Chiral recognition in the crystal structure of a dichiral mesogen with a unique isotropic mesophase: 2-{4-[(R)-2-fluorohexyloxy]phenyl}-5-{4-[(S)-2-fluoro-2-methyldecanoyloxy]phenyl}pyrimidine

Citation
Y. Matsunaga et al., Chiral recognition in the crystal structure of a dichiral mesogen with a unique isotropic mesophase: 2-{4-[(R)-2-fluorohexyloxy]phenyl}-5-{4-[(S)-2-fluoro-2-methyldecanoyloxy]phenyl}pyrimidine, LIQ CRYST, 28(12), 2001, pp. 1805-1812
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LIQUID CRYSTALS
ISSN journal
0267-8292 → ACNP
Volume
28
Issue
12
Year of publication
2001
Pages
1805 - 1812
Database
ISI
SICI code
0267-8292(200112)28:12<1805:CRITCS>2.0.ZU;2-2
Abstract
The crystal structure of the title compound, which has an optically isotrop ic IsoX phase with an endothermic transition on cooling from an Sm*C phase, has been determined at 230 K. The crystal has a smectic-like layer structu re composed of four crystallographically independent molecules. In the laye r, one-dimensional chains of tightly fitted pyrimidine rings, with N...H di stances shorter than the van der Waals radii, result in the large overlappi ng of core moieties and further induce close contacts and stereo-specific F -methyl interactions between the chiral groups; this is considered to be re sponsible for the uniquely organized IsoX phase.