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Assign at least two functional groups from the experimental IR spectrum. What can you conclude about...
Assign at least two functional groups in your experimental IR spectrum on the next page. What can you conclude about the purity of your experimental caffeine product from the IR spectrum and % yield (17.8%)? IR SPECTRUM OF EXTRACTED CAFFEINE 4000 1000 vo
Interpret the IR spectrum. Assign peaks to the major
functional groups present in Compound 3.
%Transmittance 4000 451 3500 3000 2500 Wavenumbers (cm-1) 2000 1704.22 1582.94 1500 1455.74 1401.84 1360.52 1277.77 1199.79 1169,80 1000 1149.01 1090.22 1008 96 1024.98 COMPOUND 3 942.39 919 35 885.89 855.60 780.62 714.49
Assign functional groups/vibrations (bending, stretching) to
each peak for the computational IR spectrum for carbon dioxide
shown below. From left to right the peak numbers are 1485 cm^-1,
864.5 cm^-1, and 644 cm^-1.
.
40 Transmittar 3000 1000 2000 Wavenumber (cm-1)
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...
From the IR spectrum shown below, suggest functional groups that you recognized, and with the peak (wave number, 1/cm group test you would use. also suggest which functional INFRARED SPECTRUM Transmitance 3000 2000 1000
Discuss the IR spectrum and what is the peak in
IR that you can see for a specific functional group of the
product?
Discuss 1H NMR spectrum. Assign and interpret each peak. How
do you determine the formation of the product using 1H NMR?
IR Spectra 75 70 65 60 Transmittance 56 50 45 46 35 4000 3500 3000 1600 1000 2500 2000 Wenumbers (on 1) HNMR spectra Cheap
Draw at least two functional groups on the IR for this Molecule: IR SPECTRA for extracted Caffeine
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
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
1. Infrared spectra analysis a. Label important functional groups above 1500 cm anthraldehyde acid. in the IR spectrum of 9- 2000 b. Label important functional groups above 1500 cm Wittig product: in the IR spectrum of the WIN 1000 cm-1 2000 C. Based on the differences between the starting material and product spectra, how do we know the product was actually formed?: b. Label important functional groups above 1500 cm in the IR spectrum of the Wittig product: 304871 cm...