Analysis of bis(trifluoromethylsulfonyl)imide-doped paramagnetic graphite intercalation compound using 19F very fast magic angle spinning nuclear magnetic resonance
✍ Scribed by Kazuma Gotoh; Kazuyuki Takeda; Michael M. Lerner; Yoshimi Sueishi; Shinpei Maruyama; Atsushi Goto; Masataka Tansho; Shinobu Ohki; Kenjiro Hashi; Tadashi Shimizu; Hiroyuki Ishida
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 213 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0008-6223
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✦ Synopsis
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 19 F 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 CF 3 groups rotate.