Reaction between azide and nitronium ions. Formation and decomposition of nitryl azide

SN2P2: A Neutral Five‐Membered Sulfur–Pnictogen(III) Ring

“…In conclusion, a novel neutral inorganic sulfur-pnictogen-(III) five-membered ring, cyclo-SNPNP, bearing 6 p electrons, was produced in the gas phase. Its identification was established by IR spectroscopy, 15 N labeling, and computations. Its formation is computationally rationalized by a facile concerted head-to-tail dimerization of 1,3-dipolar SNP to a six-membered-ring intermediate cyclo-SNPSNP, followed by sulfur elimination.…”

“…[13] Through the latter approach it is possible to study its dimerization. Dimerization of its congeners N 2 O, N 2 S, and OPN has not yet been observed, although their formal dimers, N 4 O 2 , [15] N 4 S 2 , [4a] and O 2 P 2 N 2 , [16] have been studied theoretically.…”

Novel gaseous transient species: Generation and characterization

“…Both compounds have been theoretically predicted to be energetically stable, but decompose completely to [97] . However, the results were proved to be incorrect in 1994 by Klapötke et al; through the reaction of NaN 3 with NO 2 SbF 6 in CO 2 at −49℃, they reported the evidence for the formation of this compound, according to the low temperature Raman results, in combination with theoretical calculations [98] .…”

Catalytic Hydrogenation of Azide Ion in Process Waste Waters

“…In strong acidic medium hydrazoic acid can be decomposed by several reagents, for example with Ce IV , but before this procedure the waste has to be neutralized and acidified-this produces a large amount of salt solutions. Ozone oxidizes azide in alkaline solutions, but such a reaction is unlikely to provide a disposal technology for higher concentration azide solutions [2][3][4][5].…”

“…The device was purged with nitrogen and hydrogen, pressurized to 10 bar and the stirring commenced. The feed of the azide solution (1500 ppm azide, 25% NaOH) was started and continued until the fed amount was 500-600 cm 3 . During and after the reaction samples were withdrawn trough a sampling tube reaching the bottom of the vessel.…”