2. The 13C NMR spectrum is shown below for the major product of the following reaction....
13C NMR 1. Propose a structure for the compound CsH12, with the following 13C NMR spectral data. 160 140 120 80 60 40 20 0 200 180 CDS-00-748 100 ppm 2. Propose a structure for the compound CaH;Br, with the following C NMR spectral data. 200 180 160 140 120 80 60 40 100 ppm 20 0 3. Propose a structure for the compound C H2O2, with the following "'C NMR spectral data. 200 180 160 140 120 30600 T...
Given the Cosey, HSQC and HMBC experiments assign the 1H NMR spectrum and 13C NMR spectrum signals of the compound. 1H peaks are labelled using lowercase letters and 13C peaks using uppercase. Be aware that the letters of the same peak does not necessarily refer to the position in the molecule. For example, peak a in the 1H and peak A in the 13C NMR are not necessarily assigned to the same number atom. The assignment of protons 4 and...
16. Propose a structure for a molecule of formula CaHsCl which gave the following 1H NMR spectrum. PPM 17. Propose a structure for a molecule whose mass spectrum shows a parent ion at m/z 148, an IR peak at 1680 cm'and gives the following H and 13C NMR spectra 3H зн 2H 2H 2H 3 5 2 7 6 4 PPM 160 140 180 60 220 200 20 0 120 100 80 40 PPM -
The 1H-NMR and 13C-NMR spectra of an unknown compound (formula C8H10) are shown below. Draw the structure of the unknown compound. The total integration of the peaks at around 7 ppm is 4. The integration of the peak at around 2 ppm is 6. 7 6 5 4 3 ppm TTTTTTTTTTTTTTTT 200 180 160 140 120 100 80 60 40 20 0 pom CH3 Create OscerSketch Answer 8 Incorrect: Answer has an incorrect structure.
Please help with identifying this compound? Need to draw the structure 14.01 Mass Spectrum 13C-NMR Spectrum CHO M**= 60 Relative Intensity 10 15 20 25 30 40 45 50 35 m/z 55 60 200 180 160 140 120 80 60 40 20 100 ppm IR Spectrum 1H-NMR Spectrum o Chem. shift Ret area Porto age are 3.5822.00 226 157 094 Singlet (hare some into the rest 1.00 2.00 3.00 1466 3333 2963 11 10 Ppm
Use the numbered Below find the 13C and a DEPT 135 NMR spectrum of Primidone. 6 10 3 H2c"N 1 H 012 11 structure and assign the peaks to the spectrum 60 40 20 120 100 80 140 180 160
Deduce the following structure of the compound given their IR, H1 NMR, 13C NMR spectra, and assign IR functional group absorptions and assign the structure's protons and carbons to their respective spectral resonances. Compound 6 1756 IR Spectrum uid Sm) 15820 4000 3000 2000 1600 1200 800 V (cm) 100 55 Mass Spectrum 71 80 70 60 No significant UV M158 (1%) absorption above 220 nm C&H140s 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (50.0 MHz,...
carrot fragments H2O, room temp 애 Below is the predicted 13C NMR spectrum for either the starting material or the product of the reaction you carried out. Which is it? With reference to key 13C NMR signals, explain your answer. 220 200 180 160 140 120 100 80 60 40 20 0
28. A compound with the molecular formula of C3H.ON shows 1H NMR and 13C NMR as below. Give the most plausible structure in the box. 2H, 3 peaks 2H, 3 peaks 1H, 1 peak PPM 180 160 140 120 100 80 60 40 20 PPM
Find the compounds using NMR and IR: Problem 85 IR Spectrum (liquid fiim) 1720 1600 2000 v (cm) 800 3000 1200 4000 100 Mass Spectrum 73 140 138 80 No significant UV 60 115 absorption above 220 nm 40 M 194/196 (1% ) 20 CeH1102Br 120 160 200 240 280 40 80 m/e 13C NMR Spectrum (50.0 MHz, CDCI, solution) DEPT CH, Cн, сн! solvent proton decoupled 8 (ppm) 160 120 40 200 80 H NMR Spectrum (200 MHz, CDCI,...