Abstract
Ba16NbsN19 was synthesized by reaction of Ba with Nb under nitrogen at ambient pressure at 1223 K. The refined crystal structure was solved in the space group P1̄ (no. 2), Z = 2, with the lattice constants a = 1099.33(3), b = 1140.41(15), c = 1622.06(6) pm, α = 72.197(2)°, β = 59.949(1)°, γ = 82.243(2)° and R1 = 0.058, wR2 = 0.088. The crystal structure contains both isolated [NbN4]7- as well as dimeric units [Nb2N7 ]11- . Together with the Ba2+ ions the compound has to be regarded as Ba16 [NbN4]3[Nb2N7 ].
Keywords : Nitridometalate; Nitridoniobate
Received: 2001-4-18
Published Online: 2014-6-2
Published in Print: 2001-7-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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