Alkali Metal Arenides as a Universal Synthetic Tool for Layered 2D Germanene Modification

Tomas Hartman; Jiri Sturala; Jan Plutnar; Zdenek Sofer

doi:10.1002/anie.201910654

Alkali Metal Arenides as a Universal Synthetic Tool for Layered 2D Germanene Modification

Angew Chem Int Ed Engl. 2019 Nov 11;58(46):16517-16522. doi: 10.1002/anie.201910654. Epub 2019 Oct 8.

Authors

Tomas Hartman¹, Jiri Sturala¹, Jan Plutnar¹, Zdenek Sofer¹

Affiliation

¹ Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628, Prague 6, Czech Republic.

PMID: 31495990
DOI: 10.1002/anie.201910654

Abstract

The rediscovery of graphene in 2004 has started an enormous chase in the research of 2D materials. A new family of layered 2D materials consisting of the 14th group elements beyond carbon has already been reported. Here, a new methodology in germanene chemistry is presented using germanane (Ge₆ H₆ ) as a stable and easily accessible starting material for effective synthesis of novel germanene derivatives. The modification procedure utilizing strong bases-alkali metal arenides-for deprotonation of germanane and its subsequent functionalization with p-nitrobenzyl bromide is described. Functionalization of germanene is confirmed by FT-IR, Raman, and XPS spectroscopy as well as by X-ray diffraction analysis.

Keywords: exfoliation; germanane; naphthalenide; surface modification.