Predict the "C NMR spectrum of E,E-2,4-Hexadien-1-ol below. Be sure to indicate splitting (doublet, triplet, etc.). 200 180 160 140 120 100 80 60 40 20 CDS-06-153 ppm Label each non-cauivalent hydrogen with a number 1 2 3
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- CH3 2. An unknown isomer of C4H9Cl has the ¹³C NMR and DEPT-135 spectra shown below: 13C NMR: 90 70 |||| A 50 8 (ppm) CH3CH₂CH₂ CH₂ CI 30 10 DEPT-135: CH3 CH3-CHCH₂-CI B 90 70 Circle the compound that is represented by these spectra. Clearly explain your reasoning. you will need to explain how each of the other three isomers was eliminated from consideration. 50 8 (ppm) CH3CH₂ CH-CI CH3 C 30 10 CH3 CH3-C-CI CH3 DThe following two mass spectra represent 1-bromo-4-ethylbenzene and (1-bromoethyl)benzene, respectively. 100 - MS-IU-9451 Spectrum 1 80 - 60 40 20 - 25 50 75 100 125 150 175 m/z 100 - MS-NU-8350 Spectrum 2 80 - 60 20- 20 40 60 80 100 120 140 160 180 200 m/z 1. Assign each spectrum to one compound 2. Justify your assignment by assigning relevant signals in each spectrum. 3. Explain how you could determine which spectrum belongs to which compound. Relative Intensity Relative Intensityhelp with the following ochem question part a, b, and c regarding the NMR for the compound.... (5S, 7R)-7-bromo-,3,9-diethyl-6,6-dimethylundec-3,8-dien-5-ol
- Consider the product below a) Predict the 1H NMR spectrum for this molecule. Predict the multiplicity, integration and relative ppm b) Predict the 13C NMR spectrum and DEPT spectra. Use (+) for positivesignals, (-) for negative signals, and (X) for no signal in the DEPT NMR spectra.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 CamScannerThe following are all isomers of C10H140. Match the most appropriate structure to the NMR spectra shown below. Make sure to justify your selection using the data. D Он Which of the C1,H¾0 isomers above fits the following NMR spectrum best? 3H. d - - 3H. I 1H. s (disappears in DO) 2H. d 2H. d 2H. pentet 1H, sexlel 0 5. 5.0 4.0 ipan) 4.5 29 w bor
- 1. a. Determine the structure of the product of the following reaction. 1) excess MeMgBr 2) H3O+ b. Predict the number of signals you would observe for this compound in both the ¹H and 13C NMR spectra.CHM 2410Z - Organic Chemistry I Lab 2) Consider the following molecules and choose the two represented by the spectra below. Use the IR spectra to narrow the possibilities, and then use the NMR data to confirm your choice. a. 1H NMR data: OH 8 3.6 ppm (2H, quartet) 8 3.0 ppm (1H, triplet) 82.6 ppm (2H, triplet) 8 2.2 ppm (3H, singlet) 8 1.8 ppm (2H, pentet) b. 1H NMR data: 83.7 ppm (3H, singlet) 82.6 ppm (1H, septet (7)) 81.2 ppm (6H, doublet) OH IR spectrum: 100 4000 IR spectrum: OH Дог ная 3000 lion OH 0.8 0.4 2000 VNUMBER U 0.6 3000 1500 2000 Wavenumber (cm-1) OCH 3 1000 1000I. Identify the structure best consistent with the data and II. Justify your choice in 1-2 short sentences citing specific spectral data as evidence. 1H NMR465621 Cmar 2/ Klosterman W22 ©2022 otonan 3H CPossible Chemical FS 6H 2H Structures 3H 1H OH llulle terman CHEM4 022 J Klosterman G22 ©2022 HOM40B W22 HO an MADB WZ ОН erman Kostermy Extra credit: What reagents did Prof. Slughorn use to make Chemical F? 1H 22 Klostermah CHEM40B Hz, 2H), 1.50 (sep, J = 7.0 Hz, 1H), 1.24 (s, 3H), 0.90 (t, J = 7.0 Hz, an 3 Molecular Formula: 40B/ OH NMR: 6 signals ppm o 2022 | Klosterma 0.88 (d, J = 7.0 Hz, 6H) ppm singlet at 1.80 ppm exchanges with D20. HEM40B CHEM408 aterr
- 17. The following proton NMR spectrum of a compound of molecular formula C3H8O 10 9 ©2017 Pearson Education, Inc. 8 6 H3C OHz H 50Hz 4.18 4.08 5 8 (ppm) 4 OHz 50Hz 1.38 1.28 a) Propose a structure for this compound. (Hint: Find IHD first) C+1-H+1/2/2 3+1-1/2 3 O (b) Assign peaks to show which protons give rise to which signals in the spectrum 0Provided are spectra for a compound with morecuar formua :08 H100 Pact A: give the degree of unsaturation: 4 degrees of unsaturahan. Part B: Identify the peaks that are associated with specific bonds of the Structure and list the corresponding functional groups that the Specific bonds belong to. Part C: Indicate which hydrogens correspond to which Signals in the H-NMR Spectrum only 3322-2896 wn 2456 A 30ZZ 1618 Tillid 200 180 160 140 170 100 80 600 40 20 C.24 82H) 4 (o C.1A Singlet D. 24 + 5 4 3 2 E.3H 314- Mention the number of peaks in the 1H NMR spectrum of 1,4-dimethyl-benzene(para-xylene or p-xylene). Show and draw the exact location of the aromatic ac thealiphatic hydrogens.15- Draw the 1H NMR spectrum of Ethyl bromide or 1-Bromoethane. Show the splittingindicating which is singlet, which is doublet, etc.