Isomorphic supramolecular structures via one-dimensional hydrogen bonding motifs in crystals of chiral difluorolactates, trichlorolactates and trifluorolactates†
Abstract
Optically pure difluorolactates and trichlorolactates were prepared and their crystal structures were determined and compared with those of trifluorolactates. One-dimensional hydrogen bonding networks of these compounds involve infinite OH⋯OH, OH⋯OC, and C–H⋯OC hydrogen bonds. The crystal structure of a single-headed difluorolactate showed a weak intermolecular C–H⋯F hydrogen bond between