38232-63-2Relevant articles and documents
Binary polyazides of cadmium and mercury
Schulz, Axel,Villinger, Alexander
supporting information, p. 3649 - 3663 (2015/03/04)
Following our interest in binary element-nitrogen compounds we report here on the synthesis and comprehensive characterization (M.p., IR/Raman, elemental analysis, 14N/133Cd/199Hg NMR) of tri-and tetraazido cadmate and mercurate anions [E(N3)(2+n)]n- (E = Cd, Hg; n = 1, 2) in a series of [Ph4P]+ and [PNP]+ ([PNP]+ = bis(triphenylphosphine)-iminium) salts. The azide/chloride exchange in CH2Cl2 as well as the formation of tetrazolate salts in CH3CN solutions of the polyazido mercurates were investigated. Single crystal X-ray structures of all new compounds, and for comparison [Ph4P][Cd2(N3)5(H2O)], were determined. Moreover, the synthesis of anhydrous cadmium(II) azide and its DMSO adduct is presented for the first time. For a better understanding of structure and bonding in E(N3)2, [E(N3)3]- and [E(N3)4]2-, theoretical calculations at the M06-2X/aug-cc-pVDZ level were carried out.
Mercurous Azide, Hg2(N3)2
Nockemann, Peter,Cremer, Ulrich,Ruschewitz, Uwe,Meyer, Gerd
, p. 2079 - 2082 (2008/10/09)
White polycrystalline mercurous azide, Hg2(N3) 2, is obtained by combining aqueous solutions of NaN3 and Hg2(NO3)2·2H2O (made viscuous by addition of tetramethoxysilane and heating at 65°C). The crystal structure was solved and refined from X-ray powder diffraction data (monoclinic, P21/n, a = 596.07(2) pm, b = 1259.07(4) pm, c = 357.95(1) pm, β= 103.253(2)°, Z = 2, RB = 0.0519). Solid Hg2(N3)2 contains, essentially, molecules of that composition with Hg-Hg distances of 254.4(3) pm, Hg-N distances of 218(2) pm and Hg-Hg-N angles of 178.7(6)°. Weak intermolecular interactions with Hg-N distances starting at 280(3) pm lead to a three-dimensional structure.