Ribofuranose crystal structure

The crystal structures of the important ribofuranoses or 2-deoxy-ribofuranoses have not been determined, since these forms are in the minority with respect to the pyranoses in solution. There are numerous examples, however, in the crystal structures of the nucleosides and nucleotides. Those that contain the ribofuranose moieties quite commonly display vicinal 0(2 )H 0(3 ) or O(30H 0(2 ) intramolecular hydrogen bonding as the minor component of a three-center bond. This type of hydrogen bonding is described in Part IB, Chapter 9. 

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