Nanoscale molecular rotors that can be driven in the solid state have been realized in Cs2(-crown-6)3[Ni(dmit)2] 2 crystals. To provide interactions between the molecular motion of the rotor and the electronic system, [Ni(dmit)2]- ions, which bear one S = 1/2 spin on each molecule, were introduced into the crystal. Rotation of the crown-6 molecules within a Cs2(crown-6) 3 supramolecule above 220 K was confirmed using X-ray diffraction, NMR, and specific heat measurements. Strong correlations were observed between the magnetic behavior of the [Ni(dmit)2]- ions and molecular rotation. Furthermore, braking of the molecular rotation within the crystal was achieved by the application of hydrostatic pressure.
ASJC Scopus subject areas
- Colloid and Surface Chemistry