Interpretation:
The structure of the compound using given spectroscopic data is to be elucidated.
Concept introduction:
NMR data indicates the number and type of protons or carbons present in a compound based on the number of signals obtained in
Mass spectra of a compound indicate the molecular ion peak which gives the molecular mass of the compound.
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ORGANIC CHEMISTRY-ETEXT REG ACCESS
- Given here are 1H-NMR and 13C-NMR spectral data for two compounds. Each shows strong, sharp absorption between 1700 and 1720 cm-1 and strong, broad absorption over the region 2500–3000 cm-1. Propose a structural formula for compound.arrow_forwardThymol (molecular formula C10H14O) is the major component of the oil ofthyme. Thymol shows IR absorptions at 3500–3200, 3150–2850, 1621, and1585 cm−1. The 1H NMR spectrum of thymol is given below. Propose apossible structure for thymol.arrow_forward3. Propose a structure for an organic compound with molecular formula C3H1404 given the following 'H NMR and IR spectra. Draw the structure only, no need to interpret the spectra. 1H NMR Spectrum IR Spectrum Triplet Singlet d (6H) 8 (4H) 8 (4H) 1740 cm1 Quartetarrow_forward
- An unknown compound has a molecular formula of C,H,O. Its IR spectrum shows prominent absorptions at 2980, 2960, and 1718 cm . It exhibits the following signals in its H NMR spectrum (ppm): 1.06 (triplet, 3H), 2.12 (singlet, 3H), 2.45 (quartet, 2H); and the following signals in its ¹3C NMR spectrum ( ppm): 7.6, 29.5, 36.8, 208.8. Draw the structure of the unknown compound. Click and drag to start drawing a structure. 0 X 0:0arrow_forwardThe 1H-NMR spectrum of Compound C shows five signals – δ 2.38 (1H, dt), 2.72 (1H, dt), 5.34 (1H, t), 5.49 (2H, ddd), 6.27 (2H, dd) ppm. Its 13C-NMR spectrum has four signals – δ 26, 58, 127, 129 ppm. In the compound’s mass spectrum, the M+1 peak appears at m/z = 115. An M+2 peak, whose intensity is roughly one-third that of the M+1 peak, also appears. Suggest a structure for this compound.arrow_forwardThis compound, (C10H1002), shows strong, sharp absorption between 1700 and 1720 cm, and strong, broad absorption over the region 2500- 3000 cm. Given this information and the following NMR data, please draw the structure of the compound in the box below. H-NMR: 2.34 ppm, s(3H); 6.38 ppm, d(1H); 7.18 ppm, d(1H); 7.44 ppm, d(2H); 7.56 ppm, d(2H); 12.0, s(1H) 19C-NMR: 167.82; 143.82; 139.96; 131.45; 129.37; 127.83; 111.89; 21.13arrow_forward
- Please sol;;;!!!!:??arrow_forwardUse the 1H NMR and IR data to determine the structure of each compound.arrow_forwardplease help with this question. thank you. Given that compound X has a molecular formula of C6H10O2, gave three peaks in its 13C NMR spectrum (14, 63 and 158 ppm) and two peaks in its 1H NMR spectrum (1.4 ppm, triplet and 4.3 ppm, quartet), provide a structure for compound X and briefly explain.arrow_forward
- The 1H-NMR spectrum of Compound D of molecular formula C10H12O shows three singlets – δ 2.20 (6H, s), 4.86 (4H), 7.10 (2H) ppm. Its 13C-NMR spectrum has five signals – 20, 74, 127, 135, 146 ppm. Suggest a structure for this compound.arrow_forwardAn unknown compound has a molecular formula of C4H6O2. Its IR spectrum shows absorptions at 3095, 1762, 1254, and 1118 cm -1. It exhibits the following signals in its 1H NMR spectrum (ppm): 2.12 (singlet,3H), 4.55 (doublets of doublets, 1H), 4.85 (doublet of doublets, 1H), 7.25 (doublets of doublets, 1H); and the following signals in its 13C NMR spectrum (ppm): 20.8, 100.4, 141.2, 168.0. Draw the structure of the unknown compoundarrow_forwardA compound (C3H,NO) gives the following NMR data. In the box below please draw the structure of the compound. 'H-NMR: 2.06 ppm, s(3H); 7.01 ppm, t(1H); 7.30 ppm, m(2H); 7.59 ppm, d(2H); 9.90 ppm, s(1H) 13C-NMR: 168.14; 139.24; 128.511; 122.834; 118.90; 23.93 • You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. Do not include lone pairs in your answer. They will not be considered in the grading.arrow_forward
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