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Na3N—An Original Synthetic Route for a Long Sought After Binary Nitride

“…[6] A high-pressure phase g-P 3 N 5 was prepared from a highpressure high-temperature synthesis in a multi-anvil arrangement. [7] The diazenides (or pernitrides) SrNSr 4 [8] and Ba[N 2 ] [9] were obtained for the first time under high nitrogen-gas-pressures of 400 bar to 5500 bar, while the barium compound apparently also can be prepared under low pressure by careful decomposition of barium azide. The diazenides can be considered as analogues of the peroxides and thus, together with the long-known azide ions, link the series to the polynitrogen compounds and ions, such as N 4 [10] and N 5 (which was stabilized with the anion of a super acid, N 5 AsF 6 À ).…”

Speciation of nitrogen – [N3–] and [N2 2–] – in binary compounds

“…In most cases their nitrogen content is determined by crystal structure investigations (X-ray and neutron data) [1,2,3]. Our aim was to acquire an independent method to complement and confirm these diffraction studies [1]. One suitable method for the direct analysis of nitrogen is the carrier gas hot extraction, which is commonly only used for the detection of nitrogen in traces.…”

“…The analytical results of the diazenides SrN = Sr 4 [N 2 ][N] 2 , Sr[N 2 ], and Ba[N 2 ] are in very good agreement with the crystal structure determination by neutron diffraction [1,2]. The arrangement of the nitrogen species, that is, in the crystal structure of SrN = Sr 4 [N 2 ][N] 2 , is shown in Fig.…”

“…This, of course, is also true for nitrides and nitrido compounds. In most cases their nitrogen content is determined by crystal structure investigations (X-ray and neutron data) [1,2,3]. Our aim was to acquire an independent method to complement and confirm these diffraction studies [1].…”

Synthesis and high metallic conductivity of layer-structured Sr2N thin film deposited onto MgO(0 0 1) substrate

“…A similar character was pointed out for Ca 2 N [4]. Recently, a series of new compounds Sr 4 N 3 , SrN, and SrN 2 have been reported as derivatives of Sr 2 N [5,6]. Their crystal structures can be derived as a result of intercalation of different amounts of N 2 2− anions into the gaps of Sr 2 N.…”