Browsing by Subject pentaquadrupole mass spectrometry

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Showing results 1 to 12 of 12
PreviewIssue DateTitleAuthor(s)AdvisorType
2004Direct assignment of positional isomers by mass spectrometry: ortho, meta and para acyl and amidyl anilines and phenols and derivativesda Rocha, LW; Sparrapan, R; Augusti, R; Eberlin, MN-Artigo de periódico
2007R(Ar)O-N-2(+) vs. R(Ar)-N2O+: Are alkoxy-(aryloxy-)diazonium ions or alkyl-(aryl-)N-nitroso-onium ions formed in the gas-phase reactions of N2O with H+, Me+, Ph+, PhCH2+, Tr+ and PhCO+?Cabrini, LG; Benassi, M; Eberlin, MN; Okazaki, T; Laali, KK-Artigo de periódico
2003Quantitation Of isomeric ethyl pyridine mixtures by multivariate calibration applied to ion-molecule reaction/collision-induced dissociation triple-stage mass spectraZampronio, CG; Moraes, LAB; Eberlin, MN; Poppi, RJ-Artigo de periódico
2008Recognizing alpha-, beta- or gamma-substitution in pyridines by mass spectrometryCorilo, YE; Eberlin, MN-Artigo de periódico
1999Gas-phase chemistry of acylium ions. Seven-to-five ring contraction of 1,3-dioxepane and 1,3-dioxep-5-eneMoraes, LAB; Kotiaho, T; Eberlin, MN-Artigo de periódico
2001Gas-phase polar [4(+)+2] cycloaddition of cationic 2-azabutadienes with enol ethersMeurer, EC; Eberlin, MN-Artigo de periódico
2003Gas-phase polar [4(+)+2] cycloaddition with ethyl vinyl ether: a structurally diagnostic ion-molecule reaction for 2-azabutadienyl cationsMeurer, EC; Sparrapan, R; Eberlin, MN-Artigo de periódico
2006Formal gas-phase polar [4+1(+)] cycloaddition of ionized methylene to alpha-dicarbonyl compounds: synthesis of 2-unsubstituted 1,3-dioxolesMeurer, EC; Cabrini, LG; Gozzo, FC; Eberlin, MN-Artigo de periódico
2002Structurally diagnostic ion-molecule reactions: acylium ions with alpha-, beta- and gamma-hydroxy ketonesMoraes, LAB; Eberlin, MN-Artigo de periódico
2012Exploring the intrinsic polar [4?+?2+] cycloaddition reactivity of gaseous carbosulfonium and carboxonium ionsBasher, Muftah M.; Corilo, Yuri E.; Sparrapan, Regina; Benassi, Mario; Augusti, Rodinei; Eberlin, Marcos N.; Riveros, Jose M.-Artigo de periódico
2002Ortho effects in the dissociation of ionized N-chlorophenyl- and N-bromophenyl-2-aminobenzamidines: intramolecular aromatic substitution with cyclization to protonated 2-(2-aminophenyl)-1H-benzimidazolesMendes, MA; Rittner, R; Eberlin, MN; Suwinski, J; Szczepankiewicz, W-Artigo de periódico
1999Adducts and dimers of SFn+ (n = 1-5) with benzene, acetonitrile, and pyridine. Gas-phase generation and ab initio structures and thermochemistrySparrapan, R; Mendes, MA; Eberlin, MN-Artigo de periódico