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Advanced Organic Chemistry: Mass spectrum of 1,4-dimethylbenzene
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The mass spectrum of 1,4-dimethylbenzene 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 1,4-dimethylbenzene
1,4-dimethylbenzene, C6H4(CH3)2
,C8H10,
Interpreting the fragmentation pattern of the mass spectrum of 1,4-dimethylbenzene [M]+ is the molecular ion peak (M) with an m/z of 106 corresponding to [C8H10]+, the original 1,4-dimethylbenzene molecule minus an electron, [C6H4(CH3)2]+. The small M+1 peak at m/z 107, corresponds to an ionised 1,4-dimethylbenzene molecule with one 13C atom in it i.e. an ionised 1,3-dimethylbenzene molecule of formula 13C12C7H10O Identifying the species giving the most prominent peaks (apart from M) in the fragmentation pattern of 1,4-dimethylbenzene.
Analysing and explaining the principal ions in the fragmentation pattern of the mass spectrum of 1,4-dimethylbenzene
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