| Abstract
| - Nanoscale molecular rotors that can be driven in the solid state have been realized in Cs2([18]crown-6)3[Ni(dmit)2]2 crystals. To provide interactions between the molecular motion of the rotor and theelectronic system, [Ni(dmit)2]- ions, which bear one S = 1/2 spin on each molecule, were introduced intothe crystal. Rotation of the [18]crown-6 molecules within a Cs2([18]crown-6)3 supramolecule above 220 Kwas confirmed using X-ray diffraction, NMR, and specific heat measurements. Strong correlations wereobserved between the magnetic behavior of the [Ni(dmit)2]- ions and molecular rotation. Furthermore, brakingof the molecular rotation within the crystal was achieved by the application of hydrostatic pressure.
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