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Electrochemical reduction of cationic Li+ @C-60 to neutral Li+@C-60(center dot-): isolation and characterisation of endohedral [60] fulleride

Title
Electrochemical reduction of cationic Li+ @C-60 to neutral Li+@C-60(center dot-): isolation and characterisation of endohedral [60] fulleride
Authors
Ueno, HiroshiAoyagi, ShinobuYamazaki, YuOhkubo, KeiIkuma, NaohikoOkada, HiroshiKato, TatsuhisaMatsuo, YutakaFukuzumi, ShunichiKokubo, Ken
Ewha Authors
Shunichi FukuzumiKei Okubo
SCOPUS Author ID
Shunichi Fukuzumiscopus; Kei Okuboscopus
Issue Date
2016
Journal Title
CHEMICAL SCIENCE
ISSN
2041-6520JCR Link2041-6539JCR Link
Citation
vol. 7, no. 9, pp. 5770 - 5774
Publisher
ROYAL SOC CHEMISTRY
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Lithium-encapsulated [60] fullerene Li@C-60, namely, lithium-ion-encapsulated [60]fullerene radical anion Li+@C-60(center dot-), was synthesised by electrochemical reduction of lithium-ion-encapsulated [60]fullerene trifluoromethanesulfonylimide salt [Li+@C-60](TFSI-). The product was fully characterised by UV-vis-NIR absorption and ESR spectroscopy as well as single-crystal X-ray analysis for the co-crystal with nickel octaethylporphyrin. In solution Li@C-60 exists as a monomer form dominantly, while in the crystal state it forms a dimer (Li@C-60-Li@C-60) through coupling of the C-60 radical anion cage. These structural features were supported by DFT calculations at the M06-2X/6-31G(d) level of theory.
DOI
10.1039/c6sc01209d
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자연과학대학 > 화학·나노과학전공 > Journal papers
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