The following 'H NMR spectroscopic data were obtained for ibuprofen. Redraw the table in your answer book and assign the corresponding atom number to the spectroscopic data in the table below. Table. NMR spectroscopic data for ibupro fen Multiplicity, Atom # integration. 13 7.21 d, 2H "соон 7.10 d, 2H 9. IH d, 2H 3.70 12 2.44 m. IH d. 3H d. 6H structure of ibuprof en and its atom nunbering 1.84 1.49 0.89

The following 'H NMR spectroscopic data were obtained for ibuprofen. Redraw the table in your answer book and assign the corresponding atom number to the spectroscopic data in the table below. Table. NMR spectroscopic data for ibupro fen Multiplicity, Atom # integration. 13 7.21 d, 2H "соон 7.10 d, 2H 9. IH d, 2H 3.70 12 2.44 m. IH d. 3H d. 6H structure of ibuprof en and its atom nunbering 1.84 1.49 0.89

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...

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2. READ THE DIRECTIONS TO EACH QUESTION CAREFULLY - not following the directions means you get the question wrong! 3. FORMAT YOUR ANSWERS AS DIRECTED - formatting your answers incorrect means you get the question wrong! 4. Below are the IR regions and NMR chemical shifts table for use with the spectroscopy problems: ¹H NMR 12 R 11 10 OH R D H 9 8 7 H ppm 6 C=C-H OH 5 NH H-C-X H-C-O -OH X = F, Cl, Br (i.e. electronegative atom) 3 -NH 2 H-C-N H-C-S CC-H H-C-C=C 1 H-C-C=O-CH HC-0 -CH3 -CH₂- 0 4000 DIO small range range of values broad peak =C-H N-H 3250- 3300 broad with spikes -3300 3500 -O-H broad-3300 -3400 -O-H -CIN N-H CO H =C ㅏ 2730- 2820 H 3000- 2 peaks 3100 C-H H 2850- 2960 O -C-O-H broad-3000 3000 usually strong -CEN 2500 wavenumber, cm-¹ 2200 <-CICH B 2200 2000 H 0 C 0:0 C. ပြီး 1680 1730 O OR 1710 1600- 1660 18%0.058 N 1650 viz NR₂ 1600 1500 D 1000
Analyze the IR spectrum below and identify the compound
Help needed with analyzing the H-NMR spectra and answering the table below. Thank you in advance!
Please clearly label the answer and explain thoroughly. Thanks in advance.
NMR data Summary NMR solvent: DMSO-d6 'H NMR: Splitting (Multiplicity) Integration Chemical Shift 9.67 singlet 1H singlet doublet 9.17 7.37 6.72 2.00 1H 2H doublet singlet 2H 3H 1"C NMR: Chemical Shift 167.8 153.3 131.1 121.1 115.1 23.8 15N NMR: Chemical Shift 132.3 Instructions: Step 0: Look at the structure of Tylenol. Determine integration, and splitting you are expecting in the 'H NMR. Step 1: Look at the integration and splitting of the signals in the H NMR spectrum - assign the chemical shift of the protons of the methyl group; make a note which signals in the 'H NMR are due aromatic protons, NH and/or OH. Step 2: Look at the 'HSN HSQC spectrum - Use this spectrum to assign the chemical shifts of the NH proton and the OH proton. Step 3: Look at the 'H1SN HMBC spectrum - Use this spectrum to assign the chemical shifts of the aromatic protons in the 'H NMR. Step 4: Look at the 13C NMR spectrum - Make a note which carbon atoms are aromatic and/or alkyl. Assign the chemical shift of…
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Part 5: Putting It All Together We don't quite have all the parts of an NMR analysis yet, but we can go a long way to solving the structure of a molecule just by considering the number, chemical shifts, and in the case of 1H NMR, the integrals of the signals. In the next pages, a compilation of 'H and 13C NMR spectra are shown for all but one of the organic compounds shown below. Your job is to match the compound with the spectra. Don't just write the structure, some justification for your choices must be given as well. `NO2 HO NO2
What is the structure of the unknown? Determine it by analyzing the spectroscopic data given in IR, MS, 1H NMR, 13C NMR (Broadband decoupled with carbon types) and fully substantiate your answer with key supporting data from each spectrum.
9. Determine the structure of a compound with the following spectra and a formula of CSH12O2. Show your reasoning 3.5 3.0 2,0 1.5 1.0 PPM 0.5 2.5 Integral Values 15.5 80 Cwin 13NMR 160 120 100 20 FPM 100 68 2500 2000 1500 1000 WAVENURDERS Copyrisht 1992 600.0 caplary #is between sait pletes Spectra from A spectrum of Spectra, CD version, by Richard A Tomasi scat C21 18CT TADE 1745 1962 *TRANSKITTANCE
The following picture illustrates the molecular structure of prapanal (A) and propanone (B). H. H O H Н—С. -С—С—Н Н—С- -С—н H H (A) (B) Explain briefly, if infrared-spectroscopy is the appropriate technique to distinguish the molecules.
51:07 [References] 1 pt Splitting of a signal in a proton NMR spectrum tells us the number of chemically non-equivalent hydrogens in the immediate vicinity of the hydrogen giving the signal. Predict the number of lines exhibited by hydrogens at the labeled positions in a first-order NMR spectrum. (Make the approximation that all coupling constants are equal.) 1 pt 1 pt 1) 1 pt 1 pt 1pt восна осн The number of lines exhibited by hydrogen(s) a is The number of lines exhibited by hydrogen(s) b is The number of lines exhibited by hydrogen(s) c is 2) a The number of lines exhibited by hydrogen(s) a is The number of lines exhibited by hydrogen(s) b is The number of lines exhibited by hydrogen(s) c is Submit Answer Try Another Version 10 item attempts remaining
The NMR spectra for compound 1 were acquired in a 7.5 mg / 0.6 mL solution ofCDCl3 and are found in the accompanying file. The 1H are also listedbelow. Identify the name of compound 1 and Provide a full analysis of the NMR spectra for compound 1 with table showing peak name and assignment 1H NMR (400 MHz, CDCl3) δ 7.73 (d, J = 9.5 Hz, 1H), 7.56 (ddd, J = 8.5, 7.5, 1.6 Hz, 1H),7.51 (dd, J = 7.5, 1.6 Hz, 1H), 7.36 (d, J = 8.5 Hz, 1H), 7.30 (dd, J = 8.5, 7.5 Hz, 1H), 6.45(d, J = 9.5 Hz, 1H).