TY - JOUR
T1 - Systematic study of lanthanoid endohedral metallofullerenes
T2 - Production yields, HPLC retention time and reactor irradiation effects
AU - Sueki, K.
AU - Akiyama, K.
AU - Zhao, Y. L.
AU - Ito, I.
AU - Ohkubo, Y.
AU - Kikuchi, K.
AU - Katada, M.
AU - Nakahara, H.
N1 - Funding Information:
The present work was partly carried out as a program approved by the reactor committee of the University of Tokyo for the cooperative use of the facilities at the Institute for Atomic Energy, Rikkyo University and also as the Visiting Researcher’s Program of the Kyoto University Research Reactor Institute. This work was partly supported by a grant given to K. S. from Ministry of Education, Science, Sports, and Culture of Japan.
PY - 2003/1/1
Y1 - 2003/1/1
N2 - We made systematic studies of lanthanoid metallofullerenes on the following three properties using the radiochemical method: (1) the relative production yields of metallofullerene species, (2) variation of the HPLC retention time among M(III)@C82 species, and (3) the effects of the reactor irradiation on the survival yields of each metallofullerene species. The production yields of M@C82 relative to La@C82 were found to decrease as the atomic number of M became larger and as the number of atom ratio, M/C, in the carbon rod became larger. On the other hand, the production yields of M1M2@C82, relative to that of LuM@C82 were found to increase for the larger atomic number. The retention time for the M(III)@C82 species in the Buckyprep column was found to become slightly longer for the larger atomic number but it becomes abruptly larger for Gd, and Tb by about 5%. The overall effects of the reactor irradiation on the survival yields (or retention yields) of M@C82 species were found to be (19.7±2.1)%.
AB - We made systematic studies of lanthanoid metallofullerenes on the following three properties using the radiochemical method: (1) the relative production yields of metallofullerene species, (2) variation of the HPLC retention time among M(III)@C82 species, and (3) the effects of the reactor irradiation on the survival yields of each metallofullerene species. The production yields of M@C82 relative to La@C82 were found to decrease as the atomic number of M became larger and as the number of atom ratio, M/C, in the carbon rod became larger. On the other hand, the production yields of M1M2@C82, relative to that of LuM@C82 were found to increase for the larger atomic number. The retention time for the M(III)@C82 species in the Buckyprep column was found to become slightly longer for the larger atomic number but it becomes abruptly larger for Gd, and Tb by about 5%. The overall effects of the reactor irradiation on the survival yields (or retention yields) of M@C82 species were found to be (19.7±2.1)%.
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U2 - 10.1023/A:1022256520558
DO - 10.1023/A:1022256520558
M3 - Article
AN - SCOPUS:0037285772
SN - 0236-5731
VL - 255
SP - 159
EP - 164
JO - Journal of Radioanalytical and Nuclear Chemistry
JF - Journal of Radioanalytical and Nuclear Chemistry
IS - 1
ER -