Homework Answers
answer = option (E)
reason: (a) the broad peak around 3500-2500 cm-1 corresponds to the carboxylic acid O-H stretch
(b) the carbonyl C=O stretch around 1710 cm-1 corresponds to the Carboxylic Acid C=O Stretch
Therefore, the compound given in the IR spectrum is a carboxylic acid which is given only in option (E)
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Click in the answer box to display choices Choose the compound that matches the IR spectrum...
Assign the peak for both of the IR spectrum below and identify what compound is this...
Assign the peak for both of the IR spectrum below and identify
what compound is this and draw the structure of the compound.
100 90 80 70 W 60 50 % Transmission 40 30 - 923 1677 1285 20 - 702 10 0 4000 3500 3000 2500 2000 1500 1000 Wavenumber (cm) 100 80 m % Transmission 1660 1209 1438 886 757 0 4000 3500 3000 2500 1500 1000 2000 Wavenumber (cm*')
IR spectrum and identify the following functional groups by their IR absorbances on the IR C=O C=...
IR spectrum and identify the following functional groups by
their IR absorbances on the IR
C=O
C=C (aromatic) or C-O
:絲器器尋尋 2500 2000 Wavenumber cm-1 3500 3000 1500 1000 500
:絲器器尋尋 2500 2000 Wavenumber cm-1 3500 3000 1500 1000 500
1. LABEL the relevant signals in the following IR spectrum & CIRCLE which molecule BEST matches...
1. LABEL the relevant signals in the following IR spectrum & CIRCLE which molecule BEST matches the spectrum. (6 pts) 600-85 500-650 m 1. Stud TRANSMITTANCE [%] Carboxylic acidio-11) Daromatic 1-0 1500 1000 4000 500 ZOO NUMBER 3500 3000 2000 WAVENUMBER (cm-1)
IR Worksheet 1. For each spectrum below: 1) Label the major peaks with their approximate frequency....
IR Worksheet 1. For each spectrum below: 1) Label the major peaks with their approximate frequency. 2) Identify the bond vibration and possible functional group associated with each peak. 3) Match the spectra to one of these possible compounds: NH2 TRANSMITTANCE[%] pobo edo "2060 bo zdoo 160 Tobo 560 WAVENUMBER [cm-1] oot 08 TRANSMITTANCE [%] 09 01 02 4000 3500 3000 2500 2000 WAVENUMBER (cm-1] 1500 1000 500 οοο TRANSMITTANCE (6) οο οο οε 4000 3500 3000 1500 1000 2500...
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
The compound from the following list that exhibits the infrared spectrum below is (Use your cursor...
The compound from the following list that exhibits the infrared spectrum below is (Use your cursor to read the IR frequency scale.) CH CH(CH)CH CH,(CH,A-C=C-H HỌ–CH, Flash Installation and Troubleshooting Infrared spectra provided courtesy of Thermo Electron Corp. 110% Transmittance Wavenumber: 4000 3500 3000 2500 2000 Wavenumber (cm) 1500 1000 450 [References] Review Topics] The compound from the following list that exhibits the infrared spectrum below is (Use your cursor to read the IR frequency scale.) сн. H-C=C-C-CH, HOCH, CH...
pls interpret and analyze both IR Spectrum . thanks philip/johnson 105 100 95 90- 85 80 75 70 65 60 55 50- 45- 50...
pls interpret and analyze both IR Spectrum . thanks
philip/johnson 105 100 95 90- 85 80 75 70 65 60 55 50- 45- 500 1000 1500 2000 2500 3500 3000 4000 Wavenumbers (om-1) %Transmittance 100 philipljphnson 95- 85 80 75 70- 65- 60 55 50 4000 3500 1000 500 3000 1500 2500 2000 %Transmittance 90
philip/johnson 105 100 95 90- 85 80 75 70 65 60 55 50- 45- 500 1000 1500 2000 2500 3500 3000 4000 Wavenumbers (om-1) %Transmittance...
1) Identify the functional group (alkane, alkene, ketone, aldehyde, aldehyde, etc) for the compounds providing the...
1) Identify the functional group (alkane, alkene, ketone, aldehyde, aldehyde, etc) for the compounds providing the IR spectra: % Transmittance 4000 3500 3000 1500 1000 500 2500 2000 Wavenumber(cm) % Transmittance 4000 3500 3000 1500 1000 500 2500 2000 Wavenumber(cm) % Transmittance 1000 3500 3000 1500 1000 500 2500 2000 Wavenumber (cm)
HELP B) Interpret IR spectrum of product (shown below) and provide a table listing functional groups...
HELP
B) Interpret IR spectrum of product (shown below) and provide a table listing functional groups and peak intensity. Microns (um) 2.5 3.0 3.5 4.0 6.0 8 10 15 20 Transmittance (%) 1838 cm-19 -V1759 cm-111 TTTTTTTTT 4000 3500 3000 2500 2000 1500 1000 Wavenumber (cm-1) 500
2) Which is the most reasonable structure for a compound with this IR spectrum? Wavelength, (um)...
