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13 C and 139 La NMR Studies of La 2 @C 80 : First Evidence for Circular Motion of Metal Atoms in Endohedral Dimetallofullerenes
Author(s) -
Akasaka Takeshi,
Nagase Shigeru,
Kobayashi Kaoru,
Wälchli Markus,
Yamamoto Kazunori,
Funasaka Hideyuki,
Kako Masahiro,
Hoshino Tsutomu,
Erata Tomoki
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199716431
Subject(s) - crystallography , metal , chemistry , physics , atomic physics , organic chemistry
Clear confirmation of recent theoretical studies concerning the structure of the endohedral complexes formed by La and C 80 is provided by the NMR spectroscopic investigations presented here Complex La 2 @C 80 is present, and its structure is based on the unstable “empty” I h isomer of C 80 . The two La atoms circulate inside this round cage even at room temperature (shown schematically on the right).