Research Article

On the Primary Ionization Mechanism(s) in Matrix-Assisted Laser Desorption Ionization

Table 2

Dissociation energy for the process described in Scheme 3.

Dimers (eV) (eV) (eV)

Benzoic acid3.693.683.50
2,5-dihydroxybenzoic acid3.55
4-methoxybenzoic acid3.43
4-nitrobenzoic acid3.35
4-N,N-dimethylaminobenzoic acid3.42