organic compounds
The structure of the complex of cyclomaltoheptaose (-CD) with nonanoic acid, -cyclodextrin-nonanoic acid (1/1) water solvate, 2C42H70O35.1.6C9H18O2.23.9H2O, has been determined at room temperature. Two independent molecules of -CD form a dimer which encloses two molecules of nonanoic acid. The guest molecules penetrate the -CD cavities to different depths. Their carboxylic groups point towards the primary hydroxyl region of -CDs forming direct dimers through hydrogen bonds with the carboxylic groups of adjacent guests along the a axis and interact with water molecules and disordered primary hydroxyl oxygen atoms.
Supporting information
Crystallographic Information File (CIF) | |
Structure factor file (CIF format) |
CCDC reference: 127252