The mechanochemical Scholl reaction – a solvent-free and versatile graphitization tool. Issue 42 (13th April 2018)

• Record Type: Journal Article
• Authors: Grätz, Sven; Beyer, Doreen; Tkachova, Valeriya; Hellmann, Sarah; Berger, Reinhard; Feng, Xinliang; Borchardt, Lars
• Is Part Of: Chemical communications. Volume 54:Issue 42(2018)
• Page Start: 5307
• Page End: 5310
• Publication Date: 2018-04-13
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c8cc01993b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Ball milling was applied to a Scholl reaction of dendritic oligophenylene precursors to produce benchmark nanographenes under solvent-free conditions. Abstract : Herein, we report on the mechanochemical Scholl reaction of dendritic oligophenylene precursors to produce benchmark nanographenes such as hexa- peri -hexabenzocoronene (HBC), triangular shaped C60 and expanded C222 under solvent-free conditions. The solvent-free approach overcomes the bottleneck of solubility limitation in this well-known and powerful reaction. The mechanochemical approach allows tracking the reaction process by in situ pressure measurements. The quality of produced nanographenes has been confirmed by MALDI-TOF mass spectrometry and UV-Vis absorption spectroscopy. This approach paves the way towards gram scale and environmentally benign synthesis of extended nanographenes and possibly graphene nanoribbons suitable for application in carbon based electronics or energy applications.