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Characterization of C60 Fullerene in Carbon Disulfide Solvent Using Intermediate Angle Neutron Scattering

Published online by Cambridge University Press:  15 February 2011

Steve Spooner ,
J. L. Zarestky  and
K. A. Affholter
Steve Spooner
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
J. L. Zarestky
Affiliation:
Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011
K. A. Affholter
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, TN 37831
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Abstract

In recent characterization of fullerenes by small angle neutron scattering use was made of the Guinier scattering regime to determine the radius of gyration of the fullerene molecules. In the present work the HB-1A spectrometer at the High Flux Isotope Reactor at Oak Ridge National Laboratory was used to measure the scattering from C60 in CS2 solvent. The scattering covers a range which includes scattering intensity oscillations associated with the C60 shell structure. These oscillations are used to measure the C60 molecule size. Assumption of a carbon shell radius of 3.57Å fits the scattering minima. This radius and the assumption of a solvent cavity radius of 5.93 Å gives a good fit to the whole scattering range. However, modeling to remove a remaining scattering intensity discrepancy at low angles requires the addition of a small solvent density excess near the C60 molecule.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 359: Symposium G – Science and Technology of Fullerene Materials , 1994 , 543
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

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