Extended polymerization in ABC-stacked C-70 fullerite

authors	Marques, L; Skorokhod, Y; Soares, R
nationality	International
journal	CARBON
keywords	PHOTOINDUCED POLYMERIZATION; PHASE-TRANSITIONS; SOLID C-70; C-60; POLYMERS; FILMS
abstract	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.
publisher	PERGAMON-ELSEVIER SCIENCE LTD
issn	Aug-23
year published	2015
volume	82
beginning page	599
ending page	603
digital object identifier (doi)	10.1016/j.carbon.2014.10.063
web of science category	Chemistry, Physical; Materials Science, Multidisciplinary
subject category	Chemistry; Materials Science
unique article identifier	WOS:000345683100062