Extended polymerization in ABC-stacked C70 fullerite

被引：11

作者：

Marques, L. ^{[1
,2
]}

Skorokhod, Y. ^{[1
,2
]}

Soares, R. ^{[2
,3
]}

机构：

[1] Univ Aveiro, Dept Fis, P-3810 Aveiro, Portugal

[2] Univ Aveiro, CICECO, P-3810 Aveiro, Portugal

[3] Univ Aveiro, Lab Cent Anal, P-3810 Aveiro, Portugal

来源：

CARBON | 2015年 / 82卷

关键词：

PHOTOINDUCED POLYMERIZATION; PHASE-TRANSITIONS; SOLID C-70; PRESSURE;

D O I：

10.1016/j.carbon.2014.10.063

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：

This letter reports on the extended polymerization occurring in ABC-stacked C-70 fullerite, which up to now was thought to occur only in the AB-stacked phase. Frustration effects on ABC close-packing of C-70 molecules were believed to prevent extended polymerization based on 2 + 2 cycloaddition bonds, but here we show that an extended polymeric phase is obtained at 10 GPa and 270 degrees C. Its structure, obtained by Rietveld analysis of the X-ray diffraction data combined with density functional theory methods, consists of zigzag chains running within the dense hexagonal (101) pyramidal planes. (C) 2014 Elsevier Ltd. All rights reserved.

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收藏

页码：599 / 603

页数：5

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