13455-05-5Relevant articles and documents
Ba6P12N17O9Br3- A column-type phosphate structure solved from single-nanocrystal data obtained by automated electron diffraction tomography
Mugnaioli, Enrico,Sedlmaier, Stefan J.,Oeckler, Oliver,Kolb, Ute,Schnick, Wolfgang
, p. 121 - 125 (2012)
Oxonitridophosphate Ba6P12N17O 9Br3 was synthesized by heating a multicomponent mixture of BaBr2, BaS, phosphoryl triamide and thiophosphoryl triamide in an evacuated and sealed silica-glass ampoule to 750 °C. Ba6P 12N17O9Br3 was obtained as the main product as a nanocrystalline powder. The crystal structure was determined ab initio on the basis of electron diffraction data acquired from a single needle-shaped nanocrystal by automated diffraction tomography. Ba 6P12N17O9Br3 crystallizes in the hexagonal space group P63/m (no. 176) with unit cell parameters a = 14.654(19), c = 8.255(9) A and Z = 2. Its structure includes triangular, column-shaped anions of ∞ 1{(P12N17O9)9-}, which are built from vertex-sharing P(O,N)4 tetrahedra with 3-rings and three-coordinate nitrogen atoms. The 1D anions are separated by Ba2+ and Br- ions, which are arranged in channels parallel to the phosphate anions along [001]. The Ba2+ ions are eight- and nine-coordinated by Br- and O/N atoms, respectively.
Bis(dialkylthiophosphoryl)amines as metal extractants
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, (2008/06/13)
A process for extracting metal values especially zinc values from aqueous solutions of metal salts which comprises contacting the aqueous solution with an organic phase comprising a compound of the formula: STR1 wherein each of R1, R2/sup
