A double helix of opposite charges to form channels with unique CO₂ selectivity and dynamics.

ABSTRACT: Porous molecular materials represent a new front in the endeavor to achieve high-performance sorptive properties and gas transport. Self-assembly of polyfunctional molecules containing multiple charges, namely, tetrahedral tetra-sulfonate anions and bifunctional linear cations, resulted in a permanently porous crystalline material exhibiting tailored sub-nanometer channels with double helices of electrostatic charges that governed the association and transport of CO₂ molecules. The charged channels were consolidated by robust hydrogen bonds. Guest recognition by electrostatic interactions remind us of the role played by the dipolar helical channels in regulatory biological membranes. The systematic electrostatic sites provided the perfectly fitting loci of complementary c

SUBMITTER: Xing G 

PROVIDER: S-EPMC6354830 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature