Crystal structure of (6 E,20 E)-3,24-di-fluoro-13,14,28,29-tetra-hydro-5 H,22 H-tetra-benzo[ e, j, p, u][1,4,12,15]tetra-oxa-cyclo-docosine-5,22-dione

Shaaban K Mohamed; Mehmet Akkurt; Farouq E Hawaiz; Mzgin M Ayoob; Eric Hosten

doi:10.1107/S2056989016018934

Crystal structure of (6 E,20 E)-3,24-di-fluoro-13,14,28,29-tetra-hydro-5 H,22 H-tetra-benzo[ e, j, p, u][1,4,12,15]tetra-oxa-cyclo-docosine-5,22-dione

Acta Crystallogr E Crystallogr Commun. 2017 Jan 1;73(Pt 1):13-16. doi: 10.1107/S2056989016018934.

Authors

Shaaban K Mohamed¹, Mehmet Akkurt², Farouq E Hawaiz³, Mzgin M Ayoob³, Eric Hosten⁴

Affiliations

¹ Chemistry and Environmental Division, Manchester Metropolitan University, Manchester, M1 5GD, England, and, Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt.
² Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
³ Chemistry Department, College of Education, Salahaddin University-Hawler, Erbil, Kurdistan Region, Iraq.
⁴ Chemistry Department, Summerstrand Campus (South), PO Box 77000, Nelson Mandela, Metropolitan University, South Africa.

Abstract

The conformation of the title compound, C₃₄H₂₆F₂O₆, is cone-shaped, partially determined by intra-molecular C-H⋯O short contacts. The benzene rings at the top of the cone are inclined to one another by 73.10 (7)°, while the benzene rings at the bottom of the cone are inclined to one another by 35.49 (8)°. In the crystal, mol-ecules are linked by C-H⋯O and C-H⋯F hydrogen bonds, forming a three-dimensional supra-molecular structure. There are also C-H⋯π contacts present within the framework structure.

Keywords: cone-shaped conformation; crown ether; crystal structure; hydrogen bonds; supramolecular compounds..