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Impact of the leaving group on the structure of B‐type ions. Infrared spectra of glycosyl cations generated from a) β‐thioethyl (1, SEt), b) β‐ (2) and c) α‐trichloroacetimidate (3, TCAI) precursors of 4,6‐di‐O‐acetyl‐2,3‐di‐O‐benzyl‐d‐galactopyranoside. Regardless of the chemical type and anomericity of the leaving group, similar IR signatures are obtained. Ac: acetyl; Bn: benzyl; LG: leaving group, DTCCSHe: Drift‐tube collision cross section in He.
