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Spectroscopic Method: MS-ESI
Substituent: Bromo
Spectrum of (3E)-3-(4-Bromobenzylidene)-1,3-dihydro-2H-indol-2-one:
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:
Substituent: Bromo
Spectrum of (3E)-3-(4-Bromobenzylidene)-1,3-dihydro-2H-indol-2-one:
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:
| Peak Position | Diff. between molecular mass and peak | Suspected molecules or ions | Inference |
| 300.1 | 300-299 = 1 | (M+H)+ | Molecular ion gains a proton, 79Br isotope present. |
| 302.1 | 302-299 = 3 | (M+H)+ | Molecular ion gains a proton, 81Br isotope present. |
| 332.2 | 332-299 = 33 | (M+MeOH+H)+ | Compound gains methanol and proton. |