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- Examine the following IR spectra. Assign the characteristic peaks/vibrations (use v, 8, t, y). Then, tell (in words) all you can about the compound producing these spectra.Please solve this organic chemistry question A carboxylic acid with the molecular formula C5H10O2 is treated with thionyl chloride to give compound A. Compound A has only one signal in its 1H NMR spectrum. Please figure out this carboxylic acid. You can write out name directly or molecular formula with functional groups (e.g. isopropanol (CH3)3COH). Hint: Only one H NMR signal means all hydrogens are in the same chemical status.Predict (draw) the ¹H NMR and 13C NMR spectra for each molecule. Your illustration should include chemical shift, integration, and splitting (where appropriate). Label each signal in your spectrum a, b, c... etc and label the corresponding C/H atoms in each molecule. CI
- Examine the following IR spectra. Assign the characteristic peaks/vibrations (use v, 8, t, y). Then, tell (in words) all you can about the compound producing these spectra. 1190 896 5D 1466 2879 2968 4000 3000 2000 1500 1000 500 HAVENUMB ERI -11 TRANSHITTANCEIX1Draw the correct structure from the MS, 1H NMR, 13C NMR, and IR data given below. Both of the peaks on the 1H NMR spectrum are doublets (J = 2.5 Hz) and the integration ratio is 1:1.Label all relevant peaks that are above the fingerprint region (>1500 cm-1) in all the IR spectra given below with the functional group that those peaks are representative of (make sure not to forget the aldehyde C–H bonds, which many IR charts do not list). Based on the table you completed with predicted Diagnostic IR peaks for each compound, and based on the IR spectra you had labeled, match each compound with its spectrum.
- Steps in Spectral Identification: •Identify major peaks in IR spectrum, if any. •Deduce structural fragments for each of the 1H NMR spectral signals. •Give the structure of the compound •Assign the signals in the 1H NMR spectra to specific protons •Assign carbons to the peaks in the 13C NMR spectrum Step 1. Calculate the degree of unsaturation for the unknown. Step 2. Determine the functional group from IR Step 3. Analyzing the MS spectrum Step 4. Analyzing the 1H NMR spectra Determine the number of different kinds of protons Step 5. Analyzing the 13C NMR spectraConsider the following proton NMR spectrum. The compound producing it contains oxygen, and IR analysis shows that it has v(C=O). Integrations are given at each signal . Propose a structure and assign it consistent with the NMR information. (Assign=draw structure and label a,b,c etc, each H-type; then label spectrum to tell which signal is from which H-type.) *See the second blue image for help.Examine the IR spectrum in Photo 1. Record the wavenumber for each relevant peak in Data Table 1. Record the bond represented by each relevant peak. Identify the functional groups associated with each bond and record it. Circle the structure(s) on Photo 2 that match the data.
- 2) On spectra 2 are the mass, IR and 13 C and 1 H NMRspectra of an organic compound.a) From these spectra, determine the structure of the molecule. Rememberto ignore the triad in the 13 C NMR spectrum at 7 ppm that comes from theNMR solvent. b) Draw the structure of the molecule and label each hydrogen with a letter(A, B, C...). Then fill in the peak assignment table below. hydrogen chemical shift integration splitting pattern couples toIn the box provided, write the IR frequency or range of frequencies that would best distinguish between the two compounds shown. Specify which compound (A or B) will display a band at this frequency in its IR spectrum. Bond O-H (alcohol) O-H (carboxylic acid) N-H C-H (alkane) C-H (alkene) C-H (alkyne) C=C 2100-2250 C=C 1600-1680 C=O (aldehyde/ketone) 1630-1820 C=O (ester) 1735-1800 C=O (carboxylic acid) 1700-1725 C-O 1000-1250 A Stretching frequency (cm-¹) 3200-3650 2500-3300 3100-3550 2850-3000 3000-3100 OH 3300 لم B Intensity Medium, broad Strong, broad Medium Medium Medium to strong Weak to medium Weak Weak to medium Strong Strong Strong Strong (Choose the most prominent frequency. Do not include units in your answer. Use only the frequencies listed above. If there is more than one correct answer, only give one.) Write the letter of the compound, followed by the range of frequencies, separated by a comma. Example. "A,1600-1850". IR frequency or range of frequencies: cm-1 Previous…Draw high resolution NMR spectra of the following compounds. Go to SDBS database and verify the spectra. Also, find IR spectra of each compound. 1. Ethanol 2. Acetic acid 3. Benzene 4. Ethyl acetate 5. Acetone 6. Diethyl ether 7. Dimethyl ether 8. Propanol- 9. Propanal
