Homework Answers
The complete disappearance of OH group (3400 - 3000 cm-1) in the product IR spectrum confirms the 100 % reaction completion. The sharp split peak at 1000 cm-1 possibly a C-O stretch of alcohol group had completely disappeared in the product IR spectrum is also an additional evidence of 100 % reaction completion. In addition, the finger print region of starting material (500 - 1000 cm-1) has completely disappeared and new stretchings were observed in the product IR spectrum.
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compare the IR spectra of the alcohol and product and comment
on the completion of the...
Q1. Compare the IR spectra of the alcohol and product and comment on the completion of...
Q1. Compare the IR spectra of the alcohol and product and
comment on the completion of the reaction and purity of the product
collected. (4 pts.)
.
Q3. Draw the structures of all products formed in your bromine
test (4 pts)
Q4. Draw the structures of all products formed in your
KMnO4 test (4 pts)
Sinetanco 88 ES & 3 3 3 3 SRPEN 8 8 4000 3600 3000 1500 2500 2000 Wevenumbers (cm-1) 1000 Alcohol 8 8 8 88...
analyze the IR spectra. Indicate product formed 1% 3500 4000 3000 2500 2000 1500 1000 450...
analyze the IR spectra. Indicate product formed
1% 3500 4000 3000 2500 2000 1500 1000 450 cm-1
Task to do: Carefully analyze the two IR spectra at the bottom, and identify one characteristic...
Task to do: Carefully analyze the two IR spectra at the bottom, and identify one characteristic absorption peak for both the reactant and the product and record it in the following table. Compound Structure Functional group responsible for each peak IR Absorption peaks In cm name IR-1 110 00 90 80 70 - 60 40 30 20 4000 3500 3000 1000 2500 2000 100 Wweumbers (cm-1) IR-2 a00 2018 (GMT 06.00) 110 100 90- 70 60 50- 40 30 3500...
Please draw the structure of bromobenzoate and label the IR spectra. --sop arebo617:24:48 2019 CGMT-08 00)...
Please draw the structure of bromobenzoate and label the IR
spectra.
--sop arebo617:24:48 2019 CGMT-08 00) 3 and lahel the ZR 4000 3500 3000 2500 2000 Wavenumbers (cm-1) 1500 1000 500
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
IV. On each the following IR spectra, circle and indicate the most important stretching signals from...
IV. On each the following IR spectra, circle and indicate the most important stretching signals from the following choices:N-H, O-H, C=N, C=C, C=0, C-O, (3 points each, 6 points total) Top, IR spectrum of Compound 23a: C10H120; Bottom, IR Spectrum of Compound 23b: C16H140 1.025 1.000 m 0.975 0.950 Transmitance 0.925 0.900 0.875 0.850 3750 3500 3250 3000 2750 2500 1750 1500 1250 1000 750 2250 2000 Wavenumbers (cm-1) 1.0 0.8 0.6 Transmitance N 0.2 0.0 4500 4000 3500 2000...
IV. On each the following IR spectra, circle and indicate the most important stretching signals from...
IV. On each the following IR spectra, circle and indicate the most important stretching signals from the following choices:N-H, O-H, C=N, C=C, C=0, C-O, (3 points each, 6 points total) Top, IR spectrum of Compound 23a: C10H120; Bottom, IR Spectrum of Compound 23b: C16H140 1.025 1.000 m 0.975 0.950 Transmitance 0.925 0.900 0.875 0.850 3750 3500 3250 3000 2750 2500 1750 1500 1250 1000 750 2250 2000 Wavenumbers (cm-1) 1.0 0.8 0.6 Transmitance N 0.2 0.0 4500 4000 3500 2000...
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
organic IV. On each the following IR spectra, circle and indicate the most important stretching signals...
organic
IV. On each the following IR spectra, circle and indicate the most important stretching signals from the following choices N-H, O-H, CEN, CAC, C-0, C-O, (3 points each, 6 points total) Top, IR spectrum of Compound 23a: CH120, Bottom, IR Spectrum of Compound 23: CH10 1.005 1000 0.975 m mom 0.950 Transmitance 6.900 1500 1110 1250 1000 2150 3000 1250 3500 3750 3505 2390 2000 Wavenumbers (om-1) 10 08 " ให้ 04 Transmitance 04 02 2000 1500 1000 00...
What peak in the IR spectrum most clearly demonstrates the presence of alcohol product? If the...
What peak in the IR spectrum most clearly demonstrates the
presence of alcohol product? If the product had unreacted aldehyde
remaining, what IR peak would indicate the presence of this
contaminant?
