Reversible Polymerization in Doped Fullerides Under Pressure: The Case Of C60(Fe(C5H5)2)2

被引：35

作者：

Cui, Wen ^{[1
]}

Yao, Mingguang ^{[1
]}

Liu, Dedi ^{[1
]}

Li, Quanjun ^{[1
]}

Liu, Ran ^{[1
]}

Zou, Bo ^{[1
]}

Cui, Tian ^{[1
]}

Liu, Bingbing ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2012年 / 116卷 / 09期

关键词：

X-RAY-DIFFRACTION; SOLID C-60; 2-DIMENSIONAL POLYMERS; PHASE-TRANSFORMATIONS; RAMAN-SCATTERING; TETRAGONAL C-60; FULLERENE C-60; COMPLEXES; FILMS; SPECTROSCOPY;

D O I：

10.1021/jp210712y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-pressure Raman studies have been carried out on single crystalline C-60(Fc)(2) nanosheets up to 254 GPa. Our results show that the charge transfer between Fc (ferrocene) and C-60 increases in the low-pressure range. Above 5 GPa, C-60 molecules start to form a chainlike polymer structure, and this polymerization is reversible upon decompression, in contrast to that of pristine C-60. The special layered structure of C-60(Fc)2 restricts the polymerization of C-60 molecules in some directions and explains the formation of the linear chainlike polymeric structure of the C-60 lattice under pressure. We suggest that the reversible polymerization is related to the increased charge transfer and the overridden steric repulsion of counterions.

引用

页码：2643 / 2650

页数：8

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