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Titolo:
BEAM-INDUCED REACTION BETWEEN METANITROBENZYL ALCOHOL AND DIPYRIDOCYANINE DYES IN LIQUID-SECONDARY-ION MASS-SPECTROMETRY
Autore:
LEMIRE SW; ZHAO XD; TOLBERT LM; BUSCH KL;
Indirizzi:
GEORGIA INST TECHNOL,SCH CHEM & BIOCHEM ATLANTA GA 30332 GEORGIA INST TECHNOL,SCH CHEM & BIOCHEM ATLANTA GA 30332
Titolo Testata:
Journal of the American Society for Mass Spectrometry
fascicolo: 11, volume: 5, anno: 1994,
pagine: 1017 - 1020
SICI:
1044-0305(1994)5:11<1017:BRBMAA>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
FAST-ATOM-BOMBARDMENT; NITROBENZYL ALCOHOL; REDUCTION PROCESSES; GLYCEROL; IONIZATION; SPECTRA;
Tipo documento:
Note
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
S.W. Lemire et al., "BEAM-INDUCED REACTION BETWEEN METANITROBENZYL ALCOHOL AND DIPYRIDOCYANINE DYES IN LIQUID-SECONDARY-ION MASS-SPECTROMETRY", Journal of the American Society for Mass Spectrometry, 5(11), 1994, pp. 1017-1020

Abstract

Analyses of cationic dipyridocyanine dyes by liquid-secondary-ion mass spectrometry in a liquid matrix of meta-nitrobenzyl alcohol (mNBA) provide evidence for beam-induced addition reactions between the samplemolecule (C) and the mNBA solvent. The ionic products of these addition reactions formally correspond to [C + mNBA - O-2](+), [C + mNBA - O-2 - H](+); and [C + mNBA - O-2 - 2H](+). Initial loss of H from the adduct ion extends the conjugation of the adduct into the mNBA ring structure, whereas the final loss of hydrogen is thought to be promulgated by the formation of a benzylic radical stabilized through resonance with the pi-electron system of the nitrobenzyl alcohol. Alternatively,two hydrogens may be lost from the alcohol functionality to form an aldehyde.

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Documento generato il 23/01/20 alle ore 18:54:16