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Advanced Organic Chemistry: Mass spectrum of E-pent-2-ene, Z-pent-2-ene
The mass spectrum of E-pent-2-ene and Z-pent-2-ene 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 E-pent-2-ene and Z-pent-2-ene (comparing the mass spectra of cis/trans isomers of 2-pentene)
The mass spectrum of the stereoisomer E-pent-2-ene (trans-2-pentene)
The mass spectrum of the stereoisomer Z-pent-2-ene (cis-2-pentene) Pent-2-ene C5H10,
Z/cis-
Interpreting the fragmentation pattern of the mass spectrum of E-pent-2-ene and Z-pent-2-ene The fragmentation patterns are quite similar so the following notes apply to both spectra. [M]+ is the molecular ion peak with an m/z of 70 corresponding to [C5H10]+, the original E-pent-2-ene and Z-pent-2-ene molecule minus an electron, [CH3CH2CH=CHCH3]+. The small M+1 peak at m/z 71, corresponds to an ionised E-pent-2-ene and Z-pent-2-ene molecule with one 13C atom in it i.e. an ionised E-pent-2-ene and Z-pent-2-ene molecule of formula 13C12C4H10 Identifying the species giving the most prominent peaks (apart from M) in the fragmentation pattern of E-pent-2-ene and Z-pent-2-ene.
Key words & phrases:C5H10 image diagram on how to interpret and explain the mass spectrum of E-pent-2-ene and Z-pent-2-ene m/z m/e base peaks, image and diagram of the mass spectrum of E-pent-2-ene and Z-pent-2-ene, details of the mass spectroscopy of E-pent-2-ene and Z-pent-2-ene, low and high resolution mass spectrum of E-pent-2-ene and Z-pent-2-ene, prominent m/z peaks in the mass spectrum of E-pent-2-ene and Z-pent-2-ene, comparative mass spectra of E-pent-2-ene and Z-pent-2-ene, the molecular ion peak in the mass spectrum of E-pent-2-ene and Z-pent-2-ene, analysing and understanding the fragmentation pattern of the mass spectrum of E-pent-2-ene and Z-pent-2-ene, characteristic pattern of peaks in the mass spectrum of E-pent-2-ene and Z-pent-2-ene, relative abundance of mass ion peaks in the mass spectrum of E-pent-2-ene and Z-pent-2-ene, revising the mass spectrum of E-pent-2-ene and Z-pent-2-ene, revision of mass spectroscopy of E-pent-2-ene and Z-pent-2-ene, most abundant ions in the mass spectrum of E-pent-2-ene and Z-pent-2-ene, how to construct the mass spectrum diagram for abundance of fragmentation ions in the mass spectrum of E-pent-2-ene and Z-pent-2-ene, how to analyse the mass spectrum of E-pent-2-ene and Z-pent-2-ene, how to describe explain the formation of fragmented ions in the mass spectra of E-pent-2-ene and Z-pent-2-ene equations for explaining the formation of the positive ions in the fragmentation of the ionised molecule of E-pent-2-ene and Z-pent-2-ene recognising the base ion peak of E-pent-2-ene and Z-pent-2-ene interpreting interpretation the mass spectrum of E-pent-2-ene and Z-pent-2-ene mass spectra of the E/Z isomers of pent-2-ene cis/trans stereoisomers of 2-pentene mass spectra of cis pent-2-ene trans pent-2-ene cis 2-pentene trans 2-pentene C5H10 Links associated with E-pent-2-ene and Z-pent-2-ene
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