Verfeinerung der Kristallstruktur von Bariumazid Ba(N₃)₂

Barium thiocyanate trihydrate

“…The cation coordination in Ba(SCN)2.-3H20 closely resembles those found in Ba(N3) 2. H20 (Walitzi & Krischner, 1973) and Ba(N3) 2 (Choi, 1969;Walitzi & Krischner, 1970). In the first, Ba is surrounded by seven N at 2.85-3.00 A and two O (H20 bridging two Ba) at 2.85-2.98 A.…”

Crystal chemistry of inorganic nitrides

“…Its monoclinic structure assigns Ba to irregular 7 and 8-coordination. The hydrogen atoms were not tkmnd [166], Barium azide has a structure related to that of PbFCI [167]; the azide ions afford regular 9-coordination for the barium ions lsee Fig. 19).…”

RbBa2(N3)5: a new ternary azide

“…Alkaline earth metal azides have not been used as extensively for this purpose owing to their somewhat more violent thermal decomposition and the greater effort needed to obtain solvent-free azides. Anhydrous barium azide can be relatively easily obtained because of the large cation size; its crystallization (Manno, 1965;Marinkas, 1966) and crystal structure (Choi, 1969;Walitzi & Krischner, 1970) attracted some attention previously because of its potential as a high-energy material. Recently, it was shown that Ba(N 3 ) 2 can be employed as a valuable precursor, e.g.…”

“…Additionally, a number of hydrated azides have been described, viz. K 2 Ca(N 3 ) 4 Á4H 2 O (Krischner et al, 1980), Rb 2 Ca(N 3 ) 4 Á4H 2 O (Mautner & Krischner, 1988), CsCa(N 3 ) 3 ÁH 2 O , Cs 5 Ca 2 (N 3 ) 9 Á2H 2 O , Cs 6 Ca(N 3 ) 8 Á2H 2 O (Krischner, Saracoglu et al, 1983) and K 2.24 Sr 1.34 (N 3 ) 4.92 Á6.16H 2 O (Walitzi & Krischner, 1978).…”