Xenon oxytetrafluoride () is an inorganic chemical compound. It is an unstable colorless liquid with a melting point of that can be synthesized by partial hydrolysis of , or the reaction of with silica or :
A high-yield synthesis proceeds by the reaction of with at .
Like most xenon oxides, it is extremely reactive, and it hydrolyses in water to give hazardous and corrosive products, including hydrogen fluoride:
In addition, some ozone and fluorine is formed.
reacts with in the following steps:
The formed is a dangerous explosive, decomposing explosively to Xe and :
In its liquid form, exhibits amphoteric behaviour, forming complexes with both strong Lewis bases like and strong Lewis acids like . It forms a 1:1 adduct with , isostructural with ÷, as well as various heavy alkali metal fluorides.
The reaction of with provides a convenient synthesis route for .