Dendronized Ferromagnetic Gold Nanoparticles Self-Organized in a Thermotropic Cubic Phase

Gold nanoparticles possessing a positionally ordered 3D liquid crystalline phase in the bulk have been prepared (see figure). Induction of the mesophase results from the synergy between the gold core and the non‐mesogenic dendrons. These particles are also ferromagnetic up to 400 K and are able to self‐organize in a 2D hexagonal array on solid substrates, opening perspectives in the field of information storage at the molecular level.