TY - JOUR
T1 - Structure and electronic properties of Dy@ C82 studied by UV-VIS absorption, X-ray powder diffraction and XAFS
AU - Iida, S.
AU - Kubozono, Y.
AU - Slovokhotov, Y.
AU - Takabayashi, Y.
AU - Kanbara, T.
AU - Fukunaga, T.
AU - Fujiki, S.
AU - Emura, S.
AU - Kashino, S.
N1 - Funding Information:
The authors are grateful to Prof. T. Tanaka and Dr. T. Yamamoto of Kyoto University for the opportunity in using a spectrophotometer, and Misses N. Sudoh, M. Fukukura, E. Matsuyama and T. Hamada, and Mr. Y. Haruyama of Okayama University for their helpful assistance in purification of Dy@C 82 . The X-ray diffraction and XAFS studies were performed under proposals of KEK-PF (99G200 and 2000G248). Y.S. is grateful to the Venture Business Laboratory of Okayama University for the financial support during his stay at the Okayama University. This work was supported by a Grant-in-Aid (11165227) from the Ministry of Education, Science, Sports and Culture, Japan.
PY - 2001/4/13
Y1 - 2001/4/13
N2 - Two isomers of Dy@C82 were separated by high performance liquid chromatography (HPLC), and their UV-VIS absorption spectra were measured to characterize these isomers. The crystalline powder of Dy@C82 was obtained by removing the solvent (toluene) at 250°C under vacuum. The X-ray diffraction pattern can be indexed with fcc crystal lattice, as that in La@C82. The lattice constant a at 298 K, 15.86(1) Å, is close to that of La@C82, 15.78 Å. The distances between Dy and the first and second nearest C atoms are determined to be 2.52(2) and 2.86(2) Å, respectively, on the basis of Dy LIII-edge EXAFS. The XANES shows that the valence of the Dy atom in Dy@C82 is +3.
AB - Two isomers of Dy@C82 were separated by high performance liquid chromatography (HPLC), and their UV-VIS absorption spectra were measured to characterize these isomers. The crystalline powder of Dy@C82 was obtained by removing the solvent (toluene) at 250°C under vacuum. The X-ray diffraction pattern can be indexed with fcc crystal lattice, as that in La@C82. The lattice constant a at 298 K, 15.86(1) Å, is close to that of La@C82, 15.78 Å. The distances between Dy and the first and second nearest C atoms are determined to be 2.52(2) and 2.86(2) Å, respectively, on the basis of Dy LIII-edge EXAFS. The XANES shows that the valence of the Dy atom in Dy@C82 is +3.
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U2 - 10.1016/S0009-2614(01)00234-2
DO - 10.1016/S0009-2614(01)00234-2
M3 - Article
AN - SCOPUS:0003027898
SN - 0009-2614
VL - 338
SP - 21
EP - 28
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1
ER -