The two solid phases of deuterated ethylene (C2D4) have been investigated using neutron diffraction. The recently detected high pressure phase II is found to form a bcc structure of the space group Im3m with the molecules orientationally disordered. For the normal solid phase I the measurements confirm the orientationally ordered arrangement belonging to the space group P21/n.
|Number of pages||3|
|Journal||The Journal of Chemical Physics|
|State||Published - 1976|