title: Mono- and Ditopic Bisfunctionalization of Graphene.
abstract: For the first time, the bisfunctionalization of graphene by employing two successive reduction and covalent bond forming steps is reported. Bulk functionalization in dispersion and functionalization of individual sheets deposited on surfaces have both been carried out. Whereas in the former case attacks from both sides of the basal plane are possible and can lead to strain-free architectures, in the latter case, retrofunctionalizations can become important when the corresponding anion of the addend is a sufficiently good leaving group.
authors.affiliation: Department of Chemistry and Pharmacy & Joint Institute of Advanced Materials and Processes (ZMP), Friedrich-Alexander University of Erlangen-Nürnberg, Henkestrasse 42, 91054, Erlangen, Germany.
authors.forename: Kathrin C
authors.initials: KC
authors.lastname: Knirsch
authors.affiliation: Department of Chemistry and Pharmacy & Joint Institute of Advanced Materials and Processes (ZMP), Friedrich-Alexander University of Erlangen-Nürnberg, Henkestrasse 42, 91054, Erlangen, Germany.
authors.forename: Ricarda A
authors.initials: RA
authors.lastname: Schäfer
authors.affiliation: Department of Chemistry and Pharmacy & Joint Institute of Advanced Materials and Processes (ZMP), Friedrich-Alexander University of Erlangen-Nürnberg, Henkestrasse 42, 91054, Erlangen, Germany.
authors.forename: Frank
authors.initials: F
authors.lastname: Hauke
authors.affiliation: Department of Chemistry and Pharmacy & Joint Institute of Advanced Materials and Processes (ZMP), Friedrich-Alexander University of Erlangen-Nürnberg, Henkestrasse 42, 91054, Erlangen, Germany. andreas.hirsch@fau.de.
authors.forename: Andreas
authors.identifier: 0000-0003-1458-8872
authors.initials: A
authors.lastname: Hirsch
keywords: Raman spectroscopy; functionalization; graphene; retrofunctionalization; topicity