F6 Xe2 Burns J, Ellison R, Levy H Journal of Physical Chemistry 67 (1963) 1569-1570 The crystal structure of the molecular addition compound xenon difluoride-xenon tetrafluoride _cod_database_code 1008065 _database_code_amcsd 0016007 6.64 7.33 6.4 90 92.67 90 P2_1/c atom x y z Xe1 0 0 0 Xe2 .5 0 .5 F1 .168 -.187 .153 F2 .505 .079 .212 F3 .240 .109 .516