Crystal structure of the high-pressure phase of hexahydro-1,3,5-trinitro-1,3,5-triazine (gamma-RDX).
The crystal structure of the high-pressure phase of hexahydro-1,3,5-trinitro-1,3,5-triazine (gamma-RDX), which is stable above 4 GPa at room temperature, was investigated by using infrared spectroscopy and powder X-ray diffraction measurements followed by Rietveld refinements using a diamond anvil cell (DAC). Although gamma and alpha phases were found to belong to the same space group Pbca, they exhibited a different crystal packing. The molecular structure of the gamma phase exhibited the same conformation as that of the alpha phase; however, the torsion angles of N-NO2 changed marginally.
Goto
Naoyuki
N
Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Tokyo 113-8656, Japan.
Fujihisa
Hiroshi
H
Yamawaki
Hiroshi
H
Wakabayashi
Kunihiko
K
Nakayama
Yoshio
Y
Yoshida
Masatake
M
Koshi
Mitsuo
M