 150 110 120 125 230 124 110 164 170 106 1...
Nonparametrics Testing baseline 180 136 210 170 140 160 150 110 120 125 230 124 110 164 170 106 150 160 128 190 230 142 150 130 152 100 170 100 168 150 152 160 180 final med 156 Nifedipine 126 Nifedipine 230 Nifedipine 150 Nifedipine 120 Nifedipine 164 Nifedipine 140 Nifedipine 112 Nifedipine 120 Nifedipine 120 Nifedipine 170 Nifedipine 134 Nifedipine 116 Nifedipine 144 Nifedipine 170 Nifedipine 124 Nifedipine 136 Nifedipine 140 Nifedipine 110 Propranolol 140 Propranolol 150 Propranolol...
What compound would these graphs describe? I suspect the MS says Toluene, the NMR says its...
What compound would these graphs describe?
I suspect the MS says Toluene, the NMR says its para substitued,
and the IR is an aldehyde. Would this be 4-Methylbenzaldehyde?
170 65 89 30 25 50 86 27 30 74 70 10 20 40 50 60 80 90 100 110 120 130 140 150 160 170 180 70 miz Values and Intensities: 15 Tr | 20 Trị 25 Tr | 26 7 27 16[ 28 11 32 Tr 36 1| 37 13...
Draw a structure that is consistent with the MS, IR, and NMR spectra in Figures 1-3....
Draw a structure that is consistent with the MS, IR, and NMR spectra in Figures 1-3. abundance اسلام سال M 73 10' 20' 30' 40'50' 60' 70' 80' 90 '100' 110' 120 130 140 150 160 m/z 25 3.5 4 4.5 wavelength (mm) 5 5.5 6 7 8 9 10 11 12 13 14 15 16 ECZO-EESZOW 4000 3500 3000 2500 1400 1200 1000 800 600 2000 1800 1600 wavenumber (cm) wavenumber (cm" 100 80 200 180 160 140 120...
The **C NMR and mass spectrum of an unknown compound is shown below. The unknown gave...
The **C NMR and mass spectrum of an unknown compound is shown below. The unknown gave an immediate precipitate when treated with 2,4- dinitrophenylhydrazine. When treated with the iodoform reagent, the unknown gara yellow precipitate. a. What is the structure of the unknown? What is the structure of the yellow precipitate that resulted when the compo was treated with the iodoform reagent? ita wi o mo 40 50 60 ther than ito 70 80 90 100 110 120 130 140...
Suggest a composition for the halogen compound whose mass
spectrum is shown below and assign the labeled peaks.
127 100 173 160 158 162 25 48 TITTHTT 160 170 91 208 79 35 160 173 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 m/z
127 100 173 160 158 162 25 48 TITTHTT 160 170 91 208 79 35 160 173 30 40 50 60 70 80 90 100...
8. (10 points) The following spectra correspond to compounds AE listed below con pound to its corresponding spestre Label very simal on the spectrum (as Co . ctc.). Spectrum CDCI, 190 160 170 160 150 140 130 120 110 100 80 80 Spectrum 2 70 80 50 40 30 20 10 O le CDCI, 190 180 170 180 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 O de CDCI, 190 180 170 180...
3. Find the structure of a compound given the MS, IR, and NMR data below. When you have the solution, use it to determine the correct multiplicity of the signal at 5.1 ppm and explain the coupling pattern. A correct answer with no explanation will receive no credit. MASS 951 FL 100 128 1107 677 r69 r45 50 557 811 130 120 100 110 90 80 70 60 50 mt IR 100 50 2000 Wavenumber (cm-1) 1000 3000 4000 'H...
Determine the structure of this unknown compound with the
formula C8H10.
