THE CRYSTAL-STRUCTURE OF POLY(DI-N-HEXYL-SILANE) AND ITS ORIENTATION IN THE FILM

This paper describes the reasonable molecular configuration and inter-molecular packing of the poly(di-n-hexyl-silane) crystal. The crystal lattice is determined using a wide-angle x-ray diffraction method for the powdered specimen. The experimental diffraction pattern is compared with the theoretical. one, in order to clarify the atom positions in the unit cell. The obtained unit cell contains the two polymer chains having an all-trans silicon backbone. The hexyl substituents are found to be asymmetrical conformations because of the steric hindrance. The orientation of the prepared thin film is also discussed on the basis of the obtained crystal structure.