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Updated: Aug 10, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
Hydrogen bonding in (2R,3R)-(+)-2,3-dimethoxybutanedioic acid [(+)-tartaric acid dimethyl ether]
1Department of Chemistry, Ohio State University, Columbus 43210, USA. gerkin@chemistry.ohio-state.edu
Abstract:
The title acid, C6H10O6, crystallized in the non-centrosymmetric space group I2, with half a molecule in the asymmetric unit (the molecular symmetry is 2). In the single type of hydrogen bond, the carboxylic H atom is ordered, and the OD...OA distance is 2.665 (2) A. Each molecule is linked to four others by hydrogen bonds and to two others by C-H...O interactions. The dihedral angle between intramolecular carboxyl-group planes is 85.2 (1) degree.
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