title: Targeted functionalization of porous materials for separation of alcohol/water mixtures by modular assembly.
abstract: Three isoreticular hydrogen-bonded frameworks with functionalized pore structures were constructed by a modular self-assembly process in which a series of amino acids with various substituents serve as facile exchange subassemblies to decorate the pore wall. The ordered amino acid side-chain groups in the pore channels play an important role in determining the adsorption behavior of the framework materials, and ensure exclusive adsorption of methanol/water over ethanol. Gas-chromatographic separation experiments demonstrated that alcohols can be efficiently separated from ternary water/methanol/ethanol mixtures and revealed a key influence of the adsorbate-host framework interaction on the practical separation performance of mixtures.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, CAS, Fuzhou, Fujian 350002 (P.R. China), Fax: (+86) 591-83710051.
authors.forename: Cai-Xia
authors.initials: CX
authors.lastname: Ren
authors.forename: Min
authors.initials: M
authors.lastname: Ji
authors.forename: Qing-Xia
authors.initials: QX
authors.lastname: Yao
authors.forename: Li-Xuan
authors.initials: LX
authors.lastname: Cai
authors.forename: Bin
authors.initials: B
authors.lastname: Tan
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
keywords: adsorption; copper; gas chromatography; porous materials; supramolecular chemistry