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Structural Properties Of Hexaphenyl Powder Under High Pressure

Published online by Cambridge University Press:  10 February 2011

S. Guha
Affiliation:
Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, U.S.A.
W. Graupner
Affiliation:
Institut für Festköperphysik, Technische Universität Graz, A-801 0 Graz, Austria.
R. Resel
Affiliation:
Institut für Festköperphysik, Technische Universität Graz, A-801 0 Graz, Austria.
M. Chandrasekhar
Affiliation:
Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, U.S.A.
H. R. Chandrasekhar
Affiliation:
Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, U.S.A.
G. Leising
Affiliation:
Institut für Festköperphysik, Technische Universität Graz, A-801 0 Graz, Austria.
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Abstract

We present X-ray and Raman studies of the conjugated oligomer, hexaphenyl, which forms polycrystalline layers. The Raman studies have been carried out under hydrostatic pressures up to 70 kbar. The relative intensity of the two modes at 1220 cm−1 and 1280 cm−1 shows the influence of planarization under hydrostatic pressure. These results are interpreted within the framework of theoretical calculations and compared with X-ray studies.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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