title: Copper-Free Sonogashira Coupling for High-Surface-Area Conjugated Microporous Poly(aryleneethynylene) Networks.
abstract: A modified one-pot Sonogashira cross-coupling reaction based on a copper-free methodology has been applied for the synthesis of conjugated microporous poly(aryleneethynylene) networks (CMPs) from readily available iodoarylenes and 1,3,5-triethynylbenzene. The polymerization reactions were carried out by using equimolar amounts of halogen and terminal alkyne moieties with extremely small loadings of palladium catalyst as low as 0.65 mol %. For the first time, CMPs with rigorously controlled structures were obtained without any indications of side reactions, as proven by FTIR and solid-state NMR spectroscopy, while showing Brunauer-Emmett-Teller (BET) surface areas higher than any poly(aryleneethynylene) network reported before, reaching up to 2552 m(2)  g(-1) .
authors.affiliation: Department of Chemistry, Functional Materials, Technische Universität Berlin, Hardenbergstrasse 40, 10623, Berlin, Germany. arne.thomas@tu-berlin.de.
authors.forename: Matthias
authors.identifier: 0000-0003-4654-0662
authors.initials: M
authors.lastname: Trunk
authors.affiliation: Department of Chemistry, Functional Materials, Technische Universität Berlin, Hardenbergstrasse 40, 10623, Berlin, Germany.
authors.forename: Anna
authors.initials: A
authors.lastname: Herrmann
authors.affiliation: Department of Chemistry, Functional Materials, Technische Universität Berlin, Hardenbergstrasse 40, 10623, Berlin, Germany.
authors.forename: Hakan
authors.initials: H
authors.lastname: Bildirir
authors.affiliation: Department of Chemistry, Functional Materials, Technische Universität Berlin, Hardenbergstrasse 40, 10623, Berlin, Germany.
authors.forename: Ali
authors.initials: A
authors.lastname: Yassin
authors.affiliation: Department of Chemistry, Functional Materials, Technische Universität Berlin, Hardenbergstrasse 40, 10623, Berlin, Germany.
authors.forename: Johannes
authors.initials: J
authors.lastname: Schmidt
authors.affiliation: Department of Chemistry, Functional Materials, Technische Universität Berlin, Hardenbergstrasse 40, 10623, Berlin, Germany. matthias.trunk@tu-berlin.de.
authors.forename: Arne
authors.identifier: 0000-0002-2130-4930
authors.initials: A
authors.lastname: Thomas
keywords: CO2 sorption; conjugated microporous polymers; copper-free Sonogashira; covalent organic frameworks; hydrogen storage