M peak at m/z 228, M + 2 peak at m/z 230 (~1:1 intensity) IR: 3400 – 2500 cm1 (intense, broad), 1710 cm1 (intense, sharp) 13C-NMR: there are seven signals 3H, doublet 2H, m 2H, m 1H, quartet 1H, singlet 12 10 8 6 4 2 PPM 00

M peak at m/z 228, M + 2 peak at m/z 230 (~1:1 intensity) IR: 3400 – 2500 cm1 (intense, broad), 1710 cm1 (intense, sharp) 13C-NMR: there are seven signals 3H, doublet 2H, m 2H, m 1H, quartet 1H, singlet 12 10 8 6 4 2 PPM 00

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter20: Molecular Mass Spectrometry

Section: Chapter Questions

Problem 20.11QAP

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Concept explainers

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

A compound has the following data: (see image )

Please show how to draw structure using skeletal structure only.

M peak at m/z 228, M + 2 peak at m/z 230 (~1:1 intensity)
IR: 3400 – 2500 cm1 (intense, broad), 1710 cm1 (intense, sharp)
13C-NMR: there are seven signals
3H, doublet
2H, m
2H, m
1H, quartet
1H, singlet
12
10
8
4
PPM

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