18-CROWN-6-METHYL 2-NAPHTHALENESULFONATE (1 2) COMPLEX/

Authors
CHENEVERT R GAGNON R SIMARD M
Citation
R. Chenevert et al., 18-CROWN-6-METHYL 2-NAPHTHALENESULFONATE (1 2) COMPLEX/, Acta crystallographica. Section C, Crystal structure communications, 49, 1993, pp. 2134-2137
Citations number
8
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
49
Year of publication
1993
Part
12
Pages
2134 - 2137
Database
ISI
SICI code
0108-2701(1993)49:<2134:12(2C>2.0.ZU;2-6
Abstract
The guest molecules are coordinated above and below the crown (1,4,7,1 0,13,16-hexaoxacyclooctadecane) in such a way that the dipoles are com pensated. The methyl group of each sulfonate yields two C-H...O weak c ontacts of 2.63 (3) and 2.70 (3) angstrom; the third methyl H atom is directed away from the crown ether. The 18-crown-6 molecule has approx imately D3d symmetry and the sulfonate molecule is disordered over two orientations (rotation of C-S bonds) of unequal proportion (80/20).