Unknown Compound 4 - C8H10 $1.5 10 9 8 7 3 2 1 PPM (8) 130 Solvent BAS . 210 200 100 100 170 180 150 140 130 120 110 1000000 70 60 50 40 30 20 10 ppm INFRARED SPECTRUM Transmitance esps.it Esps. It "Cavere) 4000 3000 2000 Wavenumber (cm-1) NIST Chemistry WebBook (https://webbook. nist.gov/chemistry) 1000
An unknown, non-branched saturated hydrocarbon has the mass spectrum below. What is the structure of the unknown hydrocarbon? 100. 57 71 85 50 29 113 127 141155 189 183 197 211 225 241 254 20 80 100 120 140 160 180 200 220 240 40 60 An unknown compound with formula CaHioO, gave a negative test with 2,4- dinitrophenylhy drazine; however, the unknown tested positive with the Jones reagent. When added to a solution of bromine dissolved in methylene, the...
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
Nonparametrics Testing baseline 180 136 210 170 140 160 150 110 120 125 230 124 110 164 170 106 150 160 128 190 230 142 150 130 152 100 170 100 168 150 152 160 180 final med 156 Nifedipine 126 Nifedipine 230 Nifedipine 150 Nifedipine 120 Nifedipine 164 Nifedipine 140 Nifedipine 112 Nifedipine 120 Nifedipine 120 Nifedipine 170 Nifedipine 134 Nifedipine 116 Nifedipine 144 Nifedipine 170 Nifedipine 124 Nifedipine 136 Nifedipine 140 Nifedipine 110 Propranolol 140 Propranolol 150 Propranolol...
What compound would these graphs describe?
I suspect the MS says Toluene, the NMR says its para substitued,
and the IR is an aldehyde. Would this be 4-Methylbenzaldehyde?
170 65 89 30 25 50 86 27 30 74 70 10 20 40 50 60 80 90 100 110 120 130 140 150 160 170 180 70 miz Values and Intensities: 15 Tr | 20 Trị 25 Tr | 26 7 27 16[ 28 11 32 Tr 36 1| 37 13...
Draw a structure that is consistent with the MS, IR, and NMR spectra in Figures 1-3. abundance اسلام سال M 73 10' 20' 30' 40'50' 60' 70' 80' 90 '100' 110' 120 130 140 150 160 m/z 25 3.5 4 4.5 wavelength (mm) 5 5.5 6 7 8 9 10 11 12 13 14 15 16 ECZO-EESZOW 4000 3500 3000 2500 1400 1200 1000 800 600 2000 1800 1600 wavenumber (cm) wavenumber (cm" 100 80 200 180 160 140 120...
The **C NMR and mass spectrum of an unknown compound is shown below. The unknown gave an immediate precipitate when treated with 2,4- dinitrophenylhydrazine. When treated with the iodoform reagent, the unknown gara yellow precipitate. a. What is the structure of the unknown? What is the structure of the yellow precipitate that resulted when the compo was treated with the iodoform reagent? ita wi o mo 40 50 60 ther than ito 70 80 90 100 110 120 130 140...
Most questions answered within 3 hours.
-
Oxidative phosphorylation is achieved through chemiosmotic
coupling, which turns chemical energy into osmotic potential energy
that...
asked 30 minutes ago -
Hollywood Shoes would like to maintain their cash account at a
minimum level of $64,000, but...
asked 29 minutes ago -
Proteins CtrA-P, DnaA, and GcrA behave similarly to what
molecule in the Eukaryotic Cell Cycle?
asked 33 minutes ago -
TRUE OR FALSE
In case of a competitive tender procedure, in the request for
quotation, the...
asked 41 minutes ago -
I am a little behind please provide some explanation, will
provide thumbs up.
This question considers...
asked 44 minutes ago -
Let say the utility function as U(X,Y) = lnX + Y. Show that the
marginal rate...
asked 49 minutes ago -
A current of I=8.0A is flowing in a typical extension cord of
length L=3.00m. The cord...
asked 52 minutes ago -
1. When balancing the equation H2SO4 (aq) + NaOH (aq) →
Na2SO4(aq) + H2O(aq), would you...
asked 1 hour ago -
Provide a definition of “classification hierarchy” and
illustrate your definition with an example of how and...
asked 1 hour ago -
1. Describe the four main green solvents. Provide one example of
the use of each solvent....
asked 1 hour ago -
International ethics focus on:
1) exploitation of labor
2)corruption
3) environmental impact
4) none of the...
asked 1 hour ago -
Costing Models You work for XYZ trucking and your boss has asked
you to figure out...
asked 1 hour ago