Open AccessIs Fullerene C60 Large Enough to Host a Multiply Bonded Dimetal?
Author(s) -
Ivan Infante,
Laura Gagliardi,
Gustavo E. Scuseria
Publication year - 2008
Publication title -
journal of the american chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.115
H-Index - 612
eISSN - 1520-5126
pISSN - 0002-7863
DOI - 10.1021/ja800847j
Subject(s) - chemistry , fullerene , diatomic molecule , crystallography , molecule , center (category theory) , quantum chemical , transition metal , metal , bond length , stereochemistry , computational chemistry , crystal structure , organic chemistry , catalysis
Some dimetal fullerenes M 2@C 60 (M = Cr, Mo, W) have been studied with computational quantum chemistry methods. The transition metal diatomic molecules Cr 2, Mo 2, W 2 form exohedral complexes with C 60, while U 2 forms a highly symmetric endohedral compound and it is placed in the center of the C 60 cavity. This highly symmetric structure is an artifact due to the small size of the C 60 cavity, which constrains U 2 at the center. If a larger cavity is used, like C 70 or C 84, U 2 preferentially binds the internal walls of the cavity and the U-U bond no longer exists.
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