Cellobiose, trans conformation

In crystalline or solvated phases, the situation is quite different fi om the gas phase several studies have established that both lactose and cellobiose adopt a trans conformation about their glycosidic linkages [88-92]. Despite this, single hydration of the disaccharides (in the gas phase) does not affect their preference for... 

Figure 16-8. Schematic diagram of the hydroxymethyl conformations at the C-6 position, namely the orientation of the C6-06 bond, gauche-trans (gt), trans-gaudie (tg) or gauche-gauche (gg) with a cellobiose unit...

Fig.3. Repeating the "cis (=maltose) conformation results in a helical structure while the "trans" (=cellobiose) leads to a zig-zag chain.

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