% Transmittance 4000 100 grignard 3500 3445.90 alcohol 0-H stretching 3000 2955.99 C-H alkane stretching 2869.74 2835.23 2500 Wavenumbers (cm-1) 2000 C-H stretching 1610.54 1585.02 1500 1509.80 1464.30 1442.09 1381.94 1301.38 1242.79 1171.03 1107.61 1000 1033.47 958 30 935.19 834.42 798.16 766.54 638.11 551.44 500
Q1. Compare the IR spectra of the alcohol and product and
comment on the completion of the reaction and purity of the product
collected. (4 pts.)
.
Q3. Draw the structures of all products formed in your bromine
test (4 pts)
Q4. Draw the structures of all products formed in your
KMnO4 test (4 pts)
Sinetanco 88 ES & 3 3 3 3 SRPEN 8 8 4000 3600 3000 1500 2500 2000 Wevenumbers (cm-1) 1000 Alcohol 8 8 8 88...
analyze the IR spectra. Indicate product formed
1% 3500 4000 3000 2500 2000 1500 1000 450 cm-1
Task to do: Carefully analyze the two IR spectra at the bottom, and identify one characteristic absorption peak for both the reactant and the product and record it in the following table. Compound Structure Functional group responsible for each peak IR Absorption peaks In cm name IR-1 110 00 90 80 70 - 60 40 30 20 4000 3500 3000 1000 2500 2000 100 Wweumbers (cm-1) IR-2 a00 2018 (GMT 06.00) 110 100 90- 70 60 50- 40 30 3500...
Please draw the structure of bromobenzoate and label the IR
spectra.
--sop arebo617:24:48 2019 CGMT-08 00) 3 and lahel the ZR 4000 3500 3000 2500 2000 Wavenumbers (cm-1) 1500 1000 500
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
IV. On each the following IR spectra, circle and indicate the most important stretching signals from the following choices:N-H, O-H, C=N, C=C, C=0, C-O, (3 points each, 6 points total) Top, IR spectrum of Compound 23a: C10H120; Bottom, IR Spectrum of Compound 23b: C16H140 1.025 1.000 m 0.975 0.950 Transmitance 0.925 0.900 0.875 0.850 3750 3500 3250 3000 2750 2500 1750 1500 1250 1000 750 2250 2000 Wavenumbers (cm-1) 1.0 0.8 0.6 Transmitance N 0.2 0.0 4500 4000 3500 2000...
IV. On each the following IR spectra, circle and indicate the most important stretching signals from the following choices:N-H, O-H, C=N, C=C, C=0, C-O, (3 points each, 6 points total) Top, IR spectrum of Compound 23a: C10H120; Bottom, IR Spectrum of Compound 23b: C16H140 1.025 1.000 m 0.975 0.950 Transmitance 0.925 0.900 0.875 0.850 3750 3500 3250 3000 2750 2500 1750 1500 1250 1000 750 2250 2000 Wavenumbers (cm-1) 1.0 0.8 0.6 Transmitance N 0.2 0.0 4500 4000 3500 2000...
Identify this compound (label all major
functional groups on IR spectra).
SAMPLE 100- % TRANSMITTANCE 4000 1000 3500 3000 2000 1500 2500 WAVENUMBERS 600.1
organic
IV. On each the following IR spectra, circle and indicate the most important stretching signals from the following choices N-H, O-H, CEN, CAC, C-0, C-O, (3 points each, 6 points total) Top, IR spectrum of Compound 23a: CH120, Bottom, IR Spectrum of Compound 23: CH10 1.005 1000 0.975 m mom 0.950 Transmitance 6.900 1500 1110 1250 1000 2150 3000 1250 3500 3750 3505 2390 2000 Wavenumbers (om-1) 10 08 " ให้ 04 Transmitance 04 02 2000 1500 1000 00...
What peak in the IR spectrum most clearly demonstrates the
presence of alcohol product? If the product had unreacted aldehyde
remaining, what IR peak would indicate the presence of this
contaminant?
% Transmittance 4000 100 grignard 3500 3445.90 alcohol 0-H stretching 3000 2955.99 C-H alkane stretching 2869.74 2835.23 2500 Wavenumbers (cm-1) 2000 C-H stretching 1610.54 1585.02 1500 1509.80 1464.30 1442.09 1381.94 1301.38 1242.79 1171.03 1107.61 1000 1033.47 958 30 935.19 834.42 798.16 766.54 638.11 551.44 500
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