A Two‐Dimensional Polymer Synthesized at the Air/Water Interface. Issue 33 (28th June 2018)

• Record Type: Journal Article
• Authors: Müller, Vivian; Hinaut, Antoine; Moradi, Mina; Baljozovic, Milos; Jung, Thomas A.; Shahgaldian, Patrick; Möhwald, Helmuth; Hofer, Gregor; Kröger, Martin; King, Benjamin T.; Meyer, Ernst; Glatzel, Thilo; Schlüter, A. Dieter
• Is Part Of: Angewandte Chemie international edition. Volume 57:Issue 33(2018)
• Page Start: 10584
• Page End: 10588
• Publication Date: 2018-06-28
• Subjects: anthracene dimerization -- monolayers -- networks -- photochemistry -- porous films; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201804937
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: A trifunctional, partially fluorinated anthracene‐substituted triptycene monomer was spread at an air/water interface into a monolayer, which was transformed into a long‐range‐ordered 2D polymer by irradiation with a standard UV lamp. The polymer was analyzed by Brewster angle microscopy, scanning tunneling microscopy measurements, and non‐contact atomic force microscopy, which confirmed the generation of a network structure with lattice parameters that are virtually identical to a structural model network based on X‐ray diffractometry of a closely related 2D polymer. The nc‐AFM images highlight the long‐range order over areas of at least 300×300 nm 2 . As required for a 2D polymer, the pore sizes are monodisperse, except for the regions where the network is somewhat stretched because it spans over protrusions. Together with a previous report on the nature of the cross‐links in this network, the structural information provided herein leaves no doubt that a 2D polymer has been synthesized under ambient conditions at an air/water interface. Abstract : A molecular fishing net consisting of a regular array of nanosized pores in a covalent monolayer has been synthesized at an air/water interface. The structure of this polymer was analyzed by Brewster angle microscopy, scanning tunneling microscopy, and non‐contact atomic force microscopy.