We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Infrared diagnostic of the conformational change of methylated β-glucose bound to Li<sup>+</sup> upon ligand addition.
- Authors
Hernandez, Oscar Alba; Steinmetz, Vincent; Maître, Philippe
- Abstract
Infrared photodissociation spectroscopy in combination with tandem mass spectrometry (MS/MS) has been shown to provide diagnostic structural information on oligosaccharides. An investigation of the conformation of methylated β-glucose ionized with an alkali metal cation, and subsequently complexed by an ancillary ligand, is presented. On the basis of quantum chemical calculations, an interpretation of the variation of the IRMPD spectrum of the methylated β-glucose complexes is proposed. Two competing structural motifs are found to be at play, the energy ordering resulting from a subtle balance between the maximization of the coordination of the metal cation and intra-sugar hydrogen bonding.
- Subjects
TANDEM mass spectrometry; ALKALI metals; OLIGOSACCHARIDES; INFRARED spectroscopy; HYDROGEN bonding
- Publication
ARKIVOC: Online Journal of Organic Chemistry, 2020, Vol 2020, p89
- ISSN
1551-7004
- Publication type
Article
- DOI
10.24820/ark.5550190.p011.138