4.6 Article

Finely Resolved Threshold for the Sharp M12L24/M24L48 Structural Switch in Multi-Component MnL2n Polyhedral Assemblies: X-ray, MS, NMR, and Ultracentrifugation Analyses

Journal

CHEMISTRY-AN ASIAN JOURNAL
Volume 10, Issue 10, Pages 2292-2295

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201500519

Keywords

cage compounds; nanostructures; polyhedera; self-assembly; supramolecular chemistry

Funding

  1. KAKENHI (MEXT) [24685010, 25102007]
  2. Grants-in-Aid for Scientific Research [24685010, 25102001, 25102007] Funding Source: KAKEN

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In the self-assembly of MnL2n polyhedra, the bend angle (theta) of the divalent ligand components determines the final structure. The threshold for the sharp structural switch between M12L24 and M24L48 was finely resolved to within just 4 degrees by demonstrating the exclusive formation of M12L24 cuboctahedra or M24L48 rhombicuboctahedra from two similar ligands with theta values of 130 degrees and 134 degrees. This sharp structural switch was fully confirmed by X-ray crystallography, mass spectrometry, NMR spectroscopy, and ultracentrifugation analyses.

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