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)
Q1.
in alcohol the strong band at 3400 cm-1 is due to the hydroxy group, that is disappeared is almost disappeared in an alkene. therefore no alcohol is present in the product.
in the product, no band between 1600 - 1650 shows the absence of alkene also. therefore the product must be alkane and not alkene.
Q3.
if alkene is formed it will be decolorized the colour of bromine to form alkane dibromide as a product as shown below.
Q4.
if alkene is formed it will decolorize the color of KMnO4 to form dihydroxide as product.
Q1. Compare the IR spectra of the alcohol and product and comment on the completion of...
compare the IR spectra of the alcohol and product and comment
on the completion of the reaction and purity of the product
collected
IR Spectra Alcohol lansmance 4000 3500 3000 1500 2500 2000 Wavenumbers (cm-1) 4000 3500 3000 2921.53 2500 Wavenumbers (cm-1) 2000 IR spectra product 1500 1444 44 1375 29 1000 1143.23 1039.81 916.32 797.83 423.62
analyze the IR spectra. Indicate product formed
1% 3500 4000 3000 2500 2000 1500 1000 450 cm-1
Please evaluate the IR spectrum. Provide a structure and note
any important peaks corresponding to the structure.
It was an experiment using:
isoamyl alcohol + acetic acid
sulfuric acid as the catalyst
and the products are isoamyl acetate and water. Thank you so
much!!!
95 卜诒 卜” 90 85 寸 80 75 70 65 E 60 ー 55 50 45 40 35 30 25 20 4000 3500 3000 2500 2000 Wavenumbers (cm-1) 1500 1000 500
95 卜诒 卜” 90 85...
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
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...
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
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...
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
On the provided spectra, do the following
-Identify the peaks in the functional region of the spectra
- Label the peak characteristics (strong, medium, weak,
broad)
- Identify the unknown molecule (butan-2-ol, cyclohexane,
hexanal, cyclohexanone, tert-butylamine, propionic acid)
98 96 94 92 90 86 84 82 80 78 76 74 72 4000 3500 3000 2500 2000 1500 1000 Wavenumbers (cm-1)
98 96 94 92 90 86 84 82 80 78 76 74 72 4000 3500 3000 2500 2000 1500 1000...