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PRACTICE PROBLEM 9.2
What compound with molecular formula
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EBK ORGANIC CHEMISTRY
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- 6) Complete the spectroscopy data tables for a compound with molecular formula C6H12O. Determine the structure of the compound. Any labile protons, if they exist, will not be present in this particular 1H NMR spectrum.arrow_forwardA bottle is labeled only "Compound B (C6H₁2)" and contains a colorless liquid. You have been called in as an expert to identify this compound from its spectra: IR: 3080, 1646, 888 cm¯¹; ¹H NMR 2400 2100 8 1800 compound B (C6H₁2) 7 1500 6 M chemical shift, Hz 1200 5 4695 900 J = 6.9 Hz 600 2234 6721 3 4 chemical shift, ppm (8) The magenta numbers in the spectrum are the relative integrals in arbitrary units, and the violet numbers are coupling constants. 300 13730 2 0 1 J = 6.9 Hz 0arrow_forwardThe 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).arrow_forward
- Assign the C (Roman numerals) and H (Roman letters) atoms in the given structures using the 13C (top) and 1H (bottom) NMR spectra providedarrow_forwardPls explain tooarrow_forwardPredict the theoretical number of different NMR signals produced by each compound, and give approximate chemical shifts. Point out any diastereotopic relationships. (a) Ph¬CHBr¬CH2Br (b) vinyl chloridearrow_forward
- what are the structures of these two compounds by fully assigning their spectra peaks and explaining the coupling pattern in 1H NMR spectraarrow_forward1) They were given a mysterious chemical by ASP Rinuprasad, coded as Compound X, which was believed to be a forbidden drug smuggled through KLIA airport. Little they know about the chemical from the convict. As competent officers, together they decided to run several spectroscopic and analytical tests to determine the molecular structure of Compound X. They managed to obtain the spectra and data of IR, 'H NMR (400 MHz in CDCI 3), 13C and DEPT (100.6 MHz in CDC13), COSY, HMQC, HMBC, mass spectrometry and elemental analyses. Determine the molecular structure and name of Compound X. IR SPECTRUM 2.5 100 3.0 4.0 5,0 6.0 7.0 8.0 9.0 10 12 15 2000 avenumber cm 1500 000 1000 1Η ΝMR 7.50 7.45 7.40 7.35 7.30 7.25 7.20 7.15 7.10 7.05 7.00 55 50 1.5 100 9.5 9.0 8.5 8.0 7.5 7.0 65 60 4.5 35 3.0 2.5 20 10 0.5arrow_forwardCompound 1 has molecular formula C7H15Cl. It shows two signals in the 1H-NMR spectrum, one at 1.08 ppm and one at 1.59 ppm. The relative integrals of these two signals are 3 and 2, respectively. Propose structures for compound 1, explaining how you reach your conclusion.arrow_forward
- Explain why 2-chloropropene shows signals for three kinds of protons in its 1H NMRspectrum? Draw the structure and predict the approximate values for 1H-NMR spectra.arrow_forwardI need help drawing the structure of the chemical formula given based on the NMF spectrum.arrow_forwardThe 1H-NMR spectrum of ethanol shows a triplet at 1.23 ppm, a singlet at 2.61 pm, and a quartet at 3.69 ppm. Assign each signal to the protons it corresponds to in the molecule. Explain the splitting pattern observed for each signal.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningEBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT