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6th May 2012 @ 17:49
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:

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.