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Alkali Metal Arenides as a Universal Synthetic Tool for Layered 2D Germanene Modification
Author(s) -
Hartman Tomas,
Sturala Jiri,
Plutnar Jan,
Sofer Zdenek
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201910654
Subject(s) - germanene , surface modification , graphene , raman spectroscopy , x ray photoelectron spectroscopy , deprotonation , materials science , alkali metal , chemistry , nanotechnology , chemical engineering , silicene , organic chemistry , physics , ion , engineering , optics
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 (Ge 6 H 6 ) 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.