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6th May 2012 @ 18:08
MS Spectrum of (3E)-3-(4-Methoxybenzylidene)-1,3-dihydro-2H-indol-2-one: [data]4184[/data] The mass spectrum of (3E)-3-(4-Methoxybenzylidene)-1,3-dihydro-2H-indol-2-one has been obtained by positive electrospray ionization (ESI). The peak at m/e = 252.2 confirms the molecular mass of this compound as the molecular ion gains a proton. Interpretation of MS Spectrum of (3E)-3-(4-Methoxybenzylidene)-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]252.2[col]252 – 251 = 1[col](M+H)+[col]Compound gains a proton.[/row][row]293.2[col]293 - 251 = 42[col](M+H+Na+H2O)+ Na(23), H2O (18)[col]Sodium & H+ ions and water molecule attach to the compound.[/row][row]315.2[col]315-251=64[col](M+HCOOH+H2O)+[col]Molecular ion gains formic acid and water molecule.[/row][/table]
Attached Files
MS Spectrum of 3-(3-Methoxyphenyl) 1, 3-Dihydroindol-2H-one