High-pressure studies of the rotor-stator compound C60-cubane

Bertil Sundqvist, Agnieszka Iwasiewicz-Wabnig, Eva Kovats, S. Pekker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Insertion of cubane (C8H8) into the octahedral voids of the COD lattice leads to the formation of an interesting rotor-stator compound which can be converted into a C60 co-polymer by heating. We have treated a number of C60·C8H8 samples for up to 3 h each in the range 380-875 K under pressures up to 2 GPa. The resulting materials were investigated by Raman spectroscopy and X-ray diffraction. Depending on treatment conditions, at least five different structural phases can be found. In addition to the four structural phases observed at atmospheric pressure and different temperatures we find that a new polymeric state is created at pressures above 1 GPa, and we tentatively identify its structure as pseudo-orthorhombic. The cubic-orthorhombic phase transition line is found to have a slope of 295 K GPa-1, much larger than the slope of the fcc-sc line in pure C60.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages93-98
Number of pages6
Volume987
Publication statusPublished - 2007
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 27 2006Nov 28 2006

Other

Other2006 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/27/0611/28/06

Fingerprint

Stators
Rotors
Atmospheric pressure
Raman spectroscopy
Polymers
Phase transitions
Heating
X ray diffraction
Temperature
fullerene C60

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Sundqvist, B., Iwasiewicz-Wabnig, A., Kovats, E., & Pekker, S. (2007). High-pressure studies of the rotor-stator compound C60-cubane. In Materials Research Society Symposium Proceedings (Vol. 987, pp. 93-98)

High-pressure studies of the rotor-stator compound C60-cubane. / Sundqvist, Bertil; Iwasiewicz-Wabnig, Agnieszka; Kovats, Eva; Pekker, S.

Materials Research Society Symposium Proceedings. Vol. 987 2007. p. 93-98.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sundqvist, B, Iwasiewicz-Wabnig, A, Kovats, E & Pekker, S 2007, High-pressure studies of the rotor-stator compound C60-cubane. in Materials Research Society Symposium Proceedings. vol. 987, pp. 93-98, 2006 MRS Fall Meeting, Boston, MA, United States, 11/27/06.
Sundqvist B, Iwasiewicz-Wabnig A, Kovats E, Pekker S. High-pressure studies of the rotor-stator compound C60-cubane. In Materials Research Society Symposium Proceedings. Vol. 987. 2007. p. 93-98
Sundqvist, Bertil ; Iwasiewicz-Wabnig, Agnieszka ; Kovats, Eva ; Pekker, S. / High-pressure studies of the rotor-stator compound C60-cubane. Materials Research Society Symposium Proceedings. Vol. 987 2007. pp. 93-98
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