Lookup NU author(s): Jayne Armstrong,
Emeritus Professor Mark Thomas
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Abstract: We report two isoreticular 3D peptide-based porous frameworks formed by coordination of the tripepti-des Gly-l-His-Gly and Gly-l-His-l-Lys to CuII which display sponge-like behaviour. These porous materials undergo structural collapse upon evacuation that can be reversed by exposure to water vapour, which permits recovery of the original open channel structure. This is further confirmed by sorption studies that reveal that both solids exhibit selective sorption of H2O while CO2 adsorption does not result in re- covery of the original structures. We also show how the pendant aliphatic amine chains, present in the framework from the introduction of the lysine amino acid in the pepti-dic backbone, can be post-synthetically modified to produce urea-functionalised networks by following methodologies typically used for metal–organic frameworks built from more rigid “classical” linkers.
Author(s): Martí-Gastaldo C, Warren JE, Briggs ME, Armstrong JA, Thomas KM, Rosseinsky MJ
Publication type: Article
Publication status: Published
Journal: Chemistry - A European Journal
Print publication date: 02/11/2015
Online publication date: 25/09/2015
Acceptance date: 04/09/2015
Date deposited: 21/12/2015
ISSN (print): 0947-6539
ISSN (electronic): 1521-3765
Publisher: Wiley - VCH Verlag GmbH & Co. KGaA
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