Advanced Organic Chemistry: Mass spectrum of 1-bromo-2-chloroethane
The mass spectrum of 1-bromo-2-chloroethane
Doc Brown's Chemistry Advanced Level Pre-University Chemistry Revision Study Notes for UK IB KS5 A/AS GCE advanced A level organic chemistry students US K12 grade 11 grade 12 organic chemistry courses involving molecular spectroscopy analysing mass spectra of 1-bromo-2-chloroethane
1-bromo-2-chloroethane, C2H4BrCl, BrCH2CH2Cl
Interpreting the fragmentation pattern of the mass spectrum of 1-bromo-2-chloroethane
[M]+ is the molecular ion peak (M) with m/z values of 142, 144 and 146 corresponding to [C2H4BrCl]+, the original 1-bromo-2-chloroethane molecule minus an electron, [BrCH2CH2Cl]+.
The most abundant ion of the molecule under mass spectrometry investigation (1-bromo-2-chloroethane) is usually given an arbitrary abundance value of 100, called the base ion peak, and all other abundances ('intensities') are measured against it.
Identifying the species giving the most prominent peaks (apart from M) in the fragmentation pattern of 1-bromo-2-chloroethane.
Unless otherwise indicated, assume the carbon atoms in 1-bromo-2-chloroethane are the 12C isotope.
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