A Highly‐Ordered 3D Covalent Fullerene Framework1. (8th May 2015)

• Record Type: Journal Article
• Authors: Minar, Norma K.; Hou, Kun; Westermeier, Christian; Döblinger, Markus; Schuster, Jörg; Hanusch, Fabian C.; Nickel, Bert; Ozin, Geoffrey A.; Bein, Thomas
• Is Part Of: Angewandte Chemie. Volume 127:Number 26(2015)
• Page Start: 7687
• Page End: 7691
• Publication Date: 2015-05-08
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201411344
• Languages: English
• ISSNs: 0044-8249

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A highly‐ordered 3D covalent fullerene framework is presented with a structure based on octahedrally functionalized fullerene building blocks in which every fullerene is separated from the next by six functional groups and whose mesoporosity is controlled by cooperative self‐assembly with a liquid‐crystalline block copolymer. The new fullerene‐framework material was obtained in the form of supported films by spin coating the synthesis solution directly on glass or silicon substrates, followed by a heat treatment. The fullerene building blocks coassemble with a liquid‐crystalline block copolymer to produce a highly ordered covalent fullerene framework with orthorhombic <italic>Fmmm</italic> symmetry, accessible 7.5 nm pores, and high surface area, as revealed by gas adsorption, NMR spectroscopy, small‐angle X‐ray scattering (SAXS), and TEM. We also note that the 3D covalent fullerene framework exhibits a dielectric constant significantly lower than that of the nonporous precursor material.</p> </abstract>