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Self-Assembly of Trigonal-Prismatic Metallocages Encapsulating BF4 or CuI32 as Anionic Guests: Structures and Mechanism of Formation
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2002
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Supramolecular AssemblyEngineeringMolecular Self-assemblyChemistryInorganic CompoundTrigonal-prismatic M3l2 MetallocagesChemical EngineeringMetal-organic PolyhedronUnprecedented Metal-complex-host/metal-complex-guest ArrangementMaterials ScienceInorganic ChemistryPhysical ChemistryCrystallographyInorganic SynthesisNatural SciencesSelf-assemblyCoordination ComplexLarge AnionsCoordination Polymer
Thermodynamically stable, but kinetically labile: Trigonal-prismatic M3L2 metallocages occur in [BF4⊂{Ag3(MsTBim)2}](BF4)2 (1) and [{CuI3⊂[Cu3(MsTBim)2]}2](Cu2I4) (2), the latter with an unprecedented metal-complex-host/metal-complex-guest arrangement. Large anions such as CF3SO3− or BPh4− have to reside outside the cage facing its “windows”. MsTBim=1,3,5-tris(benzimidazol-1-ylmethyl)-2,4,6-trimethylbenzene.