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Advanced Organic Chemistry: Mass spectrum of 2-iodobutane
Interpreting the mass spectrum of 2-iodobutane 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 2-iodobutane See also comparison of the infrared, mass, 1H NMR and 13C NMR spectra of the four isomers of C4H9I
2-iodobutane (sec-butyl iodide), C4H9I, CH3-CHI-CH2-CH3 Interpreting the fragmentation pattern of the mass spectrum of 2-iodobutane [M]+ is the parent molecular ion peak (M) with an m/z of 184 corresponding to [C4H9I]+, the original 2-iodobutane molecule minus an electron, [CH3CHICH2CH3]+.
The small M+1 peak at m/z 185, corresponds to an ionised 2-iodobutane molecule with one 13C atom in it i.e. an ionised 2-iodobutane molecule of formula [13C12C3H9I]+
The most abundant ion of the molecule under mass spectrometry investigation (2-iodobutane) 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 2-iodobutane. Unless otherwise indicated, assume the carbon atoms in 2-iodobutane are the 12C isotope. Some of the possible positive ions, [molecular fragment]+, formed in the mass spectrometry of 2-iodobutane.
Data table of some of the ions formed in the fragmentation pattern of the mass spectrum of 2-iodobutane
Key words & phrases: isomer of molecular formula C4H9I CH3CHICH2CH3 CH3CH2CHICH3 image diagram on how to interpret and explain the mass spectrum of 2-iodobutane m/z m/e base peaks, image and diagram of the mass spectrum of 2-iodobutane, details of the mass spectroscopy of 2-iodobutane, low and high resolution mass spectrum of 2-iodobutane, prominent m/z peaks in the mass spectrum of 2-iodobutane, comparative mass spectra of 2-iodobutane, the molecular ion peak in the mass spectrum of 2-iodobutane, analysing and understanding the fragmentation pattern of the mass spectrum of 2-iodobutane, characteristic pattern of peaks in the mass spectrum of 2-iodobutane, relative abundance of mass ion peaks in the mass spectrum of 2-iodobutane, revising the mass spectrum of 2-iodobutane, revision of mass spectroscopy of 2-iodobutane, most abundant ions in the mass spectrum of 2-iodobutane, how to construct the mass spectrum diagram for abundance of fragmentation ions in the mass spectrum of 2-iodobutane, how to analyse the mass spectrum of 2-iodobutane, how to describe explain the formation of fragmented ions in the mass spectra of 2-iodobutane equations for explaining the formation of the positive ions in the fragmentation of the ionised molecule of 2-iodobutane recognising the base ion peak of 2-iodobutane interpreting interpretation the mass spectrum of 2-iodobutane haloalkane halogenoalkane alkyl iodide sec-butyl iodide functional group Stick diagram of the relative abundance of ionised fragments in the fingerprint pattern of the mass spectrum of 2-iodobutane. Table of the m/e m/z values and formula of the ionised fragments in the mass spectrum of 2-iodobutane. The m/e m/z value of the molecular ion peak in the mass spectrum of 2-iodobutane. The m/e m/z value of the base ion peak in the mass spectrum of 2-iodobutane. Possible examples of equations showing the formation of the ionised fragments in 2-iodobutane. Revision notes on the mass spectrum of 2-iodobutane. Matching and deducing the structure of the 2-iodobutane molecule from its mass spectrum. Mass spectroscopy of aliphatic halogenoalkanes iodoalkanes, mass spectra of 2-iodobutane, an isomer of molecular formula C4H9I Links associated with 2-iodobutane
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