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6th May 2012 @ 16:40
MS Spectrum of (3E)-3-(4-Chlorobenzylidene)-1,3-dihydro-2H-indol-2-one: [data]4180[/data] The mass spectrum of (3E)-3-(4-Chlorobenzylidene)-1,3-dihydro-2H-indol-2-one has been obtained by positive electrospray ionization (ESI). The peak at m/e =256.2 confirms the molecular mass of this compound as the molecular ion gains a proton. Interpretation of MS Spectrum of (3E)-3-(4-Chlorobenzylidene)-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]258.2[col]258-255=3[col](M+H)+ H(1)[col]Molecular ion gains a proton, 37Cl isotope present.[/row][row]259.2[col]259-255=4[col](M+He)+ He(4)[col]Compound gains helium atom [/row][row]288.2[col]288-255=33[col](M+MeOH)+ MeOH(32)[col]Molecular ion gains methanol, 13C isotope present.[/row][row]290.2[col]290-255=35[col](M+H2O+NH3)+ H2O(18), NH3(17)[col]Molecular ion gains water and ammonia molecules[/row][row]299.2[col]299-255=44[col](M+CO2)+ CO2(44)[col]Compound gains carbon (IV) oxide molecule.[/row][row]297.2[col]297-255=42[col](M+Na+H2O)+ Na(23), H2O(18)[col]Molecular ion gains water and sodium atom[/row][row]273.2[col]273-255=18[col](M+H2O)+[col]Compound gains water [/row][/table]
Attached Files
MS Spectrum of (3E)-3-(4-Chlorobenzylidene)-1,3-dihydro-2H-indol-2-one