title: Room temperature synthesis of covalent-organic framework films through vapor-assisted conversion.
abstract: We describe the facile synthesis of several two-dimensional covalent-organic frameworks (2D COFs) as films by vapor-assisted conversion at room temperature. High-quality films of benzodithiophene-containing BDT-COF and COF-5 with tunable thickness were synthesized under different conditions on various substrates. BDT-COF films of several micrometer thickness exhibit mesoporosity as well as textural porosity, whereas thinner BDT-COF films materialize as a cohesive dense layer. In addition, we studied the formation of COF-5 films with different solvent mixture compositions serving as vapor source. Room temperature vapor-assisted conversion is an excellent method to form COF films of fragile precursors and on sensitive substrates.
authors.affiliation: Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstrasse 5-13 (E), 81377 Munich, Germany.
authors.forename: Dana D
authors.initials: DD
authors.lastname: Medina
authors.forename: Julian M
authors.initials: JM
authors.lastname: Rotter
authors.forename: Yinghong
authors.initials: Y
authors.lastname: Hu
authors.forename: Mirjam
authors.initials: M
authors.lastname: Dogru
authors.forename: Veronika
authors.initials: V
authors.lastname: Werner
authors.forename: Florian
authors.initials: F
authors.lastname: Auras
authors.forename: John T
authors.initials: JT
authors.lastname: Markiewicz
authors.forename: Paul
authors.initials: P
authors.lastname: Knochel
authors.forename: Thomas
authors.initials: T
authors.lastname: Bein