Acta Cryst. (2009). E65, o2369-o2370  [ doi:10.1107/S1600536809035399 ]

2,9,16,19,22,25-Hexaoxatetracyclo[24.4.0.2^4,7.0^10,15]dotriaconta-1(26),4,6,10(15),11,13,27,29,31-nonaene

J. Y. Lee, J.-E. Lee, W. Sim and K.-M. Park

Abstract: The title 22-crown-6 unit, C₂₆H₂₈O₆, comprising of three benzo groups and triethylene glycol, was prepared by the reaction of ,'-dibromo-p-xylene with 1,8-bis(2-hydroxyphenoxy)-3,6-dioxaoctane in the presence of Cs₂CO₃ with tetrahydrofuran (THF) and recrystallized from dichloromethane-hexane (1:20 v/v) at room temperature. In the molecular structure, two O atoms of the central ethylene glycol in the triethylene glycol unit exhibit exo conformations due to intramolecular C-HO interactions. A number of C-HO and C-H intermolecular interactions contribute to the stabilization of the crystal packing.

Online 9 September 2009

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