title: A robust binary supramolecular organic framework (SOF) with high CO2 adsorption and selectivity.
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.
authors.affiliation: School of Chemistry, University of Nottingham , Nottingham NG7 2RD, United Kingdom.
authors.forename: Jian
authors.initials: J
authors.lastname: Lü
authors.forename: Cristina
authors.initials: C
authors.lastname: Perez-Krap
authors.forename: Mikhail
authors.initials: M
authors.lastname: Suyetin
authors.forename: Nada H
authors.initials: NH
authors.lastname: Alsmail
authors.forename: Yong
authors.initials: Y
authors.lastname: Yan
authors.forename: Sihai
authors.initials: S
authors.lastname: Yang
authors.forename: William
authors.initials: W
authors.lastname: Lewis
authors.forename: Elena
authors.initials: E
authors.lastname: Bichoutskaia
authors.forename: Chiu C
authors.initials: CC
authors.lastname: Tang
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Blake
authors.forename: Rong
authors.initials: R
authors.lastname: Cao
authors.forename: Martin
authors.initials: M
authors.lastname: Schröder