2. The IR spectrum of an unknown sample shows a strong, sharp peak at 1725 cm1. Disregarding any other peaks that may be present, name four functional groups that might give this peak.
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- Lable the IR spectrum by labeling each of the major peaks as a functional group. Also list the functional groups in C4H8OQ1: Consider the two spectra shown below. One is for 3-methyl-1-cyclopentanone and the other one is for 3-methyl-1-cyclohexanone. Identify which spectra belongs to one compound explain your reasoning. Identify the important absorption peaks correspond to a functional group. Describe the absorption peaks. am 100 4900 400 3000 d 1500 1300 REG ho DEFE 18 PES SAFE RECERES 100Please assign each set of peaks. Then provide a full structure.
- Does the peak labeled 5 correspond to group A, B, C, D, or E on structure B?Q2. This compound has the molecular formula C,H₁,NO₂. Included in this problem are the infrared spectrum, 'H NMR with expansions, and ¹3C NMR spectra data. этотури H Normal Carbon 14 ppm 61 116 SA SA 119 120 129 131 147 167 117 1700 cm DEPT-135 Positive Negative Positive Positive Positive Positive No peak No peak No peak DEPT-90 No peak No peak Positive Positive Positive Positive No peak No peak No peak quartet 10 till l 4 · triplet5. Suppose that the CH3 group connected to the nitrogen in methamphetamine were instead a CH2CH3 group. Briefly describe how the spectrum would change, including the number of signals, the splitting patterns, and integration. Ignore everything that's the same, I'm just looking for the differences. CH2: CH3: 6. Consider the structure of the drug Adderall, shown to the right. Briefly, what differences would you see in the spectrum of Adderall versus the spectrum of methamphetamine? NH3 Part 2: Mechanisms
- In 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 Stretching frequency (cm-¹) 3200-3650 2500-3300 3100-3550 2850-3000 3000-3100 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 1700-1725 C=O (carboxylic acid) C-O 1000-1250 A 3300 B OH 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 NextAnalyze the scpectra below, assign/label significant peaks and draw the isomers (correct structure of the formula C5H9N10. Label three peaks in the following spectrum with the bond that gives rise to them, and identify the functional group that is present in the compound (the compound has a formula of C5H1002)? 100 Transmittance (%) 88&RSRRRRS. 90 70 3200 2800 2400 2000 1800 Micrometers um 1400 1300 Wavenumber (cm-¹) 1000 800 کہہ 600 400
- Calculate the IHD of C7H6XNO and identify the important peaks in the following MS spectral data and draw the structure of the important peaks in the following MS spectral data.List ALL the significant peaks in the IR spectrum of each molecule below by showing which functional group should have an absorbance at which wave number. They might have more than one functional group.The IR spectrum of a sample contains absorptions at 3050, 2950, and 1620 cm-1. Towhat class of organic compound does this sample most likely belong? ExplainA) alkaneB) alkeneC) alkyneD) esterE) alcohol