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- Predict the masses and the structures of the most abundant fragments observed in the mass spectra of the following compounds. (a) cyclohexyl isopropyl ether (b) tert-butyl propyl amine1 (c) 2-Methyl-3-pentanol reacts with PCC to form compound F. (i) Draw the structure of F. (ii) In the mass spectrum, identify the m/z value of the molecular ion peak for compound F. (ii) Fragmentation of radical cation F exhibits two fragment ion peaks at m/z 57 and m/z 71. Propose the structures of these two fragments. (iv) Draw the resonance structure for each of the cation in (iii).Predict the masses and the structures of the most abundant fragments observed in the mass spectra of the followingcompounds.(a) 2-methylpentane (b) 3-methylhex-2-ene (c) 4-methylpentan-2-ol(d) 2-methyl-1-phenylpropane (e) cyclohexyl isopropyl ether [cyclohexyl¬O¬CH(CH3)2](f) CH3CH2CH2NHC(CH3)3tert@butyl propyl amine(g) C CH3Oacetophenone(g) *(h) 3-bromo-2-methylpentane
- An uknown organic compound with molecular formula C9H10O2 find DUI, draw the structure of the compound on both HNMR and 13CNMR spectra and assign all peaks, please see attached picture belowPredict the masses and the structures of the most abundant fragments observed in the mass spectra of the followingcompounds.(a) 2-methylpentaneii) How are the spectroscopic techniques useful in the structural elucidation of following organic molecules
- Given is the mass spectra of n-octane whre peaks are labeled accordingly. Give the letter that corresponds to the peak described below:Where on the x-axis in the mass spectrum will the M+ be at if themolecule whose structure is attached (C12H16O) is reduced by NaBD4followed by treatment with excess HCl in H2O and isolated?2,3-Dimethylbutane and 2,2-dimethylbutane have the same molecular ion in the mass spectrum, but only one of these isomers gives a significant fragment at m/z = 57. (a) Which isomer shows an intense peak at m/z = 57? (b) Propose a structure for the ion that gives rise to this peak. (c) The base peak in the mass spectrum of the other isomer occurs at m/z = 43. What ion gives rise to this peak?
- ClCH₂CO₂H, elucidate the following spectra bellowIdentify the following in the given IR Mass spectrum. Compound 1 Mass Spectroscopy: Interpretation of peaks:[References] The mass spectrum of octanoic acid, CH3(CH2)6COOH, exhibits a series of peaks differing by 14 amu at m/z 29, 43, 57, 71, 85, and 99. Draw the structure of the fragment resulting in the m/z 71 peak. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. • Do not use the square brackets tool in your answer. opy aste H,C earch 84%