A new carbon phase constructed by long-range ordered carbon clusters from compressing C70 solvates.

Cui, Wen; Yao, Mingguang; Liu, Shijie; Ma, Fengxian; Li, Quanjun; Liu, Ran; Liu, Bo; Zou, Bo et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

An ordered amorphous carbon cluster (OACC) structure with building blocks of highly deformed/collapsed C70 is synthesized by compressing C70 *m-xylene, which exhibits an exceptionally high hardness. Different from compressing C60 *m-xylene, a new structure transition is observed in C70*m-xylene at above 30 GPa, indicating the formation of a new OACC structure under pressure.