Organic Chemistry: Mass spectrum of 2-methylbut-2-ene (2-methyl-2-butene)
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The mass spectrum of 2-methylbut-2-ene (2-methyl-2-butene) 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-methylbut-2-ene (2-methyl-2-butene) Use your mobile phone or ipad etc. in 'landscape' mode This is a BIG website, you need to take time to explore it Mass spectroscopy - spectra index
2-methylbut-2-ene C5H10
Interpreting the fragmentation pattern of the mass spectrum of 2-methylbut-2-ene (2-methyl-2-butene) [M]+ is the molecular ion peak (M) with an m/z of 70 corresponding to [C5H10]+, the original 2-methylbut-2-ene (2-methyl-2-butene) molecule minus an electron, [(CH3)2C=CHCH3]+. The small M+1 peak at m/z 71, corresponds to an ionised 2-methylbut-2-ene (2-methyl-2-butene) molecule with one 13C atom in it i.e. an ionised 2-methylbut-2-ene (2-methyl-2-butene) molecule of formula 13C12C4H10 Identifying the species giving the most prominent peaks (apart from M) in the fragmentation pattern of 2-methylbut-2-ene (2-methyl-2-butene).
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