Synthesis and Characterization
of Quarteranthene:
Elucidating the Characteristics of the Edge State of Graphene Nanoribbons
at the Molecular Level
Akihito Konishi
Yasukazu Hirao
Kouzou Matsumoto
Hiroyuki Kurata
Ryohei Kishi
Yasuteru Shigeta
Masayoshi Nakano
Kazuya Tokunaga
Kenji Kamada
Takashi Kubo
10.1021/ja309599m.s002
https://acs.figshare.com/articles/dataset/Synthesis_and_Characterization_of_Quarteranthene_Elucidating_the_Characteristics_of_the_Edge_State_of_Graphene_Nanoribbons_at_the_Molecular_Level/2448682
The characteristics of the edge state, which is a peculiar
magnetic
state in zigzag-edged graphene nanoribbons (ZGNRs) that originates
from electron–electron correlation in an edge-localized π-state,
are investigated by preparing and characterizing quarteranthene molecules.
The molecular geometry that was determined from the X-ray analysis
is consistent with a zigzag-edge-localized structure of unpaired electrons.
The localized electrons are responsible for the peculiar magnetic
(room-temperature ferromagnetic correlation), optical (the lowest-lying
doubly excited state), and chemical (peroxide bond formation) behaviors.
On the basis of these distinguishing properties and a careful consideration
of the valence bonding, insight into the edge state of ZGNRs can be
gained.
2013-01-30 00:00:00
correlation
ZGNR
peroxide bond formation
Molecular LevelThe characteristics
electron
edge state