35038-46-1Relevant articles and documents
The CN7- anion
Klapoetke, Thomas M.,Stierstorfer, Jorg
experimental part, p. 1122 - 1134 (2009/06/28)
Several salts containing the CN7- anion were prepared by deprotonation of 5-azido-1 H-tetrazole (1). The highly explosive compounds hydrazinium (2), ammonium (3), aminoguanidinium (4), guanidinium (5), lithium (6), sodium (7), potassium (8), cesium (9), and calcium (10) azidotetrazolate were characterized by low temperature single X-raydiffraction. Other analytic methods, such as IR and Raman spectroscopy, multinuclear NMR spectroscopy, mass spectrometry, and differential scan ning calorimetry were performed when possible since some of the metal salts explode spontaneously. 2 contains the highest nitrogen content (87.48percent) of all known tetrazole salts. The impact, friction, and electrical spark sensitivity of 2, 3, 4, and 5 were measured, resulting in values which belong to primary explosives. In addition, the heats of formation of 2, 3, and 4 were calculated using the CBS-4M level of quantum mechanical theory. These, in turn, were used to estimate detonation pressure p c-jand velocity Ddet as well as the specific impulse isp..