A Robust Binary Supramolecular Organic Framework (SOF) with High CO2 Adsorption and Selectivity

Research output: Research - peer-reviewArticle

  • External authors:
  • Jian Lü
  • Cristina Perez-Krap
  • Mikhail Suyetin
  • Nada H Alsmail
  • Yong Yan
  • William Lewis
  • Elena Bichoutskaia
  • Chiu C Tang
  • Alexander J Blake
  • Rong Cao

Abstract

A robust binary hydrogen-bonded supramolecular organic framework (SOF-7) has been synthesized by solvothermal reaction of 1,4-bis-(4-(3,5-dicyano-2,6-dipyridyl)dihydropyridyl)benzene (1) and 5,5?-bis-(azanediyl)-oxalyl-diisophthalic acid (2). Single crystal X-ray diffraction analysis shows that SOF-7 comprises 2 and 1,4-bis-(4-(3,5-dicyano-2,6-dipyridyl)pyridyl)benzene (3); the latter formed in situ from the oxidative dehydrogenation of 1. SOF-7 shows a three-dimensional four-fold interpenetrated structure with complementary O?H···N hydrogen bonds to form channels that are decorated with cyano and amide groups. SOF-7 exhibits excellent thermal stability and solvent and moisture durability as well as permanent porosity. The activated desolvated material SOF-7a shows high CO2 adsorption capacity and selectivity compared with other porous organic materials assembled solely through hydrogen bonding.

Bibliographical metadata

Original languageEnglish
Pages (from-to)12828-12831
Number of pages4
JournalJournal of the American Chemical Society
Volume136
Issue number37
DOIs
StatePublished - 2014