A confinement-regulated (H₃C–NH₃)⁺ ion as a smallest dual-wheel rotator showing bisected rotation dynamics

Abstract

On the basis of the variable-temperature single-crystal X-ray diffraction, rotational energy barrier analysis, variable-temperature/frequency dielectric response, and molecular dynamics simulations, here we report a new crystalline supramolecular rotor (CH3NH3)(18-crown-6)[CuCl3], in...