TY - JOUR
T1 - Electronic structure of Eu@C60 studied by XANES and UV-VIS absorption spectra
AU - Inoue, T.
AU - Kubozono, Y.
AU - Kashino, S.
AU - Takabayashi, Y.
AU - Fujitaka, K.
AU - Hida, M.
AU - Inoue, M.
AU - Kanbara, T.
AU - Emura, S.
AU - Uruga, T.
N1 - Funding Information:
The authors are grateful to Professor Hisanori Shinohara of Nagoya University, Professor Yoshihiro Iwasa of JAIST, Dr. Kenji Ishii of the University of Tokyo, Professor Tunehiro Tanaka of Kyoto University and Professor Takeshi Akasaka of Niigata University for their valuable discussion. The XANES and XAFS studies were performed under a proposal of SPring-8 (1998A0048-CX-np) and a proposal of KEK-PF (98G-289), respectively. This work is supported by a Grant-in-Aid (11165227) from the Ministry of Education, Science, Culture and Sports, Japan.
PY - 2000/1/21
Y1 - 2000/1/21
N2 - Eu endohedral C60, Eu@C60, has been extracted with aniline from soot prepared by arc-heating of a graphite/Eu2O3 composite rod and obtained at high concentration by combining sublimation and repeated high-performance liquid chromatography. The laser desorption time-of-flight mass spectrum showed a pronounced peak of Eu@C60+. The UV-VIS absorption spectrum of this sample has a red-shift in the onset (>900 nm) in comparison with those for C60 and C70, as expected from electron transfer from the Eu atom to the C60 cage. The valence state of the Eu atom in Eu@C60 has been determined to be +2 by Eu LIII-edge XANES.
AB - Eu endohedral C60, Eu@C60, has been extracted with aniline from soot prepared by arc-heating of a graphite/Eu2O3 composite rod and obtained at high concentration by combining sublimation and repeated high-performance liquid chromatography. The laser desorption time-of-flight mass spectrum showed a pronounced peak of Eu@C60+. The UV-VIS absorption spectrum of this sample has a red-shift in the onset (>900 nm) in comparison with those for C60 and C70, as expected from electron transfer from the Eu atom to the C60 cage. The valence state of the Eu atom in Eu@C60 has been determined to be +2 by Eu LIII-edge XANES.
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U2 - 10.1016/S0009-2614(99)01309-3
DO - 10.1016/S0009-2614(99)01309-3
M3 - Article
AN - SCOPUS:0001422342
SN - 0009-2614
VL - 316
SP - 381
EP - 386
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 5-6
ER -