[Titanscape (OP)]

It is really possible under extraordinary conditions to create a reaction between Krypton and Oxygen. I cannot remember what they are. Can you? I studied this almost fifteen years ago.

<font color="green">Titanscape</font id="green">

[Trang]

Well, I've studied that Krypton and Oxygen can be reacted, like Xe and O2, but I can't find the equation of the reaction, So sorry.
Besides O2, Krypton can be react with F2, Cl2,... like Xe but the products of Krypton isn't durable like Xe's.

[Chemistry4me]

Krypton reacts with cationic ozone derivatives in the gas phase under Fourier-transform ion cyclotron resonance conditions to yield stableKrOn+ (n = 1,2) and KrOH+ ions.