title: Crystal structure of (6E,20E)-3,24-di-fluoro-13,14,28,29-tetra-hydro-5H,22H-tetra-benzo[e,j,p,u][1,4,12,15]tetra-oxa-cyclo-docosine-5,22-dione.
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.
authors.affiliation: Chemistry and Environmental Division, Manchester Metropolitan University, Manchester, M1 5GD, England, and, Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt.
authors.forename: Shaaban K
authors.initials: SK
authors.lastname: Mohamed
authors.affiliation: Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Akkurt
authors.affiliation: Chemistry Department, College of Education, Salahaddin University-Hawler, Erbil, Kurdistan Region, Iraq.
authors.forename: Farouq E
authors.initials: FE
authors.lastname: Hawaiz
authors.affiliation: Chemistry Department, College of Education, Salahaddin University-Hawler, Erbil, Kurdistan Region, Iraq.
authors.forename: Mzgin M
authors.initials: MM
authors.lastname: Ayoob
authors.affiliation: Chemistry Department, Summerstrand Campus (South), PO Box 77000, Nelson Mandela, Metropolitan University, South Africa.
authors.forename: Eric
authors.initials: E
authors.lastname: Hosten
keywords: cone-shaped conformation; crown ether; crystal structure; hydrogen bonds; supra­molecular compounds.