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High Resolution Image Download MS PowerPoint Slide The M 6 L 4 cage, self-assembling from six Pd(II) or Pt(II) 90-degree blocks and four triazine-cored triangular ligands, has an effective hydrophobic cavity of about 450 Å 3 capable of encapsulating one or more small molecules. Here, from the same components, we successfully constructed an M 9 L 6 cage with an internal volume expanded to 1540 Å 3 via the self-assembly of an M 8 L 6 precursor using pillar5arene as a template. This cage retains the high molecular recognition ability of the M 6 L 4 cage while recognizing medium-sized guest molecules with molecular weights of up to ∼1600.
Iizuka et al. (Mon,) studied this question.