Related Experiment Video
Updated: Apr 9, 2026

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
Published on: February 4, 2013
Finely Resolved Threshold for the Sharp M12L24/M24L48 Structural Switch in Multi-Component M(n)L(2n) Polyhedral
Hiroyuki Yokoyama1, Yoshihiro Ueda1, Daishi Fujita1
1Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, and ACCEL, Japan Science and Technology Agency (JST), 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
Abstract:
In the self-assembly of M(n)L(2n) polyhedra, the bend angle (θ) 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° by demonstrating the exclusive formation of M12L24 cuboctahedra or M24L48 rhombicuboctahedra from two similar ligands with θ values of 130° and 134°. This sharp structural switch was fully confirmed by X-ray crystallography, mass spectrometry, NMR spectroscopy, and ultracentrifugation analyses.
Related Concept Videos
Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
Valence Bond Theory
Coordination Number and Geometry
¹H NMR: Complex Splitting
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied...
Crystal Field Theory - Tetrahedral and Square Planar Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Lattice Centering and Coordination Number
Types of Unit Cells
Imagine taking a large number of identical...

