A redetermination of the crystal and molecular structure of maltitol (4- O-α- d-glucopyranosyl- d-glucitol)

Abstract

The crystal structure of maltitol (4- O-α- d-glucopyranosyl- d-glucitol) was determined by X-ray diffraction at 95 K and refined to a final conventional parameter of R=0.032. The glucopyranosyl moiety adopts the 4 C 1 conformation. The conformation of the glucitol fragment exhibits a [ APP( AM)] bent-chain, sickle conformation of the carbon chain. This results in a nearly 1,3-parallel C//O interaction between C-13 and O-16. All hydroxyl groups are involved in a bifurcated entirely intermolecular hydrogen-bond network.