Author/Authors :
Kazuma Gotoh، نويسنده , , Kazuyuki Takeda، نويسنده , , Michael M. Lerner، نويسنده , , Yoshimi Sueishi، نويسنده , , Shinpei Maruyama، نويسنده , , Atsushi Goto، نويسنده , , Masataka Tansho، نويسنده , , Shinobu Ohki، نويسنده , , Kenjiro Hashi، نويسنده , , Tadashi Shimizu، نويسنده , , Hiroyuki Ishida، نويسنده ,
Abstract :
F atoms bonding to paramagnetic/conductive graphene layers in accepter-type graphite intercalation compounds (GICs) are analyzed using very fast magic angle spinning nuclear magnetic resonance, which is applied for the first time on 19F nuclei to investigate paramagnetic materials. In the bis(trifluoromethylsulfonyl)imide(TFSI)-doped GIC, C–F bonds between fluorine atoms and graphene layers conform to a weak bonding of F to the graphene sheets. TFSI anions intercalated in the GIC do not show overall molecular motion; even at room temperature only the CF3 groups rotate.
