Fig. 2: Schematic illustration of the “crystalline sponge”1,2 method versus the “π-trap” approach.
From: The π-trap approach for obtaining crystal structure data of inherently amorphous cluster compounds
The approaches are shown on the examples of the organic compound guaiazulene, C15H181,2, represented by a light brown tetrahedron, and [(PhSn)4S6] (A), represented by its inner tetrahedral {Sn4} motif (see Fig. 1c). a The “crystal sponge” method applied to smaller-size organic compounds included in the cages formed by the secondary building units (SBUs) of a metal-organic framework (MOF). b The “π-trap” approach leading to crystalline compounds accommodating organotetrel chalcogenide cluster molecules between C60 spheres.
