The same guy also prepared O4F2 (FOOOOF) and made it react with ozone (http://www.nrcresearchpress.com/doi/pdf/10.1139/v66-221):

> At 116 K (melting point of Freon-12), tetraoxygen difluoride decomposes and, if there is contact with concentrated ozone, both explode.

No shit Sherlock. :)

Strangely enough, I cannot find any paper about Streng doing explosive reactions with O3F2.