Crystal Structure Of (Acetato-Kappa O)(Ethanol-Kappa O)[(9s,17s,21s,29s)-9,17,21,29-Tetrahydroxy-18,30-Dioxaoctacyclo[18.10.0 .0(2,7).0(8,19).0(9,17).0(11,16).0(21,29).0(23,28)]Triaconta-1,3,5,7,11( 16),12,14,19,23(28),24,26-Undecaene-10,22-Dione-Kappa O-3(18),O-21,O-22]Caesium Ethanol Monosolvate

The title compound, [Cs(CH3COO)(C28H16O8)(C2H5OH)]center dot C2H5OH, is the product of the complexation between one vasarene analogue [1], bis ninhydrin naphthalene-1,3-diol and CsF, where the F- ion has reacted with residual acetic acid (AcOH), to form a [1]center dot CsOAc complex. The intermolecular interactions with the multiple oxygen-containing functional groups of the ligand, as well as O-H center dot center dot center dot O hydrogen bonds involving the ethanol solvent molecules, stabilize the complex, forming a chain along [100]. Additional parallel-displaced pi-pi stacking, with an interplanar distance of 3.669 (1) angstrom, connect several unit cells in a three-dimensional supramolecular structure, though, the larger size of AcO- (1.60 angstrom) compared to F- (1.33 angstrom) prevents the tight packing that was once achieved with other vasarene complexes of CsF.