Homework Answers
Since the secondary amines (R2NH) have only one N–H bond, they exhibit a single weak band in the range from 3350-3310 cm-1 region. Therefore, the correct answer is an amine.
Note: Benzene ring and carbonyl group could be discarded easily because they do not exhibit the band at 3350-3310 cm-1 region.
However, in the case of the alkyne, following peaks are generally observed
- –C≡C– stretch from 2260-2100 cm-1
- –C≡C–H: C–H stretch from 3330-3270 cm-1 (strong and sharp peak)
But, in the given spectra, the peak at 2260-2100 cm-1 is missing and also, the peak at around 3350-3310 cm-1 is weak. This clearly indicates that the correct option is an amine.
Add Answer to:
Which of the following structures is consistent with the IR spectra shown below % Transmittance 3500...
im 27 Which of the following structures is consistent with the IR spectra shown below? Thiny...
im 27 Which of the following structures is consistent with the IR spectra shown below? Thiny 8 Transmittance 8 8 2900 1900 100 Pear Copyright © 2020 Pearson Education Inc. All rights reserved. Item 27 3500 3000 2500 2000 0 0 0 0 Submit Request Answer
Label IR spectra %Transmittance 4000 Methyl 3500 Salicylate 3191.67 3000 3154.07 3069.46 3025.59 2953.52 2500 Wavenumbers...
Label IR spectra
%Transmittance 4000 Methyl 3500 Salicylate 3191.67 3000 3154.07 3069.46 3025.59 2953.52 2500 Wavenumbers (cm-1) 2000 1675.04 1615 50 1577.90 1500 1487.02 1440.02 1327.21 1000 121441
Please label all important peaks on the IR Spectra. % Transmittance 4000 3500 3000 1500 1000...
Please label all important peaks on the IR Spectra.
% Transmittance 4000 3500 3000 1500 1000 2500 2000 Wavenumbers (cm-1) Date: Thu Nov 07 13:57:45 2019 (GMT-05:0 Thu Nov 07 13:54:54 2019 (GMT-05:00) Scans: 32
Identify this compound (label all major functional groups on IR spectra). SAMPLE 100- % TRANSMITTANCE 4000...
Identify this compound (label all major
functional groups on IR spectra).
SAMPLE 100- % TRANSMITTANCE 4000 1000 3500 3000 2000 1500 2500 WAVENUMBERS 600.1
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) hav...
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) having the molecular formula C4H,02. Part 1 out of 2 Compound A: 1H NMR of A 2 H 2 H 1H 7 6 2 0 ppm 100 IR [A] 50 0 4000 3500 3000 2500 2000 1500 1000 500
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) having the molecular...
Identify the possible compound consistent with the following FT-IR spectrum. 100 80 60 Transmittance (6) 40...
Identify the possible compound consistent with the following FT-IR spectrum.
100 80 60 Transmittance (6) 40 20 0 4000 3500 3000 1500 1000 500 2500 2000 Wave number,cm- Benceno benzaldehído etilbenceno O acetofenona O acetaldehído
IR Is there an OH? Wavenumber? Is there a carbonyl group? If so what type (acid....
IR
Is there an OH? Wavenumber?
Is there a carbonyl group? If so what type (acid. ester, amide,
aldehyde, ketone etc.)? Wave number?
Other important peaks (terminal alkyne, cyano group, aromatic,
alkene, nitro group, amine etc.) and where are they?
27 100 80 90 110 70 40 50 30 80 MZ IR spectrum 70- 80- -1858 50- Transmittance 40- 30- -1375 20- 10- 3500 3000 2500 2000 Wavenumber (cm-1) 1500 1000 dtv C G Search or type URL + #...
Need help reading the following IR spectra Need help identifying peaks and possible structures. Thank You!!!!...
Need help reading the following IR spectra
Need help identifying peaks and possible structures. Thank
You!!!!
3500 2500 3000 2000 Wave number (cm 1500 1000
Determine the class of the compound, which contains only carbon and hydrogen, and exhibits the infrared...
Determine the class of the compound, which contains only carbon and hydrogen, and exhibits the infrared spectrum below. Possible compound classes are alkane, alkene, alkyne, aromatic, alcohol, amine, aldehyde ketone, carboxylic acid, acid chloride, ester, amide The compound is an) (Use your cursor to read the IR frequency scale.) Flash Installation and Troubleshooting Infrared spectra provided courtesy of Thermo Electron Corp 110% Transmittance Wavenumber. 0% 4000 3500 3000 2500 2000 Wavenumber(cm) 1500 1000 Submit Answer Retry Entire Group 1 more...
