Complexation of transition-metal ions, SnII, PbII and Al III with nucleobase-substituted polyethers and dissociation of adduct ions studied by fast atom bombardment mass spectrometry

Saraswathi, Mandapati; Miller, Jack M.

doi:10.1039/a605354h

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…The nature of bonding of Pb 2+ with polyfunctional molecules in the gas-phase is not well described, but this behaviour is in agreement with what was observed by Saraswathi et al in their study concerning the interaction of Pb 2+ ions with nucleobase-substituted polyethers. 25 Nevertheless, unlike these authors, we do not observe metal-chelated species involving counter-ions. The MIKE spectrum of the 107 Ag adduct of D-glucose (1) is given in Figure 2(a).…”

Section: Copper Cationizationcontrasting

confidence: 96%

Gas-Phase Reactivity of Glycosides and Methyl Glycosides with Cu⁺, Ag⁺ and Pb²⁺ Ions by Fast-Atom Bombardment and Tandem Mass Spectrometry

Salpin

Boutreau

Haldys

et al. 2001

Eur J Mass Spectrom (Chichester)

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The analytical potential of the complexation of three isomeric monosaccharides (D-glucose, D-galactose, D-fructose)and two methyl glycosides ( O-methyl-α-D-glucose and O-methyl-β-D-glucose)by three metal ions, Ag+, Cu+ and Pb2+, has been investigated by fast-atom bombardment (FAB)ionization and tandem mass spectrometry. Our results have shown that the unimolecular reactivity of Ag+ complexes allows the characterization of the C(4)stereochemistry of the pyranose ring, whereas a distinction between D-glucose and D-fructose is not achieved. On the other hand, each of the three [Cu + monosaccharide]+ complexes exhibits specific dissociation patterns. We have also observed that Pb2+ ions induce the richest reactivity and are of particular interest for the identification of the three isomers. Finally, this study has demonstrated that the stereochemistry of the anomeric center of O-methyl-D-glucose is easily determined by reaction with Ag+ or Pb2+ ions. Several mechanisms are proposed to account for the main fragmentations of cationized glucose.

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Section: Copper Cationizationcontrasting

confidence: 96%

Gas-Phase Reactivity of Glycosides and Methyl Glycosides with Cu⁺, Ag⁺ and Pb²⁺ Ions by Fast-Atom Bombardment and Tandem Mass Spectrometry

Salpin

Boutreau

Haldys

et al. 2001

Eur J Mass Spectrom (Chichester)

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“…In the FAB target in this experiment, [Ba 2+ ] < [Cl - ] ≪ [G], so it is not unreasonable that Ba 2+ reacts with glycerol in solution as well as Cl - in order to lower its charge. Similar systems have been studied by Miller …”

Section: Resultsmentioning

confidence: 75%

Analysis of Transition-Metal Compounds Containing Tetrathiafulvalene Phosphine Ligands by Fast Atom Bombardment Mass Spectrometry: Limitations and the Development of Matrix Additives for the Desorption of Multiply Charged Complexes

et al. 1998

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A series of new complexes incorporating the functionalized tetrathiafulvalene (TTF) ligands ortho-(CH 3 ) 2 (P(C 6 H 5 ) 2 ) 2 -TTF (o-P2) and (P(C 6 H 5 ) 2 ) 4 TTF (P4) have been prepared and studied by fast atom bombardment mass spectrometry (FABMS). The mononuclear o-P2 complexes [M(o-P2) 2 ](BF 4 ) 2 (M ) Fe, Pd, Pt) and [Co(o-P2) 2 (NCCH 3 ) 2 ](BF 4 ) 2 were synthesized from reactions of the free ligand with the fully solvated BF, was produced by reacting the free ligand with PtCl 2 (NC 7 H 5 ) 2 followed by abstraction of the chlorides with AgBF 4 in acetonitrile.Reaction of [Pd(NCCH 3 )](BF 4 ) 2 with 1 equiv of P4 produces the polynuclear compound formulated as [Pd(P4)] n (BF 4 ) 2n which was characterized by infrared, 1 H, and 31 P{ 1 H} NMR spectroscopies and elemental analysis. The use of FABMS in this study was undertaken in order to elucidate the chemical options of multiply charged cations in the desorption process from the liquid matrix to the gas phase. The use of additives to the FAB matrix (m-nitrobenzyl alcohol) was demonstrated for the P4 complexes which do not give spectra in this medium due to a high positive net charge. The addition of triflic acid (HOTf or CF 3 SO 3 H) to the FAB matrix/analyte solution was shown to assist in the MS analysis of cationic complexes with up to six charges and a mass range up to m/z 4000. When HOTf is added, bound OTfanions are formed and are attached to the cationic complex, lowering the net charge to +1. The method of using matrix additives as opposed to chemically synthesizing the OTfcompounds is a convenient in situ method which produces species that are capable of being analyzed by FABMS.

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Complexation of transition-metal ions, SnII, PbII and Al III with nucleobase-substituted polyethers and dissociation of adduct ions studied by fast atom bombardment mass spectrometry

Cited by 2 publications

References 15 publications

Gas-Phase Reactivity of Glycosides and Methyl Glycosides with Cu⁺, Ag⁺ and Pb²⁺ Ions by Fast-Atom Bombardment and Tandem Mass Spectrometry

Gas-Phase Reactivity of Glycosides and Methyl Glycosides with Cu⁺, Ag⁺ and Pb²⁺ Ions by Fast-Atom Bombardment and Tandem Mass Spectrometry

Analysis of Transition-Metal Compounds Containing Tetrathiafulvalene Phosphine Ligands by Fast Atom Bombardment Mass Spectrometry: Limitations and the Development of Matrix Additives for the Desorption of Multiply Charged Complexes

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Complexation of transition-metal ions, SnII, PbII and Al III with nucleobase-substituted polyethers and dissociation of adduct ions studied by fast atom bombardment mass spectrometry

Cited by 2 publications

References 15 publications

Gas-Phase Reactivity of Glycosides and Methyl Glycosides with Cu+, Ag+ and Pb2+ Ions by Fast-Atom Bombardment and Tandem Mass Spectrometry

Gas-Phase Reactivity of Glycosides and Methyl Glycosides with Cu+, Ag+ and Pb2+ Ions by Fast-Atom Bombardment and Tandem Mass Spectrometry

Analysis of Transition-Metal Compounds Containing Tetrathiafulvalene Phosphine Ligands by Fast Atom Bombardment Mass Spectrometry: Limitations and the Development of Matrix Additives for the Desorption of Multiply Charged Complexes

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Gas-Phase Reactivity of Glycosides and Methyl Glycosides with Cu⁺, Ag⁺ and Pb²⁺ Ions by Fast-Atom Bombardment and Tandem Mass Spectrometry

Gas-Phase Reactivity of Glycosides and Methyl Glycosides with Cu⁺, Ag⁺ and Pb²⁺ Ions by Fast-Atom Bombardment and Tandem Mass Spectrometry