N-Alkyl-N-tosyl amino acid esters were ionized by fast atom bombardment (FAB) in a nitrobenzyl alcohol matrix through oxidative processes leading to molecular radical cations (M(+.)). The addition to the matrix of Cu-II salts induces the ionization through proton attachment whereby [M + H](+) are exclusively displayed by the positive-ion FAB spectra. The formation of electron donor-acceptor complexes between the analytes and the matrix lowers the critical energy for the ionization by one-electron removal from the substrates.

Formation by Fast Atom Bombardment of molecular radical cations by electron donor-acceptor complexes from tosylated amino acid esters

ATHANASSOPOULOS C;NAPOLI A;SICILIANO, Carlo;SINDONA, Giovanni
1995

Abstract

N-Alkyl-N-tosyl amino acid esters were ionized by fast atom bombardment (FAB) in a nitrobenzyl alcohol matrix through oxidative processes leading to molecular radical cations (M(+.)). The addition to the matrix of Cu-II salts induces the ionization through proton attachment whereby [M + H](+) are exclusively displayed by the positive-ion FAB spectra. The formation of electron donor-acceptor complexes between the analytes and the matrix lowers the critical energy for the ionization by one-electron removal from the substrates.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11770/142663
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