PLANAR CHIRALITY IN 2,2-DIPHENYL-1,3,6,9-TETRAOXACYCLOUNDECANE

Authors
TAMURA H UENO S OGAWA K NAGAI T OSHIMA T
Citation
H. Tamura et al., PLANAR CHIRALITY IN 2,2-DIPHENYL-1,3,6,9-TETRAOXACYCLOUNDECANE, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 759-761
Citations number
8
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
53
Year of publication
1997
Part
6
Pages
759 - 761
Database
ISI
SICI code
0108-2701(1997)53:<759:PCI2>2.0.ZU;2-2
Abstract
The crystal of benzophenone crown ether acetal, C19H22O4, With an 11-m embered ring has two crystallographically independent molecules in the unit cell. The bond lengths and angles in the ring moiety are similar to those of analogous crown ethers. The 11-membered rings are greatly twisted to adopt planar-chiral structures and the unit cell contains two sets of enantiomers.