[1][2] This compound is formed via the reaction:[3] Purification of FXeONO2 can then take place by dissolving in SO2ClF, which leaves the nitronium arsenic hexafluoride behind as a solid.

[3] An alternate low yield method to make FXeONO2 is to dissolve xenon difluoride in liquid dinitrogen tetroxide at 0 °C.

[3] Another method claimed to make this substance is:[3] FXeONO2 is a white crystalline material.

The unit cell contains four molecules with a total volume of 386.6 Å3.

[3] The bond lengths and angles on the xenon atom are similar to that in FXeOSO2F and FXeOTeF5, indicating a polar oxygen bond.