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Advanced Organic Chemistry: Mass spectrum of 2,3-dimethylbutane
The mass spectrum of 2,3-dimethylbutane 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 2,3-dimethylbutane See also comparing infrared, mass, 1H NMR & 13C NMR spectra of the structural alkane isomers of C6H14
2,3-dimethylbutane C6H14
For more see The molecular structure, classification and naming of alkanes Interpreting the fragmentation pattern of the mass spectrum of 2,3-dimethylbutane [M]+ is the molecular ion peak (M) with an m/z of 86 corresponding to [C6H14]+, the original 2,3-dimethylbutane molecule minus an electron, [(CH3)2CHCH(CH3)2]+. The minute M+1 peak at m/z 87, corresponds to an ionised 2,3-dimethylbutane molecule with one 13C atom in it i.e. an ionised 2,3-dimethylbutane molecule of formula 13C12C5H14
Identifying the species giving the most prominent peaks (apart from M) in the fragmentation pattern of 2,3-dimethylbutane. The most abundant ion of the molecule under mass spectrometry investigation is usually given an arbitrary abundance value of 100, called the base ion peak, and all other abundances ('intensities') are measured against it.
Key words & phrases: image diagram on how to interpret and explain the mass spectrum of 2,3-dimethylbutane m/z m/e base peaks, image and diagram of the mass spectrum of 2,3-dimethylbutane, details of the mass spectroscopy of 2,3-dimethylbutane, low and high resolution mass spectrum of 2,3-dimethylbutane, prominent m/z peaks in the mass spectrum of 2,3-dimethylbutane, comparative mass spectra of 2,3-dimethylbutane, the molecular ion peak in the mass spectrum of 2,3-dimethylbutane, analysing and understanding the fragmentation pattern of the mass spectrum of 2,3-dimethylbutane, characteristic pattern of peaks in the mass spectrum of 2,3-dimethylbutane, relative abundance of mass ion peaks in the mass spectrum of 2,3-dimethylbutane, revising the mass spectrum of 2,3-dimethylbutane, revision of mass spectroscopy of 2,3-dimethylbutane, most abundant ions in the mass spectrum of 2,3-dimethylbutane, how to construct the mass spectrum diagram for abundance of fragmentation ions in the mass spectrum of 2,3-dimethylbutane, how to analyse the mass spectrum of 2,3-dimethylbutane, how to describe explain the formation of fragmented ions in the mass spectra of 2,3-dimethylbutane equations for explaining the formation of the positive ions in the fragmentation of the ionised molecule of 2,3-dimethylbutane recognising the base ion peak of 2,3-dimethylbutane interpreting interpretation the mass spectrum of 2,3-dimethylbutane Stick diagram of the relative abundance of ionised fragments in the fingerprint pattern of the mass spectrum of 2,3-dimethylbutane. Table of the m/e m/z values and formula of the ionised fragments in the mass spectrum of 2,3-dimethylbutane. The m/e m/z value of the molecular ion peak in the mass spectrum of 2,3-dimethylbutane. The m/e m/z value of the base ion peak in the mass spectrum of 2,3-dimethylbutane. Possible examples of equations showing the formation of the ionised fragments in 2,3-dimethylbutane. Revision notes on the mass spectrum of 2,3-dimethylbutane. Matching and deducing the structure of the 2,3-dimethylbutane molecule from its mass spectrum. Mass spectroscopy of aliphatic alkanes, mass spectra of 2,3-dimethylbutane, a structural isomer of molecular formula C6H14 Links associated with 2,3-dimethylbutane
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