Uranium azide

Chromyl azide chloride Molybdenum azide pentachloride Molybdenum azide tetrachloride Silver azide chloride Tin azide trichloride Titanium azide trichloride Tungsten azide pentabromide Uranium azide pentachloride Vanadium azide dichloride Vanadyl azide tetrachloride... 

Normal azides are not known in group IIIB. Curtius and Darapsky [135] attempted to make them by dissolving, for example, lanthanum hydroxide in hydrazoic acid. The solution was assumed to contain the normal azide but only basic products were precipitated upon evaporation or by adding alcohol. The precipitate was insoluble in water, had the approximate composition La(OH)(N3)2 I.5H2O, and deflagrated upon heating. The same results were found with yttrium, cerium, dysprosium, thorium, and uranium azides. Based on the infrared spectra, Rosenwasser and Bryant [136] suggested two types of basic rare earth azides. The lanthanum type (a) was found for lanthanum, neodymium. 

Thomson RK, Cantat T, Scott BL, Morris DE, Batista ER, Kiplinger JL. Uranium azide photolysis results in C—H bond activation and provides evidence for a terminal uranium nitride. Nat Chem. 2010 2 723-729. 

Chloroform extraction of uranium quinoline complex Uranium adsorbed as azide on basic ion exchange column, uranium desorbed with 1 M hydrochloric acid Uranium adsorbed on bismuthol(II) modified anion exchange resin, desorbed with 0.1 M cysteine Uranium, by square wave adsorptive stripping voltammetry... 

The uranium(IV) heptaazide anion IhTG)2- has been synthesized as the n-tetrabutylammonium salt. This is the first homoleptic azide of an actinide... 

Organometallic complexes of uranium(vi) with organoimido and oxo functional groups Cp 2U(=NR)(=E) (E = NR or O) have also been prepared by two-electron oxidative atom transfer using organic azides, amine A-oxides or nitrous oxide. Another way of generating the compounds is reductive cleavage of 1,2-disubstituted hydrazines (Scheme 54).119-121... 

Anionic sulphate [42,43], thiocyanate [44], nitrate [45,46], phosphate [47], and azide [48] complexes have been used for the separation of uranium by means of anion-exchangers. Uranium is usually eluted from the column with hydrochloric acid (0.2-1 M). 

More detailed experiments were conducted by Bowden and Singh [38, 39]. Crystals of lead and cadmium azides and nitrogen iodide (coated with uranium oxide) were irradiated with slow neutrons only nitrogen iodide exploded. Lead... 

Bowden and Singh [37] irradiated lead and cadmium azides with a-particles and 7-radiation at 290°C when mixed with uranium oxide without initiations occurring. 

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