SignalABсDEFPractice q # 77. The IR and the ¹H NMR spectra of an unknown with molecular formula of C8H₁5NO₂ areshown below. The questions that follow will guide you in the determination of its structure.1925 26 27 28 298 (ppm)a. Determine the degree of unsaturation. Show your calculation.c. Analyze the ¹H NMR spectral data in the table below.Integral Multi--tion plicity3H1.952.30b. Analyze three significant bands in the IR spectra and conclude on the existing functions.2.624.265.566.116H2HF D2H1H1HSSttㅁddCCommentsBAd. Draw the final structure of the unknown in this box below.Final Structure4/15

Answered: Image /qna-images/answer/28c969b9-c435-4433-8947-5558a6a5e994.jpg

7. The IR and the ¹H NMR spectra of an unknown with a molecular formula of CsH₁5NO₂ are shown below. The questions that follow will guide you in the determination of its structure. F 1. D # D с B a. Determine the degree of unsaturation. Show your calculation. A U t b. Analyze three significant bands in the IR spectra and conclude on the existing functions. le 14 31 4/15

7. The IR and the ¹H NMR spectra of an unknown with a molecular formula of CsH₁5NO₂ are shown below. The questions that follow will guide you in the determination of its structure. F 1. D # D с B a. Determine the degree of unsaturation. Show your calculation. A U t b. Analyze three significant bands in the IR spectra and conclude on the existing functions. le 14 31 4/15

