Shape-Memory Effect Triggered by π-π Interactions in a Flexible Terpyridine Metal-Organic Framework.

ABSTRACT: Shape-memory polymers and alloys are adaptable materials capable of reversing from a deformed, metastable phase to an energetically favored original phase in response to external stimuli. In the context of metal-organic frameworks, the term shape-memory is defined as the property of a switchable framework to stabilize the reopened pore phase after the first switching transition. Herein we describe a novel flexible terpyridine MOF which, upon desolvation, transforms into a nonporous structure that reopens into a shape-memory phase when exposed to CO₂ at 195 K. Based on comprehensive in situ experimental studies (SC-XRD and PXRD) and DFT energetic considerations combined with literature reports, we recommend dividing shape-memory MOFs into two categories, viz responsive and

SUBMITTER: Roztocki K 

PROVIDER: S-EPMC10074452 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature