Tunable Interlayer Distance via Adsorption of Cyclic Hydrocarbons in SCSC Mode

Self-assembly of Cd­(NO₃)₂ with a new C₂-symmetric multidentate N-donor ligand, N,N′-((1,1′-(anthracene-9,10-diylbis­(methylene))­bis­(1H-1,2,3-triazole-4,1-diyl))­bis­(methylene))­bis­(1-(pyridin-3-yl)-N-(pyridin-3-ylmethyl)­methanamine) (L), gives rise to crystals of two-dimensional (2D) frameworks (sql), 4C₄H₈O₂@[Cd­(NO₃)₂L], with available interlayer open space occupied by solvate 1,4-dioxane molecules. The interlayer distance between the 2D frameworks can be modulated via adsorption of various cyclic hydrocarbons in the single-crystal to single-crystal mode. In this mode, the 1,4-dioxane solvate molecules were, in the present study, replaced for adsorption of benzene, 1,4-dioxane, anisole, trans-decalin, 1,4-benzodioxane, and 1,5-cyclooctadiene. This crystal system, furthermore, could be useful as an efficient and tolerant crystalline matrix for molecular-structure determination of a wide range of cyclic hydrocarbons.