Fluorine Azide

In HMPA, highly fluorinated azides are prepared Catalytic hydrogenation of these compcMnds leads to the corresponding amines [89] (equation 77)... 

This unstable material usually explodes on vaporisation (at — 82°C) [1], It is extremely explosive in the liquid and solid states. A safe method has been developed for preparing the pine gas on 20 mg scale. It may be stored safely at 10-20 mbar/—80°C for several months. Cooling the gas to — 196°C, or evaporation of the liquid at a fast rate may lead to very violent explosions. Fluorine azide is now described as triazadienyl fluoride [2], as shown above. 

Reaction with sodium azide even at —78°C leads to explosions attributed to fluorine azide formation. 

Bromine azide, 0256 Chlorine azide, 4030 Cyanogen azide, 0544 Fluorine azide, 4307 Iodine azide, 4621 See metal pnictides... 

Fluorine Azide, FN, raw 61.02, N68.86%, grn-yel solid at -154°, mp explodes on evapg and at RT decomps to Na and NaFa. It was prepd by A.W. Browne J.F. Haller in 1942 by treating HN, with fluorine in a stream of Na [J.F.Haller, Dissertation, Cornell U (1942) cited by N.V.Sidgwick, The Chemical Elements and their Compounds , Vol 1 (1950) p 718 Oxford University Press, London], No further work is known to have been reported since the original prepn of fluorine azide... 

Fission Bomb, See under Atomic Bomb A499-L Fission Reaction A501-L Fluorine Azide A536-L Forcites (Belgian and French) A368 (table)... 

Ferrocene-l,l -dicarboxylic acid, 3472 Ferrocene, 3270a Ferrocenium perchlorate, 3263 l-Ferrocenyl-2-methylpropyl azide, 3654 Huoramide, see Fluoramine, 4290 Huorimide, see Difluoramine, 4305 Fluorine azide, 4301 Fluorine, 4304... 

Bromine azide, 0256 Chlorine azide, 4024 Cyanogen azide, 0541 Fluorine azide, 4301 Iodine azide, 4616 See METAL PNICTTDES... 

Fluorine azide is a greenish-yellow gas (mp — 139°C) with an odor resembling that of C102. It is best prepared from dry hydrazoic acid and fluorine diluted with nitrogen in the gas phase at 25°C (82,125). It has a planar structure with the following parameters (131, 231) ... 

Nucleophilic addition of the azide ion to fluorinated double bonds leads to the formation of a carbanion intermediate which, in the absence of protic solvents, can be trapped by electrophiles. For example, the fluorinated azide ester 2 is obtained from tetrafluoroethene (1) in high yield. ... 

N5+)2SnF6 is only marginally stable at room temperature and decomposes at slightly higher temperatures yielding N5+ SnFs" and FN5, which has a lifetime of nanoseconds and decomposes instantly to dinitrogen and fluorine azide, whose further decomposition yields several NF compounds (see Section 8.6). 

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