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

16. Select the most appropriate set NaOH, H20 of reactants to afford the following major organic product: 335 K of + A В D 17. Select the appropriate structure for glutamic acid at pH = 2. %3D A B НО HO, HO. NH3 NH2 + D NH3 NH2 18. Select the molecules that exhibit aromaticity NH2 НО 1 2 4 а. 1 b. 1 and 4 С. 1 and 3 d. 2 and 3 На Hc 19. The abstraction of which labeled hydrogen from the naturally-occurring amino acid tryptophan will result in `N' Hb the most stable radical intermediate? Hd of
Sketch the NMR Spectrum of the following molecule: CH3 HC- -OČHCH3 An unknown compound A, C4H,O, has the NMR and IR spectra shown below. Propose a structure that is consistent with this information. MF CAHgO 100 MW 72 %C 66.6 %H 11.2 Mass Spec. Data relative m/z abund. 27 23 24 49 9 100 8 31 39 53 57 71 72 36 20 2sae 200e 1500 HAVENUMNERS 3H Copyright © 1994 2H 1H 1H 5.0 Proton NMA 4.5 4.0 3.5 3.0 2.5 2.0 1.5 PPMA.0 895. 08
Compound 41 is a colourless liquid with the chemical formula: C¿H₁4O. Using this information, as well as the spectral data provided below, determine its structure. Relative Intensity 100 80 40- 20 0 A 10 Mt not observed 20 30 40 50 m/z 1600 1PXC) 80 28 2.2 120 B 03 0.0 04 02 cam 1³C Spectral Data (8. ppm): 73.06. 33.74., 25.81, 8.20
CHEM 310 and 312 Homework # 4 Compound X has an empirical formula of C10H13NO2. Given are the following spectra. a. Determine the degree of unsaturation for the compound. b. Assign five important peaks in the IR spectrum. c. Suggest a structure for compound X based on the spectra given. Show all your work and clearly indicate what your final answer is. Integration Multiplet 22 2 3 d. d ts "m" t CHEM 310 and 312 200 180 140 120 100 DEPT 135
A molecule produces two molecular ions with a m/z of 152 and 154 and a base peak with a m/z of 73. The IR and ¹H NMR spectra are shown below. Draw the structure that best fits this data. 4000 1H 11 10 3000 9 8 2000 7 1500 Wavenumbers (cm) + 6 5 2H 1000 2H 2 1 500 ppm of Q Q
A molecule with the molecular formula of C7H8O produces the IR spectrum shown below. Draw a structure that best fits this data. 4000 D 3000 TO 2000 1500 Wavenumbers (cm'¹) 1000 500
16) The partial chemical structure and ¹H NMR spectrum of 1-bromopropane (C3H/Br) are shown below. Draw in the hydrogen atoms and label them with a subscript that corresponds to the labeled peaks in the ¹H NMR spectrum. Provide a brief rationale for your structural assignments. 11 10 NSP-00-184 T 9 8 7 6 Peak 1: 3.39 ppm 2H Triplet 5 4 3 Peak 3: 1.03 ppm 3H Triplet Peak 2: 1.87 ppm 2H Sextet ppm Rationale for peak assignments in structure: I 2 1 0 Draw in labeled hydrogen atoms (H₂, H₂, H₂) and assign them to peaks 1-3 CI- 14. : I figner that % H. H₂ HS - H² Structure of 1-bromopropane
2. Determine the structure of a molecule (C7H14N2) using the following spectral data. If you need more space, attach another piece of paper. IR: 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 4500 4000 3500 3000 2500 2000 1500 1000 Wavenumbers (cm-1) 'H NMR: 8 1.06 ppm (3H, doublet), 1.11 ppm (3H, triplet), 1.72 ppm (2H, quartet), 2.39 ppm (2H, triplet) 2.59 ppm (2H, quartet), 2.63 ppm (1H, sextet), 3.32 (1H, broad singlet) Transmitance
A molecule with the molecular formula of C6H100 produces the IR spectrum shown below. Draw a structure that best fits this data. 4000 3000 2000 1500 Wavenumbers (cm-1) 1000 500
4. The IR and the 'H NMR spectra of an unknown with a molecular formula of C₁1H14O3 are shown below. The questions that follow will guide you in the determination of its structure. a- Determine the degree of unsaturation. Show your calculation. b- Analyze three significant bands in the IR spectra below that conclude on the existing functions in the molecule. NICOLET 20SX FT-IR MICRONS 6 2.5 2.6 2.7 2.8 2.9 3 3.5 4.5 5.5 8 9 10 11 12 13 14 15 17 18 19 21 22 100 +00 90 05 80 401 70 02 60 50 03 40 30 20 10 0 4000 3800 3600 3400 3200 3000 2800 2600 2400 1800 1000 1600 1400 WAVENUMBERS C F E 7 8 6 2200 2000 5 D 4 1200 3 B 2 800 1 16 V A 600 0 104 jos 06 +0.7 108 109 1.0 20 450
Practice q # 7 7. The IR and the ¹H NMR spectra of an unknown with a molecular formula of C8H₁5NO2 are shown below. The questions that follow will guide you in the determination of its structure. 25 26 27 28 29 3 100 90 80 70 60 50 40 30 20 10 0 4000 7 3800 3600 3400 3200 3000 2800 2600 2400 2200 F 3.5 6 4.5 D 5 5 2000 5.5 1800 MICRONS 1600 WAVENUMBERS D 4 7 1400 8 1200 C 3 10 1000 B a. Determine the degree of unsaturation. Show your calculation. 11 A 2 NICOLET 20SX FT-IR 12 13 14 15 16 17 18 19 21 22 +0.0 800 1 600 b. Analyze three significant bands in the IR spectra and conclude on the existing functions. 05 02 +0.3 0.4 0.5 0.6 +0.7 0.8 0.9 1.0 2.0 450 0
1:24 LOD TRANSMETTANCEI 11) What is a reasonable structure for a molecule with the formula C5H80 and the following IR spectrum? Be sure to justify your structure by indicating important peaks along with the intensities and breadth of those peaks that helped in your determination. D b. The C-H stretching region 4000 LOD Photo 3000 4000 3000 Tum 2000 HAVENUMBERI 2000 12) What is a reasonable structure for a molecule with the formula C6H₂N and the following IR spectrum? Be sure to justify your structure by indicating important peaks along with the intensities and breadth of those peaks that helped in your determination. 1500 NAVENUMBERI 1500 1000 + 500 1000 Done 500 O