Molecular-dynamics simulations examine self-assembled nanocubes built from six gear-shaped amphiphiles, asking how the number and placement of equatorial methyl groups affect recurring deformation patterns and structural transitions.
Key findings
- The cubes occupied recurring deformation motifs with infrequent, reversible transitions. Fewer methyl groups increased transition frequency, while methyl groups near cation–π contacts more strongly restricted motion, suggesting a stabilising role.
Why this matters globally
Atomistic insight may inform the design of self-assembled hosts and shape-stable nanomaterials, although such applications remain research directions rather than demonstrated performance.
Thai researcher contribution
Masanori Tachikawa, jointly affiliated with Chulalongkorn University, is the corresponding author, reflecting Thai–Japanese collaboration in computational chemistry and supramolecular materials.
Limitations to consider
Results depend on the force field, initial conditions and simulation timescale. The metastructures are recurring motifs, not confirmed thermodynamic metastable states. Free-energy mapping, experimental validation, guest-molecule tests and full equilibrium evidence are absent.