Notizen: Zur Kenntnis eines Bortriazids B(N₃)₃

Abstract

Borwasserstoff setzt sich in ätherischer Lösung mit Stickstoffwasserstoffsäure gemäß der GleichungBH3 + 3 HN3→B(N3)3 + 3 H2unter Bildung eines im hexagonalen System kristallisierenden, im Hochvakuum flüchtigen, ätherlöslichen, feuchtigkeits-empfindlichen, farblosen, hochexplosiven Borazids B(N3)3 um, das die bis jetzt nur durch das Bornitrid BN vertretene Klasse der Bor-Stickstoff-Verbindungen um ein sehr stickstoffreiches Glied BN9 (92,1% N) bereichert. Mit Lithium- und Natriumazid vereinigt sich das Borazid zu tetrahydrofuran-löslichen Doppelaziden der Zusammensetzung MeB(N3)4. Die diesen Doppelaziden zugrundeliegende komplexe Säure HB(N3)4 ist bei tiefen Temperaturen in freiem Zustande existenzfähig.

Synthesis and Functionalization of 5‐Substituted Tetrazoles

“…[60] Later, this Lewis acid was prepared in a safer way by treatment of aluminum chloride with sodium azide in THF. [60] Later, this Lewis acid was prepared in a safer way by treatment of aluminum chloride with sodium azide in THF.…”

Synthesis, Solid‐State Structure, and Bonding Analysis of a Homoleptic Beryllium Azide

“…Beryllium azides tend to form predominantly ionic bonds, but are also expected to show covalent bonding contributions owing to the small size of the Be 2+ ion and its high charge density.However,even though Be(N 3 ) 2 [1] and solvent-coordinated beryllium azide complexes L 2 Be(N 3 ) 2 (L = THF,p yridine) [2] have been synthesized, their solid-state structures are unknown. Only two heteroleptic beryllium azides [Ph 4 )-[(C 12 H 26 N 2 )BeCl(N 3 )]) have been structurally characterized.…”

“…[1,2] Tw oa dditional resonances were observed in both spectra at À131 and À276 ppm, which are due to the presence of free N 3 À ( Figure S32). [12] As decomposition reactions can be excluded in [D 6 ]DMSO,weperformed temperature-dependent 9 Be and 14 NN MR experiments with 2.T he 14 NN MR spectra clearly showed the existence of an equilibrium in solution that is fully temperature-reversible (Figure 1).…”

Theoretical study of the decomposition mechanism of a series of group III triazides X(N3)3 (X = B, Al, Ga)

“…In recent years, group III azides have attracted considerable interest for their potential use as candidates for high energy density materials (HEDMs) . Boron triazide, B(N 3 ) 3 , has been known for nearly 60 years, since it was firstly synthesized in 1954 by the reaction of diborane with HN 3 in an ether solution at low temperature by Wiberg and Michaud . In 1995, Mulinax et al reported gas‐phase synthesis boron triazide by a spontaneous room temperature reaction between HN 3 and BC1 3 .…”