title: 4-Methoxyanilinium tetrafluoroborate-dibenzo-18-crown-6 (1/1).
abstract: In the structure of the complex of dibenzo-18-crown-6 [systematic name: 2,5,8,15,18,21-hexaoxatricyclo[20.4.0.0(9,14)]hexacosa-1(26),9,11,13,22,24-hexaene] with 4-methoxyanilinium tetrafluoroborate, C(7)H(10)NO(+) x BF(4)(-) x C(20)H(24)O(6), the protonated 4-methoxyanilinium (MB-NH(3)(+)) cation forms a 1:1 supramolecular rotator-stator complex with the dibenzo-18-crown-6 molecule via N-H...O hydrogen bonds. The MB-NH(3)(+) group is attached from the convex side of the bowl-shaped crown, in contrast with similar ammonium cations that nest in the curvature of the bowl. The cations are associated via C-H...pi interactions, while the cations and anions are linked by weak C-H...F hydrogen bonds, forming cation-crown-anion chains parallel to [011].
authors.affiliation: Ordered Matter Science Research Center, Southeast University, Nanjing 210096, People's Republic of China. fuxuequn222@163.com
authors.forename: Xue-qun
authors.initials: XQ
authors.lastname: Fu
authors.forename: Yong-le
authors.initials: YL
authors.lastname: Yang
authors.forename: Qiong
authors.initials: Q
authors.lastname: Ye
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D000838:Anions / Q000737:chemistry; D002412:Cations / Q000737:chemistry; D043844:Crown Ethers / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D015394:Molecular Structure
chemical_list: D000814:Aniline Compounds; D000838:Anions; D002412:Cations; D043844:Crown Ethers; C002564:dibenzo-18-crown-6; C013813:4-anisidine