Which one of the following is not correct for the ESI spectrum of acebutolol? Select one: a. m/z at 318 corresponds to isotopic ion due to 18 atoms of 12C b. Molecular weight of the acebutolol is 337.2 gr C. + charged species are formed in acidic solution O d. There is not extensive fragmentation of the protonated ion e. m/z at 319.2 corresponds to isotopic ion due to 18 atoms of 13C O O

Which one of the following is not correct for the ESI spectrum of acebutolol? Select one: a. m/z at 318 corresponds to isotopic ion due to 18 atoms of 12C b. Molecular weight of the acebutolol is 337.2 gr C. + charged species are formed in acidic solution O d. There is not extensive fragmentation of the protonated ion e. m/z at 319.2 corresponds to isotopic ion due to 18 atoms of 13C O O

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter12: Structure Determination: Mass Spectrometry And Infrared Spectroscopy

Section12.SE: Something Extra

Problem 48AP: The infrared spectrum of the compound with the mass spectrum shown below lacks any significant...

See similar textbooks

Similar questions

The infrared spectrum of the compound with the mass spectrum shown below lacks any significant absorption above 3000 cm-1. There is a prominent peak near 1740 cm-1 and another strong peak near 1200 cm-1. Propose a structure consistent with the data.
The low-resolution mass spectrum of an unknown analgesic X had a molecular ion of 151. Possible molecular formulas include C7H5NO3, C8H9NO2, and C10H17N. Highresolution mass spectrometry gave an exact mass of 151.0640. What is the molecular formula of X?
1. Using NMR integral ratios of peaks from sesamin and episesamin in the 1H NMR spectrum of the epimerized sample attached, calculate the actual ratio of sesamin to episesamin in the epimerized sample a. state the ppm values of the two NMR peaks you compared -sesamin 1H NMR peak __________ppm -episesamin 1H NMR peak _________ppm b. please show the calculation for the actual ratio of sesamin to episesamin
Is the structure on the bottom right corner of the FTIR photo correct for the mass spectrum, FTIR, and a proton NMR that has a doublet with an integration of 3 hydrogens at 7.25 ppm, a triplet with an integration of 1 hydrogen at 7.41 ppm, and a singlet with an integration of 6 hydrogen at 2.6 ppm? If not, what is the correct structure?
analyse the spectra and write the name of the compound. Also write brief explanation for each spectra verifying the part of you suggested molecule (For IR indicate the functional groups which matches the peaks, for mass indicate the fragments, for CNMR and HNMR indicate which peak to what).(maximum character: 60000)
Consider isomeric alcohols A and B and mass spectra [1] and [2].(a) Label the molecular ion and base peak in each spectrum. (b) Use the fragmentation patterns to determine which mass spectrum corresponds to isomer A and which corresponds to isomer B.
Mass spectra of butylcyclopentane and tert-butylcyclopentane were acquired. Spectrum A exhibited significant mass peaks at m/z values of 126, 97, 83, 69, 55, and 41. Spectrum B exhibited significant peaks at m/z values of 111, 69,57, and 41. Match each spectrum with its compound.
analyse the spectra and write the name of the compound. Also write brief explanation for each spectra verifying the part of you suggested molecule (For IR indicate the functional groups which matches the peaks, for mass indicate the fragments, for CNMR and HNMR indicate which peak to what?
Given your knowledge of 1H NMR, fill in a table like the one shown below for the vanillin that was obtained using deuterochloroform as the solvent and tetremethylsilane for the chemical shift standard. Peak Label Chemical Shift (δ) Integration Splitting Pattern Assignment A 7.8 2 Multiplet B 6.7 2 Multiplet C 4.2 2 Quartet D 3.0 6 Singlet E 1.3 3 Triplet
1. Consider the IR and MS spectra of a partially unknown compound. a) Suggest a fragmentation pattern to explain the formation of the base peak. b) Determine the structure of the compound. Indicate how the MS and IR spectra supports your suggested structure.
For the compounds below give the 1H NMR data (chemical shift, integration and multiplicity) I appreciate the help.
Butanal and methylpropanal give slightly different mass spectra. Both give a molecular ion peak at m/z = 72, but butanal gives four other peaks whereas methylpropanal only gives three. State the species responsible for the four other peaks in the mass spectrum of butanal and write equations to show their formation from the molecular ion.