Table 2. Key Hydrogen Bonding Interactions and Distances for Enantiomer Arabinose, Racemic Arabinose, and Enantiomer Xylose.

compound	intermolecular H-bonds between hydroxyl groups bonding distance (Å)	intermolecular H-bonds O to OH bonding distance (Å)
l-arabinose	1.899, 1.972, 2.171	1.951
dl-arabinose	1.880, 1.957, 1.987	1.880
d-xylose	1.808, 1.874, 1.918	1.959