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ChemInform Abstract: Ternary Nitridoborates. Part 1. LiMg(BN2) (I) and Ba4(BN2)2O (II) - Compounds with the Anion (N-B-N)3-: Syntheses, Crystal Structures, and Vibrational Spectra.

✍ Scribed by M. SOMER; U. HERTERICH; J. CURDA; W. CARRILLO-CABRERA; K. PETERS; H. G. VON SCHNERING

Publisher: John Wiley and Sons
Year: 2010
Weight: 29 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199715009

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✦ Synopsis

Nitridoborates. Part 1. LiMg(BN2) (I) and Ba4(BN2)2O (II) -Compounds with the Anion (N-B-N)3-: Syntheses, Crystal Structures, and Vibrational Spectra.

-The title compounds are prepared by solid state reaction of stoichiometric mixtures of Li3N, Mg3N2, and BN for (I) and BaO, Ba3N2, and BN for (II) (sealed Nb-tubes, 1575 and 1350 K, respectively). (I) crystallizes in the tetragonal space group I4/mmm with Z = 2 and (II) is orthorhombic, Cmca, Z = 4. Both compounds contain isolated (N-B-N)3-anions packed in different ways. The IR and Raman spectra are discussed and the valence force constant of the B-N bond is calculated. -

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## Abstract The title compound is prepared by solid state reaction of a stoichiometric mixture of Mg~3~N~2~, BN, and MgBr~2~ (sealed Nb ampule, 1473 K, 24 h, slow cooling).