Structural and electrochemical studies of Sm@D3h-C74 reveal a weak metal-cage interaction and a small band gap species

被引：19

作者：

Xu, Wei ^{[3
]}

Hao, Yajuan ^{[1
,2
]}

Uhlik, Filip ^{[5
]}

Shi, Zujin ^{[3
]}

Slanina, Zdenek ^{[4
]}

Feng, Lai ^{[1
,2
]}

机构：

[1] Soochow Univ, Jiangsu Key Lab Thin Films, Suzhou 215006, Peoples R China

[2] Soochow Univ, Sch Energy, Suzhou 215006, Peoples R China

[3] Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

[4] Natl Inst Nat Sci, Inst Mol Sci, Dept Theoret & Computat Mol Sci, Okazaki, Aichi 4448585, Japan

[5] Charles Univ Prague, Fac Sci, Dept Phys & Macromol Chem, Prague 12843 2, Czech Republic

来源：

NANOSCALE | 2013年 / 5卷 / 21期

基金：

中国国家自然科学基金;

关键词：

SITE-HOPPING MOTION; SPECTROSCOPIC CHARACTERIZATION; CRYSTALLOGRAPHIC CHARACTERIZATION; ENDOHEDRAL FULLERENES; METALLOFULLERENE; THERMOCHEMISTRY; ELUCIDATION; ATOM;

D O I：

10.1039/c3nr03447j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A metallofullerene Sm@D-3h-C-74 that contains a divalent rare-earth metal has been studied structurally and electrochemically. The crystallographic analysis revealed that the endohedral Sm atom is more or less motional rather than being localized at a site where the pyracylene motif is nearby. This suggests a weaker metal-pyracylene interaction in Sm@D-3h-C-74 relative to that in MII@C-74 (M Group II metal), thus confirming the importance of the metal variety. The electrochemical studies showed a major difference between the redox properties of Sm@D-3h-C-74 and other Sm-fullerenes and indicated a small band gap for the title compound.

引用

页码：10409 / 10413

页数：5