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- NMR Spectroscopy Structure & reasoningWhich of the following statements regarding NMR spectroscopy is incorrect?Which structure is in agraement with both of thasa R and H NMA data? IR, cm (Intensity)-2965 (strong), 1745 (strong), 1238 (strong) H NMR, ppm (splitting, H): 0.94 (doublet, 6H), 193 (multiplet, 1H), 2.05 (singlet, 3H), 3.8as (doublet, 2H) A. tor B. D. C.
- Analyze the CNMR spectrum below and identify the compoundWhich compound is correct for the given NMR spectrum? |(3) (2) (2) 2 1 PPM CN 1) 2) 3) Structure 1 O Structure 2 Structure 3Select the correct structure corresponding to the 'H NMR spectrum below. Integration values are shown above/adjacent to each signal. C4H¬OC1 1.50 1.00 1.01 II A) CH;CCHCH3 II В) CICH-CCH-CH, ČI C) CH;CH2CH2CI D) CH;CCH,CH,CI ОА В C
- Deaw the structure of the compound whose Sper spectroscopy data speef provided, сонго 2.6 ppm, 1H! sextet 2.1ppm, 34; singlet 1.7 -1.3 ppm, 2H, multipet 1.1 ppm, 3H, doublet 0.9 ppm, 34; triplet 3H ia) Predict the proton spectrum chemical shift, coupling and integration of the following molecule? vanillin C8H8O3 b) Also predict its cross-peaks in COSY and 1H-13C HETCOR?Analysis given IR, CNMR (written below), HNMR and mol weight: weight: 142g/mol C NMR: 4 uniques C's, small peak at 220ppm, medium peak at 50ppm, 2 strong peaks at 21 and 22ppm