A kiloton of N6 is a whole lotta molecules.
I wonder what it takes to detonate it. Does it need an oxidizer of some kind?
Apparently not according to the excerpt.
Probably just a high energy initiator.
Similar to other nigh explosives.
From the article it appears to release energy as it reverts to its lazy form, N2. (Our chemistry professor told us “matter is lazy”)
-I wonder what it takes to detonate it. Does it need an oxidizer of some kind?-
No oxidizer is needed. You have to keep N6 at super low tempatures (77 Kelvin) of it will spontaneous explode with natural N2 will be the result.
Keep it very very cold or it will explode.

“I wonder what it takes to detonate it. Does it need an oxidizer of some kind?”
Article: “given its superior energy density and that its reaction product is just N2,”
Luckily, you cannot hold that stuff in your hands.