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6th May 2012 @ 17:49
Spectrum of (3E)-3-(4-Bromobenzylidene)-1,3-dihydro-2H-indol-2-one: [data]4182[/data] The mass spectrum of (3E)-3-(4-Bromobenzylidene)-1,3-dihydro-2H-indol-2-one has been obtained by positive electrospray ionization (ESI). The peak at m/e =300.1 confirms the molecular mass of this compound as the molecular ion gains a proton. Interpretation of MS Spectrum of (3E)-3-(4-Bromobenzylidene)-1,3-dihydro-2H-indol-2-one: [table][mrow]Peak Position[col]Diff. between molecular mass and peak[col]Suspected molecules or ions[col]Inference[/mrow][row]300.1[col]300-299 = 1[col](M+H)+[col]Molecular ion gains a proton, 79Br isotope present.[/row][row]302.1[col]302-299 = 3[col](M+H)+[col]Molecular ion gains a proton, 81Br isotope present. [/row][row]332.2[col]332-299 = 33[col](M+MeOH+H)+[col]Compound gains methanol and proton. [/row][/table]
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Spectrum of (3E)-3-(4-Bromobenzylidene)-1,3-dihydro-2H-indol-2-one