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Stratification of Fullerenes

Published online by Cambridge University Press:  22 February 2011

K. Levon ,
D. Weng ,
J. Mao  and
H.K. Lee
K. Levon
Affiliation:
Department of Chemistry, Polytechnic University, 6 Metrotech Center, Brooklyn, NY 11201, and J.M. TOUR, W.A. SCHRIVENS, Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208
D. Weng
Affiliation:
Department of Chemistry, Polytechnic University, 6 Metrotech Center, Brooklyn, NY 11201, and J.M. TOUR, W.A. SCHRIVENS, Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208
J. Mao
Affiliation:
Department of Chemistry, Polytechnic University, 6 Metrotech Center, Brooklyn, NY 11201, and J.M. TOUR, W.A. SCHRIVENS, Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208
H.K. Lee
Affiliation:
Department of Chemistry, Polytechnic University, 6 Metrotech Center, Brooklyn, NY 11201, and J.M. TOUR, W.A. SCHRIVENS, Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208
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Abstract

Dodecylated C60 {(Do)nC60(H)n} and butylated C60 {(Bu)nC60(H)n} were synthesized. Spectroscopic and thermal methods, mass spectrometry, XPD, have been employed to characterize the products. X-ray Powder Diffraction (XPD) results reveal that the facecentered- cubic (fcc) structure of C60 expands to a primitive hexagonal structure upon butylation and to a layered structure upon dodecylation. Butylated C60 diffraction pattern has been indexed as a primitive hexagonal structure with ao = 11.5 angstroms and axial ratio = 1.169. The dodecylated C60 also shows sidechain melting behavior with a transition temperature of around 25°C. The paraffinic crystals are produced by the interdigitation of the sidechains. Butylated C60 does not show any sidechain melting.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 349: Symposium T – Novel Forms of Carbon II , 1994 , 127
Copyright
Copyright © Materials Research Society 1994

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References

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