The low-resolution mass spectrum of an unknown monosubstituted benzene showed a molecular ion (M+) peak at...
An unknown compound A has an empirical formula of c3h6o and a molecular ion peak in its mass spectrum at m/z 116. It also has no IR absorption at 3200-3600cm^-1 but shows a peak at 1740cm^-1. The H NMR spectra data of A is given below in table format. Use this information to answer questions a-d below. 9 (15 Points). An unknown compound A has empiricl rmula of C,HO and a molecular ion peak in its mass spectrum at an...
2. The H NMR spectrum of an unknown compound with the molecular formula CgH902 is provided below. The IR spectrum for this compound shows a large, broad peak at 3147 cm ? and a strong, sharp peak at 1645 cm-7. Provide a structure for this unknown. 2H 2H 10 98 HSP-06-318 ppm
The m/z of the M+ peak of an unknown is 146, and this peak is the base peak (i.e., the tallest peak). (See below mass spectrum of the unknown.) Combustion analysis data indicate 49.03% carbon and 2.74% hydrogen. The IR spectrum and 13C-NMR spectrum of this compound also were obtained and are shown below. Given this information, what is the name of this unknown molecule? MASS SPECTRUM 100 80 60 面 40 20 0.0 120 160 40 80 0.0 m/z...
Compound C has molecular formula C9H10O. The mass spectrum shows a parent ion (M+) peak at 134 and a base peak (largest peak) at 105 atomic mass units. The IR spectrum shows major signals at 3029, 2925, 2721, 1708, 1495, 1452, 1375, 1152, 745, and 699 cm-1. The 1H-NMR spectrum shows signals at 2.35 (singlet, 3H), 3.65 (doublet, 2H), 7.11 (doublet 2H), 7.18 (doublet, 2H), and 9.73 (triplet, 1H) ppm. The 13C-NMR spectrum shows signals at 21.1, 50.2, 128.7, 129.5,...
(c) Compound C has molecular formula C9H10O. The mass spectrum shows a parent ion (M+) peak at 134 and a base peak (largest peak) at 105 atomic mass units. The IR spectrum shows major signals at 3029, 2925, 2721, 1708, 1495, 1452, 1375, 1152, 745, and 699 cm-1. The 1H-NMR spectrum shows signals at 2.35 (singlet, 3H), 3.65 (doublet, 2H), 7.11 (doublet 2H), 7.18 (doublet, 2H), and 9.73 (triplet, 1H) ppm. The 13C-NMR spectrum shows signals at 21.1, 50.2, 128.7,...
yuLLIUI The IR and 'H-NMR spectrum of a compound with molecular formula 102 is provided below. What is its unsaturation number identify the key functional groups from the IR spectrum and explicitly state which stretches (with wavenumber) were used to identify them. Name or provide the condensed structure of a compound that will give rise to the above data (15 pts.) IR H-NMR-doublet - 79 ppm-2H, doublet - 7.3 ppm - 2H. quartet - 2.7 ppm - 2 triplet -1.2...
A compound of unknown structure gave the following spectroscopic data: Mass spectrum: M+ = 88.1 IR: 3600cm-1 1H NMR: 1.4 (2H, quartet, J=7Hz); 1.2 (6H, singlet); 1.0 (1H, singlet); 0.9 (3H, triplet, J=7Hz) 13C NMR: 74, 35, 27, 25 a. assuming that the compound contains C and H but may or may not contain O, give three possible molecular formulas. b. how many protons (H) does the compound contain? c. what functional group(s) does the compound contain? d. how many...
I am not understanding this assignment at all. Any assistance is very much appreciated. Mass Spectrum: Molecular Ion m/z value and structure of the Molecular Ion. Base Peak m/z value and structure of that ion One other significant peak m/z value and structure of that ion C13 NMR Spectrum-- Draw Structure of Compound on the C13 NMR spectrum and identify each signal with the appropriate Carbon. Proton NMR Spectrum-- Draw Structure of Compound on the Proton NMR spectrum and identify...
The infrared spectrum of an unknown compound with molecular formula C6H12O shows a strong, sharp peak at 1724 cm-1. From this and H-NMR spectrum shown below, deduce the structure of this compound.
The mass spectrum of compound A shows molecular ion peak at m/z 88. The IR spectrum of this compound has a broad peak between 3200 and 3550 cm-1. The 1H NMR spectrum of A shows the following peaks: a triplet at d 0.9, a singlet at d 1.1, one more singlet at d 1.15, and a quartet at d 1.6. The area ratio of these peaks is 3:6:1:2. The 13C NMR contains 4 signals. In the space below, propose a...