High-Pressure (+)-Sucrose Polymorph


  • The study was supported by the TEAM Programme of the Foundation for Polish Science, grant 2009-4/6.


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Yes, Walter, there is a polymorph of sucrose! At 4.80 GPa, (+)-sucrose, common table sugar, transforms into a new polymorph. In its structure the network of intermolecular hydrogen bonds is reformulated, with new types of H bonds being formed, and the molecular conformation changes. This structural variability is characteristic of all carbohydrates, hinders their crystallization, and is vital for organisms for which sugars are important building blocks.