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Cited by 214 publications
(187 citation statements)
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“…There is general agreement with earlier theoretical studies of the purine bases [36][37][38][39][40] and of cytosine [34,41]. The measured proton affinity of aniline is 874 kJ/mol (208.8 [42] and 209.5 kcal/mol [43] )and experimental [44] and theoretical [45] studies showed almost equal propensity for protonation at the amino-N-and the para-C-atoms.…”
Section: Site Of Protonation and Mode Of Initial Fragmentationsupporting
confidence: 88%
“…There is general agreement with earlier theoretical studies of the purine bases [36][37][38][39][40] and of cytosine [34,41]. The measured proton affinity of aniline is 874 kJ/mol (208.8 [42] and 209.5 kcal/mol [43] )and experimental [44] and theoretical [45] studies showed almost equal propensity for protonation at the amino-N-and the para-C-atoms.…”
Section: Site Of Protonation and Mode Of Initial Fragmentationsupporting
confidence: 88%
“…Positive charges in ESI mass spectra of DNA are thought to reside on the nucleobases [30]. The proton affinities of dA, dC, and dT are 233.6, 233.2, and 224.9 kcal/mol, respectively.…”
Section: Discussionmentioning
confidence: 99%
“…While the proton affinities of the most basic sites of the major nucleobases, deoxyribonucleosides, and deoxyribonucleotides have been bracketed, gas phase acidities of the nucleobases are largely unknown [15][16][17][18]. Our studies have also been motivated by our interest in two pyrimidine-related enzymes, uracil-DNA glycosylase (UDGase) and orotidine 5'-monophosphate decarboxylase (ODCase).…”
mentioning
confidence: 99%