HOME PAGE * KS3 SCIENCES * GCSE BIOLOGY CHEMISTRY PHYSICS * ADVANCED LEVEL CHEMISTRY
SPECTROSCOPY INDEXES * All Advanced Organic Chemistry Notes * [SEARCH BOX]
Advanced Organic Chemistry: Mass spectrum of 2-bromo-2-methylpropane
Interpreting the mass spectrum of 2-bromo-2-methylpropane (tert-butyl bromide) 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-bromo-2-methylpropane See also comparing infrared, mass, 1H NMR & 13C NMR spectra of 4 halogenoalkane isomers of C4H9Br
2-bromo-2-methylpropane (tert-butyl bromide), C4H9Br, (CH3)3C-Br Interpreting the fragmentation pattern of the mass spectrum of 2-bromo-2-methylpropane Theoretically, [M]+ is the parent molecular ion peaks of M and M+2 with an m/z of 136 and 138. However, these molecular ions, [C4H9Br]+, are so unstable, they fragment immediately to give, predominantly, the m/z 57 ion, [C4H9]+, whose formation is discussed in more detail below along with a table of ions formed in the fragmentation pattern of 2-bromo-2-methylpropane. Bromine consists of two isotopes, 79Br and 81Br in roughly equal proportions, therefore any molecular ion or fragment containing a bromine atom will show up as a double peak of similar height (abundance) two mass units apart e.g. m/z ions 121 and 123 and the very tiny molecular ion peaks of m/z values 136 and 138 (but still of ~equal height!) in the mass spectrum of 2-bromo-2-methylpropane. The most abundant ion of the molecule under mass spectrometry investigation (2-bromo-2-methylpropane) 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-bromo-2-methylpropane. Unless otherwise indicated, assume the carbon atoms in 2-bromo-2-methylpropane are the 12C isotope. Some of the possible positive ions, [molecular fragment]+, formed in the mass spectrometry of 2-bromo-2-methylpropane.
Data table of some of the ions formed in the fragmentation pattern of the mass spectrum of 2-bromo-2-methylpropane
Key words & phrases: C4H9Br (CH3)3CBr image diagram on how to interpret and explain the mass spectrum of 2-bromo-2-methylpropane m/z m/e base peaks, image and diagram of the mass spectrum of 2-bromo-2-methylpropane, details of the mass spectroscopy of 2-bromo-2-methylpropane, low and high resolution mass spectrum of 2-bromo-2-methylpropane, prominent m/z peaks in the mass spectrum of 2-bromo-2-methylpropane, comparative mass spectra of 2-bromo-2-methylpropane, the molecular ion peak in the mass spectrum of 2-bromo-2-methylpropane, analysing and understanding the fragmentation pattern of the mass spectrum of 2-bromo-2-methylpropane, characteristic pattern of peaks in the mass spectrum of 2-bromo-2-methylpropane, relative abundance of mass ion peaks in the mass spectrum of 2-bromo-2-methylpropane, revising the mass spectrum of 2-bromo-2-methylpropane, revision of mass spectroscopy of 2-bromo-2-methylpropane, most abundant ions in the mass spectrum of 2-bromo-2-methylpropane, how to construct the mass spectrum diagram for abundance of fragmentation ions in the mass spectrum of 2-bromo-2-methylpropane, how to analyse the mass spectrum of 2-bromo-2-methylpropane, how to describe explain the formation of fragmented ions in the mass spectra of 2-bromo-2-methylpropane equations for explaining the formation of the positive ions in the fragmentation of the ionised molecule of 2-bromo-2-methylpropane recognising the base ion peak of 2-bromo-2-methylpropane interpreting interpretation the mass spectrum of 2-bromo-2-methylpropane tert-butyl bromide alkyl halide haloalkane functional group alkyl bromide bromoalkane Stick diagram of the relative abundance of ionised fragments in the fingerprint pattern of the mass spectrum of 2-bromo-2-methylpropane. Table of the m/e m/z values and formula of the ionised fragments in the mass spectrum of 2-bromo-2-methylpropane. The m/e m/z value of the molecular ion peak in the mass spectrum of 2-bromo-2-methylpropane. The m/e m/z value of the base ion peak in the mass spectrum of 2-bromo-2-methylpropane. Possible examples of equations showing the formation of the ionised fragments in 2-bromo-2-methylpropane. Revision notes on the mass spectrum of 2-bromo-2-methylpropane. Matching and deducing the structure of the 2-bromo-2-methylpropane molecule from its mass spectrum. Mass spectroscopy of aliphatic halogenoalkanes bromoalkanes alkyl bromides, mass spectra of 2-bromo-2-methylpropane, an isomer of molecular formula C4H9Br Links associated with 2-bromo-2-methylpropane
|
Doc Brown's Chemistry |
|
![]() |
jobs and opportunities for teenagers best high street shop or best online deals currys pc consumer products computer deals world argos amazon internet deals for students john lewis hobbies and leisure products for teen years dell acer samsung raycon best selling footwear fashion bargains for teenagers bose sony asus huawei HP microsoft in-ear headphones earbuds downloadable games ipad desktop computer laptop computer for school college university students educational college university course opportunities for teenagers latest video games consoles apple iphone online download video games for teenagers google high end mobile phones cell phone bargain health products and advice for teenagers smartphone xiaomi computer laptops desktop pc deals for students oppo high tech products jewellery for teenage girls latest fashion in trainers personal care and beauty products for teenagers latest fashion in shoes best selling fashion clothes clothing bargains for teenagers latest fashion in mobile phones cell phones Nintendo games consoles internet music film entertainment deals subscriptions advice on teenage health conditions