Identify the peaks that identify the functional groups in the IR spectrum Unknown 4 C2H60 TRANSMITTANCE...
Identify the peaks that identify the functional groups
in the IR spectrum
Unknown 4 C2H60 TRANSMITTANCE 1001- 0 900- 0 800- 0.700- 0.600- 0.500- 0.400- 0.300- 0200- 0.100- 0.000- 4000 IR Unknown 3500 3000 2500 2000 1000 1500 Load IR spectrum Load proton NMR Show structure Spectra are displayed using JSpecView Website maintained by Jennifer Muzyka Contact me at jennifer muzyka@centre edu. Unknown 5 C3H5NO TRANSMITTANCE 1.001 - 0.900- 0800- 0.700- 0.600- 0.500- 0.400- 0.300- 0 200- 0.100- 0 000...
im 27 Which of the following structures is consistent with the IR spectra shown below? Thiny 8 Transmittance 8 8 2900 1900 100 Pear Copyright © 2020 Pearson Education Inc. All rights reserved. Item 27 3500 3000 2500 2000 0 0 0 0 Submit Request Answer
Label IR spectra
%Transmittance 4000 Methyl 3500 Salicylate 3191.67 3000 3154.07 3069.46 3025.59 2953.52 2500 Wavenumbers (cm-1) 2000 1675.04 1615 50 1577.90 1500 1487.02 1440.02 1327.21 1000 121441
Please label all important peaks on the IR Spectra.
% Transmittance 4000 3500 3000 1500 1000 2500 2000 Wavenumbers (cm-1) Date: Thu Nov 07 13:57:45 2019 (GMT-05:0 Thu Nov 07 13:54:54 2019 (GMT-05:00) Scans: 32
Identify this compound (label all major
functional groups on IR spectra).
SAMPLE 100- % TRANSMITTANCE 4000 1000 3500 3000 2000 1500 2500 WAVENUMBERS 600.1
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) having the molecular formula C4H,02. Part 1 out of 2 Compound A: 1H NMR of A 2 H 2 H 1H 7 6 2 0 ppm 100 IR [A] 50 0 4000 3500 3000 2500 2000 1500 1000 500
Use the 'H NMR and IR spectra given below to identify the structures of two isomers (A and B) having the molecular...
Identify the possible compound consistent with the following FT-IR spectrum.
100 80 60 Transmittance (6) 40 20 0 4000 3500 3000 1500 1000 500 2500 2000 Wave number,cm- Benceno benzaldehído etilbenceno O acetofenona O acetaldehído
IR
Is there an OH? Wavenumber?
Is there a carbonyl group? If so what type (acid. ester, amide,
aldehyde, ketone etc.)? Wave number?
Other important peaks (terminal alkyne, cyano group, aromatic,
alkene, nitro group, amine etc.) and where are they?
27 100 80 90 110 70 40 50 30 80 MZ IR spectrum 70- 80- -1858 50- Transmittance 40- 30- -1375 20- 10- 3500 3000 2500 2000 Wavenumber (cm-1) 1500 1000 dtv C G Search or type URL + #...
Need help reading the following IR spectra
Need help identifying peaks and possible structures. Thank
You!!!!
3500 2500 3000 2000 Wave number (cm 1500 1000
Determine the class of the compound, which contains only carbon and hydrogen, and exhibits the infrared spectrum below. Possible compound classes are alkane, alkene, alkyne, aromatic, alcohol, amine, aldehyde ketone, carboxylic acid, acid chloride, ester, amide The compound is an) (Use your cursor to read the IR frequency scale.) Flash Installation and Troubleshooting Infrared spectra provided courtesy of Thermo Electron Corp 110% Transmittance Wavenumber. 0% 4000 3500 3000 2500 2000 Wavenumber(cm) 1500 1000 Submit Answer Retry Entire Group 1 more...
Identify the peaks that identify the functional groups
in the IR spectrum
Unknown 4 C2H60 TRANSMITTANCE 1001- 0 900- 0 800- 0.700- 0.600- 0.500- 0.400- 0.300- 0200- 0.100- 0.000- 4000 IR Unknown 3500 3000 2500 2000 1000 1500 Load IR spectrum Load proton NMR Show structure Spectra are displayed using JSpecView Website maintained by Jennifer Muzyka Contact me at jennifer muzyka@centre edu. Unknown 5 C3H5NO TRANSMITTANCE 1.001 - 0.900- 0800- 0.700- 0.600- 0.500- 0.400- 0.300- 0 200- 0.100- 0 000...
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