2) Which is the most reasonable structure for a compound with this IR spectrum? Wavelength, (um) 2.2 2.4 2.6 3 3,5 4 4,5 5 5,5 6 1 8_9 10 11 12 13 14 16 MAN 4600 4000 3500 3000 2500 2000 1500 Wavenumber, (cm) 1000 800 600 (A) (B) ОН CH3(CH2)4-C=C-COCH; CH(CH2)3-C=C-CHCH (C) (D) H-C=C-(CH2)4CCH3 CH3(CH2)4-CH=CH-CH 3) Which structure is consistent with following IR spectrum? * 2.527 3 Wavelength, (um) 3,5 4 4,5 5 5,5 6 6,5 7 8 9...
Assign the peak for both of the IR spectrum below and identify
what compound is this and draw the structure of the compound.
100 90 80 70 W 60 50 % Transmission 40 30 - 923 1677 1285 20 - 702 10 0 4000 3500 3000 2500 2000 1500 1000 Wavenumber (cm) 100 80 m % Transmission 1660 1209 1438 886 757 0 4000 3500 3000 2500 1500 1000 2000 Wavenumber (cm*')
IR spectrum and identify the following functional groups by
their IR absorbances on the IR
C=O
C=C (aromatic) or C-O
:絲器器尋尋 2500 2000 Wavenumber cm-1 3500 3000 1500 1000 500
:絲器器尋尋 2500 2000 Wavenumber cm-1 3500 3000 1500 1000 500
1. LABEL the relevant signals in the following IR spectrum & CIRCLE which molecule BEST matches the spectrum. (6 pts) 600-85 500-650 m 1. Stud TRANSMITTANCE [%] Carboxylic acidio-11) Daromatic 1-0 1500 1000 4000 500 ZOO NUMBER 3500 3000 2000 WAVENUMBER (cm-1)
IR Worksheet 1. For each spectrum below: 1) Label the major peaks with their approximate frequency. 2) Identify the bond vibration and possible functional group associated with each peak. 3) Match the spectra to one of these possible compounds: NH2 TRANSMITTANCE[%] pobo edo "2060 bo zdoo 160 Tobo 560 WAVENUMBER [cm-1] oot 08 TRANSMITTANCE [%] 09 01 02 4000 3500 3000 2500 2000 WAVENUMBER (cm-1] 1500 1000 500 οοο TRANSMITTANCE (6) οο οο οε 4000 3500 3000 1500 1000 2500...
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
The compound from the following list that exhibits the infrared spectrum below is (Use your cursor to read the IR frequency scale.) CH CH(CH)CH CH,(CH,A-C=C-H HỌ–CH, Flash Installation and Troubleshooting Infrared spectra provided courtesy of Thermo Electron Corp. 110% Transmittance Wavenumber: 4000 3500 3000 2500 2000 Wavenumber (cm) 1500 1000 450 [References] Review Topics] The compound from the following list that exhibits the infrared spectrum below is (Use your cursor to read the IR frequency scale.) сн. H-C=C-C-CH, HOCH, CH...
pls interpret and analyze both IR Spectrum . thanks
philip/johnson 105 100 95 90- 85 80 75 70 65 60 55 50- 45- 500 1000 1500 2000 2500 3500 3000 4000 Wavenumbers (om-1) %Transmittance 100 philipljphnson 95- 85 80 75 70- 65- 60 55 50 4000 3500 1000 500 3000 1500 2500 2000 %Transmittance 90
philip/johnson 105 100 95 90- 85 80 75 70 65 60 55 50- 45- 500 1000 1500 2000 2500 3500 3000 4000 Wavenumbers (om-1) %Transmittance...
1) Identify the functional group (alkane, alkene, ketone, aldehyde, aldehyde, etc) for the compounds providing the IR spectra: % Transmittance 4000 3500 3000 1500 1000 500 2500 2000 Wavenumber(cm) % Transmittance 4000 3500 3000 1500 1000 500 2500 2000 Wavenumber(cm) % Transmittance 1000 3500 3000 1500 1000 500 2500 2000 Wavenumber (cm)
HELP
B) Interpret IR spectrum of product (shown below) and provide a table listing functional groups and peak intensity. Microns (um) 2.5 3.0 3.5 4.0 6.0 8 10 15 20 Transmittance (%) 1838 cm-19 -V1759 cm-111 TTTTTTTTT 4000 3500 3000 2500 2000 1500 1000 Wavenumber (cm-1) 500
2) Which is the most reasonable structure for a compound with this IR spectrum? Wavelength, (um) 2.2 2.4 2.6 3 3,5 4 4,5 5 5,5 6 1 8_9 10 11 12 13 14 16 MAN 4600 4000 3500 3000 2500 2000 1500 Wavenumber, (cm) 1000 800 600 (A) (B) ОН CH3(CH2)4-C=C-COCH; CH(CH2)3-C=C-CHCH (C) (D) H-C=C-(CH2)4CCH3 CH3(CH2)4-CH=CH-CH 3) Which structure is consistent with following IR spectrum? * 2.527 3 Wavelength, (um) 3,5 4 4,5 5 5,5 6 6,5 7 8 9...
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