Organic cation conformational flexibility governs mechanical response in organic-inorganic hybrid materials.

ABSTRACT: Organic-inorganic hybrids, that couple the structural design flexibility of organics and the rigidity of inorganic lattices, are gaining attention as next-generation stimuli-responsive materials for adaptive actuation applications. Understanding and controlling mechanical responses in organic-inorganic hybrids is vital for the development of smart materials. Herein, we designed and introduced five- and six-membered ring cations with distinct conformational rigidities to obtain two hybrid metal-halide crystals, (Hmpy)PbI₃ (1, Hmpy = 2-hydroxymethyl-pyrrolidinium) and (Hmpi)PbI₃ (2, Hmpi = 2-hydroxymethyl-piperidinium). Compound 1 exhibits a moderate reversible deformation of 5% with pronounced shape-locking. In contrast, compound 2 shows a large reversible deformation

SUBMITTER: Yang YW 

PROVIDER: S-EPMC12631573 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature