Part 3: Spectroscopic Analysis of the Product Problem 5: Identify at least four diagnostic absorptions in the infrared spectrum of propyl salicylate. Identify the corresponding bond vibrations in the structure below and list the observed frequency alongside. (10 points) OH Problem 6: Based on the 'H-NMR spectrum of the product, provide the observed chemical shifts, integration, multiplicity and coupling constants (in Hz) for each chemically non-equivalent set of protons i propyl salicylate. Utilize the format indicated below for each set of chemically distinct protons. Be sure to provide all coupling constants for each aromatic proton- one for direct coupling with the neighboring protons and another for long-range coupling. (30 points) H H H H H OH CH3 1.04 ppm, 3H, triplet, J = 7.6 Hz

Part 3: Spectroscopic Analysis of the Product Problem 5: Identify at least four diagnostic absorptions in the infrared spectrum of propyl salicylate. Identify the corresponding bond vibrations in the structure below and list the observed frequency alongside. (10 points) OH Problem 6: Based on the 'H-NMR spectrum of the product, provide the observed chemical shifts, integration, multiplicity and coupling constants (in Hz) for each chemically non-equivalent set of protons i propyl salicylate. Utilize the format indicated below for each set of chemically distinct protons. Be sure to provide all coupling constants for each aromatic proton- one for direct coupling with the neighboring protons and another for long-range coupling. (30 points) H H H H H OH CH3 1.04 ppm, 3H, triplet, J = 7.6 Hz

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

5. 3-bromo-1-phenyl-1-propene (below) shows a complex NMR spectrum in which the vinylic proton at C2 is coupled with both the C1 vinylic proton (J= 16 Hz) and the C3 methylene protons (J = 8 Hz). Draw a tree diagram for the C2 proton signal, and account for the fact that a five-line multiplet is observed. C1 C2 H de CH₂Br H C3
7. Determine the structure of the compounds below from their spectroscopy data. Sketch the 'H-NMR spectra of the following a and b compounds. Assign peaks to the structures. a) C3H10 1.2 8 (3H, triplet) 2.6 8 (2H, quartet) 7.1 8 (5H, broad singlet) b) C4H7BrO 2.11 8 (3H, singlet) 3.52 8 (2H, triplet) 4.40 8 (2H, triplet) Cs Scanned with CamScanner
Identify the significant absorption peaks by labeling them right on the spectrumand includethe spectrum in your laboratory report. Absorption peaks corresponding to the followinggroups should be identified: C—H (SP3) C—H (SP2) C—H (aldehyde) O—H C=O C=C (aromatic)aromatic substitution pattern C—OC—X (if applicable)
Identify the significant absorption peaks by labeling them right on the spectrumand includethe spectrum in your laboratory report. Absorption peaks corresponding to the followinggroups should be identified: C—H (SP3) C—H (SP2) C—H (aldehyde) O—H C=O C=C (aromatic)aromatic substitution pattern C—OC—X (if applicable)
Part C - Assigning absorption peaks in an NMR spectrum Using the concepts of chemical shift and spin-spin splitting, assign the listed resonances to the structure of ethyl butanoate. Identify the resonances by dragging the appropriate labels to their respective targets. View Available Hint(s) 1.2 ppm (3H triplet) 4.1 ppm (2H quartet) 1.6 ppm (2H sextet) 0.9 ppm (3H triplet) 2.3 ppm (2H triplet) HHO | | || H₂C-C-C-C-0-C-CH₂- I HH H I 1 H Reset Help
Ll.128.
1. How would you differentiate between the following sets of molecules by IR and ¹H NMR? Consider: IR frequency and shape/intensity and NMR chemical shift, integration, and splitting. (There are multiple ways for each, but I am looking the 'blinding headlights' clue that would jump out at you.) VS CI OH VS VS ai i VS OH VS OH
Please give the correct answer to the following NMR spectroscopy question and provide detailed solutions of the answer.
Write a complete analysis for each HNMR spectrum of the following compounds?
N F2 3A1: Recognize the difference between the ¹H decoupled and DEPT experiment data in ¹3C NMR. (a) Label every carbon atom in the given structure with a lowercase Roman letter (a, b, c, d, etc.), being sure to account for symmetry. # 3 (b) Use the given template to predict the ¹³C NMR peaks for the structure provided, using your letters on the structure above to label the peaks you draw in the spectrum. E D 80 F3 ¹H Decoupled 240 $ 4 R F d ppm % HO 5 0 240 240 F5 T G ^ 6 DEPT 135° ppm MacBook Air Y & 7 OH H CH3 Ad F7 0 240 U * 00 8 DEPT 90° J DII F8 ppm ( 9 DD F9 ) DE K F10 O P L
18. Proton NMR spectra are given together with molecular formula. Propose a structure that corresponds to each spectrum. (Hint: Find IHD first). Assign peaks to show which protons give rise to which peaks 10 10 10 (b) C4H8O₂ Offset: 2.4 ppm (b) C₂H100 9 (c) CsHgO₂ 9 8 8 7 7 6 6 6 5 8 (ppm) OHz 5 8 (ppm) 4 3.08 2.98 2.88 2.78 8 (ppm) 50Hz 4 4 3 2 1 0 0
When the 1î-NMR spectrum of acetone, CH3COCH3, is recorded on an instrument operating at 200 MHz, a single sharp resonance at 2.1î is seen. (a) How many hertz downfield from TMS does the acetone resonance correspond to? (b) If the 1î-NMR spectrum of acetone were recorded at 500 MHz, what would the position of the absorption be in î units? (c) How many hertz downfield from TMS does this 500 MHz resonance correspond to?