Abstract:Na3[BN2] and Na2K[BN2]: A Known and a Novel Alkali Metal DinitridoborateObtained via Mild Thermal Dehydrogenation. -Na 3 [BN 2 ] (I) and Na 2 K[BN 2 ] (II) are obtained from the reaction of the respective binary mixtures NaNH2:NaBH4 and NaNH2:KBH4 in a molar ratio of 2:1 via thermal dehydrogenation (873 K and 683 K, resp., under Ar). They are thermally stable up to 954 K (I) and 712 K (II) and decompose under evolution of alkali metal and nitrogen to yield hexagonal BN as final residue. The compounds crystalli… Show more
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