Selective CO<sub>2</sub> Capture and High Proton Conductivity of a Functional Star-of-David Catenane Metal-Organic Framework.
basic_science · Level V
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- Record sourced from PubMed, PMID 28960582.
- Also identified by DOI 10.1002/adma.201703301.
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Abstract
Network structures based on Star-of-David catenanes with multiple superior functionalities have been so far elusive, although numerous topologically interesting networks are synthesized. Here, a metal-organic framework featuring fused Star-of-David catenanes is reported. Two triangular metallacycles with opposite handedness are triply intertwined forming a Star-of-David catenane. Each catenane fuses with its six neighbors to generate a porous twofold intercatenated gyroid framework. The compound possesses exceptional stability and exhibits multiple functionalities including highly selective CO<sub>2</sub> capture, high proton conductivity, and coexistence of slow magnetic relaxation and long-range ordering.