Concept explainers
Identify each of the
NMR spectra:
(one carbon)
(one carbon)
(three carbons)
(one carbon)
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Solutions Manual for Organic Chemistry
- What is the structure of the compound with the formula C10H14O, if it shows a strong broad IR signal near 3300 cm-1, the 1H-NMR spectrum is: 1.44 ppm (9H singlet) 4.97 ppm (1H broad singlet) 6.90 ppm (2H doublet) 7.32 ppm (2H doublet)arrow_forwardThe compound whose 1H NMR spectrum is shown has the molecular formula C8H9Br. Follow the following questions to predict the unknown structure. 3(a) Degree of the unsaturation of this compound = , 3(b) The two peaks at 3.16 δ and 3.56 δ indicate two triplets Yes or NO = 3(c) The compound has 2 CH2 groups Yes or No = 3(d) Depending on the two triplets' chemical shifts one of the CH2 may have attached to the Br, Yes or No = 3(e) The multiplet at 7.18 δ to 7.29 δ indicate that compound is .........-disubstituted benzene = 3(f) The name of the unknown compound is =arrow_forwardWhat is the structure of the compound with the formula C5H12O, if it has a strong broad IR signal centered near 3330 cm-2, and the 1H-NMR spectrum is: 0.91 ppm (3H triplet) 1.19 ppm (6H singlet) 1.50 ppm (2H quartet) 2.24 ppm (1H singlet)arrow_forward
- What is the structure of the compound with the formula C10H14O, which shows a strong broad signal near 3300 cm-1, the 1H-NMR spectrum is: 1.44 ppm (9H singlet) 4.97 ppm (2H doublet) 7.32 ppm (2H doublet)arrow_forwardIdentify the structures of isomers H and I (molecular formula C8H11N).a.Compound H: IR absorptions at 3365, 3284, 3026, 2932, 1603, and 1497 cm−1b.Compound I: IR absorptions at 3367, 3286, 3027, 2962, 1604, and 1492 cm−1arrow_forwardIdentify the compound from the infrared spectra. a) 2-Pyridinecarboxaldehyde b) Phenol c) Phenylmethylamine d) 3- Chloropropionamide e) 2- ethylpyridinearrow_forward
- Analyse the high resolution proton NMR spectrum of a compound with a molecular formula of C8H16O2 and and write its name. Options: A. 2-ethylhexanoic acid B. 1,4-cyclohexanedimethanol C. ethyl hexanoate D. butyl butyrate E. ethyl 2,2-dimethylpropanoatearrow_forwardPlease Annotate the 1H NMR and 13C NMR. The structure is Cyclopentanone C5H8O :)arrow_forwardWhat is the structure of the compound with the formula C10H14 and it shows 1H-NMR spectrum: 1.2 ppm (9H singlet) 7.10 ppm (5H multiplet)arrow_forward
- Shown below is the C13 NMR spectrum of one of the three isomeric dichlorobenzenes. Is the compound= 1,2-dichlorobenzene 1,3-dichlorobenzene 1,4-dichlorobenzenearrow_forwardIdentify each of the following observations as qualitative or quantitative data. D-L reagent turns brown when applied to marijuana-containing plant material. A reddish-brown stain observed at a crime scene appears to be blood. A mass spectrum of methamphetemine shows a strong peak at 58 m/z units.arrow_forwardWhat is the structure of the compound with the formula C8H10O has six signals in its 13C-NMR spectrum. The IR spectrum shows signals at 3400 and 2900 cm-1, the 1H-NMR spectrum is: 1.19 ppm (3H triplet) 2.58 ppm (2H quartet) 4.65 ppm (1H broad singlet) 6.07 ppm (2H doublet) 7.05 ppm (2H doublet)arrow_forward
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