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Transformable H-bonds and conformation in compressed glucose.


ABSTRACT: In response to external stimuli the α-d-glucose molecule extensively transforms its H-bonding pattern and conformation. High-pressure reverses the linear compressibility and changes the hierarchy of intermolecular interactions in crystalline α-d-glucose. At 5.40(2) GPa it undergoes an isostructural phase transition rearranging the OH···O hydrogen bonds, promoting the role of CH···O contacts and eliminating voids in the structure. Such monotonic and abrupt transformations may be characteristic of sugars and polysaccharides.

SUBMITTER: Patyk E 

PROVIDER: S-EPMC5501096 | biostudies-literature |

REPOSITORIES: biostudies-literature

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