Die Kristallstruktur von Bariumazidmonohydrat Ba(N3)2 · H2O

Abstract

Abstract The crystal structure of barium azide monohydrate Ba(N3)2 · H2O has been determined from three-dimensional photographic x-ray data and was refined by the method of least-squares to a final R = 10.3%. The unit cell is monoclinic, a = 7.29 Å, b = 10.84 Å, c = 6.96 Å, β = 104°42′, space group Cc–Cs 4 with four molecules per cell. Each barium atom is surrounded by seven end nitrogen atoms and two H2O, in the form of a distorted triangular prism with three more atoms above the centers of each of the three faces of the prism. The azide groups are linear and symmetric with an average N–N distance of 1.173 Å.