(4Z,6Z)-4,6-Bis(4-meth-oxy-benzyl-idene)-2,2-dimethyl-1,3-dioxan-5-one.
Acta Crystallogr Sect E Struct Rep Online
; 68(Pt 2): o356, 2012 Feb 01.
Article
en En
| MEDLINE
| ID: mdl-22346983
ABSTRACT
The title compound, C(22)H(22)O(5), crystallizes with two independent mol-ecules in the asymmetric unit, both of which possess pseudo-C(s) symmetry. The central 1,3-dioxanone rings have envelope conformations, with the C atom bearing the two methyl groups at the flap. The benzene rings of the meth-oxy-benzyl-idene units, attached in the 4- and 6-positions on the central 1,3-dioxanone rings, are tilted in the same direction with dihedral angles varying between 8.2â
(1) and 18.1â
(1)°. The crystal packing is influenced by π-stacking inter-actions of the parallel displaced type [centroid-centroid distance of 3.723â
(1)â
Å for mol-ecule 1 and 3.884â
(1)â
Å for mol-ecule 2, with ring slippages of 1.432 and 1.613â
Å, respectively] and the T-shaped type, with the long mol-ecular axes all aligned along [010].
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Acta Crystallogr Sect E Struct Rep Online
Año:
2012
Tipo del documento:
Article