Entrapping
a Group-VB Transition Metal, Vanadium,
within an Endohedral Metallofullerene: V<sub><i>x</i></sub>Sc<sub>3–<i>x</i></sub>N@<i>I</i><sub><i>h</i></sub>‑C<sub>80</sub> (<i>x</i> = 1, 2)
Tao Wei
Song Wang
Xing Lu
Yuanzhi Tan
Jing Huang
Fupin Liu
Qunxiang Li
Suyuan Xie
Shangfeng Yang
10.1021/jacs.5b10115.s001
https://acs.figshare.com/articles/journal_contribution/Entrapping_a_Group_VB_Transition_Metal_Vanadium_within_an_Endohedral_Metallofullerene_V_sub_i_x_i_sub_Sc_sub_3_i_x_i_sub_N_i_I_i_sub_i_h_i_sub_C_sub_80_sub_i_x_i_1_2_/2088979
So
far the entrapped metals for the isolated endohedral metallofullerenes
(EMFs) are primarily limited to rare earth metals, whereas except
group-IVB metals, whether it is possible to entrap other d-block transition
metals remains unclear. Herein we report the successful entrapment
of the group-VB transition metal vanadium(V) into fullerene cage,
affording the heretofore unknown V-containing EMFs. Two novel V-containing
EMFsV<sub><i>x</i></sub>Sc<sub>3–<i>x</i></sub>N@C<sub>80</sub> (<i>x</i> = 1, 2)were
isolated, and their molecular structures were unambiguously determined
by X-ray crystallography to be <i>I</i><sub><i>h</i></sub>(7)-C<sub>80</sub> cage entrapping the planar VSc<sub>2</sub>N/V<sub>2</sub>ScN clusters. V<sub><i>x</i></sub>Sc<sub>3–<i>x</i></sub>N@<i>I</i><sub><i>h</i></sub>(7)-C<sub>80</sub> (<i>x</i> = 1, 2) were
further characterized by UV–vis–NIR and ESR spectroscopies
and electrochemistry, revealing that the electronic and magnetic properties
of V<sub><i>x</i></sub>Sc<sub>3–<i>x</i></sub>N@<i>I</i><sub><i>h</i></sub>(7)-C<sub>80</sub> (<i>x</i> = 1, 2) are tunable upon varying the
number of entrapped V atoms (i.e., <i>x</i> value). The
molecular structures and electronic properties of V<sub><i>x</i></sub>Sc<sub>3–<i>x</i></sub>N@<i>I</i><sub><i>h</i></sub>(7)-C<sub>80</sub> (<i>x</i> = 1, 2) were further compared with those of the reported analogous
EMFs based on lanthanide metals and the adjacent group-IVB transition
metal Ti, revealing the peculiarity of the group-VB transition metal
V-based EMFs.
2016-01-13 00:00:00
Endohedral Metallofullerene
UV
VxSc
VSc 2N clusters
fullerene cage
endohedral metallofullerenes
earth metals
ESR spectroscopies
entrapped metals
EMF
lanthanide metals
entrapped V atoms
transition