Chemical Design and Physical Properties of Dynamic Molecular Assemblies

The thermally activated motional freedom of protons (H+), ions (M+), and molecules can be controlled using supramolecular approaches. In single crystals, is enabled because the small size H+ M+ (e.g., Li+ Na+), motion molecular units yield rotator structures in electrically conducting magnetic crystals. design hydrogen-bonded networks rotator–stator a rational method to form functional dynamic assemblies, alkylamide (–CONHCnH2n+1) chains discotic hexagonal columnar (Colh) lamellar (La) liquid crystal phases enables dipole inversion polar N–H⋯O= chains, enabling ferroelectric response an applied external electric field. rotational neutral radicals plastic crystals results multifunctional dielectric, magnetic, optical properties at order–disorder phase transition. host–guest structural transformations are coupled with highly reversibly guest adsorption–desorption crystalline state. Further, changes fluorescence colour excited-state intramolecular proton transfer (ESIPT) systems exploited for solid-state sensing, which both rotation conformational drastically affect fluorescent responses. protons, ions, approaches, combined physical conduction, ion dielectric switching, rotator, collective rotation, ferroelectrics, sorption, chromism, sensing.