Reaction of [Xe-F]+ with HI

The x-ray structure determination and semiempirical PM3 calculations of 2,4,4,6,6-pentachloro-2-(piperidyl)cyclotri(phosphazene)

“…†Non-SI units employed: kcal Ϸ 4.184 kJ, Å ‫ס‬ 10 ‫01מ‬ m (since these units are still used in computational chemistry, we employed them throughout the article). ing azides P 3 N 3 (N 3 ) 4 (NC 5 H 10 ) 2 and P 3 N 3 (N 3 ) 3 (NC 5 H 10 ) 3 [1]. We were able to establish that the semiempirical PM3 level of theory is suitable to predict the structures of phosphazene derivatives in a very cpu time efficient way.…”

The preparation and x-ray structure of [P(C2H5)4]+[N3]? and the attempted preparation of [PH4]+[N3]?

“…The vacuum lines, handling techniques, and spectrometers used in this study have been described elsewhere [4,5,7]. All solvents were commercial materials and were dried and purified by condensation prior to use (CH 2 Cl 2 , Fissons, P 4 O 10 ; THF, Fissons, Na; SO 2 , BOC, CaH 2 ; SO 2 ClF, Aldrich, CaH 2 ; HF, Merck, BiF 5 ).…”

“…Covalently bound group 15 azides can conveniently be prepared from the corresponding halides and either sodium or silver azide [2]. For example, the following compounds were synthesized from the chloride precursors: [PN(N 3 ) 2 ] 3 [1b,3], P 3 N 3 (N 3 ) 5 (NC 5 H 10 ) 1 [4], P 3 N 3 (N 3 ) 4 (NC 5 H 10 ) 2 [5], P 3 N 3 (N 3 ) 3 (NC 5 H 10 ) 3 [5], E(N 3 ) 3 (E ‫ס‬ P, As, Sb, Bi) [2,6a-d], P(N 3 ) 5 [6e], and [PCl 6‫מ‬n …”

Azide‐Containing High Energy Materials

“…Whereas with 4 -azidobenzyl amine the expected product, hexakis -4 -azidobenzyl -hexaazaisowurtzitane, is formed ( Figure 13.6 ), with the ortho -isomer 2 -azidobenzylamine an additional unusual, novel heterocycle is formed (Scheme 13.13 , Figure 13.7 ). 62 Structural evidence exists for one of the precursors, 3,4 -diazidobenzyl bromide, and is shown in Figure 13.8 . The precursor, 2 -azido -4toluidine, can be prepared by a four -step synthesis, with commercially available 2 -nitro -4 -toluidine as the starting material.…”

“…73 Several salts of CHN 7 , azidotetrazolates, have been synthesized and their energetic properties studied. 75 This 1 -diazidomethylenamino substituted 5 -azidotetrazole (structure proven by X -ray crystallography), can be obtained in good yields, and is extremely sensitive (friction < 5 N, impact < 0.5 J). 74 A rather surprising and unusual result was observed in an attempt to prepare 1 -amino -5 -azido -tetrazole from triaminoguanidinium chloride (Scheme 13.17 ).…”