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  Sr5[NbN4]N - A Nitridoniobate(V) Nitride Containing Isolated [NbN4]7- Tetrahedra and Octahedral Chains 1(Sr4Sr2/2N7+)

Höhn, P., & Kniep, R. (2002). Sr5[NbN4]N - A Nitridoniobate(V) Nitride Containing Isolated [NbN4]7- Tetrahedra and Octahedral Chains 1(Sr4Sr2/2N7+). Zeitschrift für Anorganische und Allgemeine Chemie, 628(2), 463-467. doi:10.1002/1521-3749(200202)628:2<463:AID-ZAAC463>3.0.CO;2-2.

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 Creators:
Höhn, P.1, Author           
Kniep, R.2, Author           
Affiliations:
1Peter Höhn, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863419              
2Rüdiger Kniep, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863437              

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Free keywords: nitridometalates; nitridoniobates; strontium; niobium; crystal structure
 Abstract: Sr-5[NbN4]N (transparent, red single crystals) was synthesized by reaction of Sr2N with Nb under nitrogen at ambient pressure and 1223 K. The crystal structure was solved and refined in the space group Pbcm (no. 57), Z = 4, with lattice constants a = 646.6(3) pm, b = 1792.5(9) pm, c = 729.8(4) pm, and R = 0.019, wR2 = 0.034. The crystal structure contains both isolated tetrahedra [NbN4](7-) as well as chains of corner sharing octahedra (1)(infinity)(Sr4Sr2/2N7+). Strontium is irregularly coordinated by nitrogen (CN = 4 - 6, Sr-N: 252.3(4) - 340.8(3) pm); nitrogen is located in a distorted octahedral environment by strontium and niobium (Nb-N: 194.5(4) - 199.2(2) pin). By formal reduction of the structural building units to their centers a close structural relationship to both the NiAs and the CaSi type structure is evident.

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Language(s): eng - English
 Dates: 2002-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Zeitschrift für Anorganische und Allgemeine Chemie
  Alternative Title : Z. Anorg. Allg. Chem.
Source Genre: Journal
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Pages: - Volume / Issue: 628 (2) Sequence Number: - Start / End Page: 463 - 467 Identifier: ISSN: 0044-2313