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Inside Cover: Energetic Compounds Based on 3,4‐Bis(4‐nitramino‐ 1,2,5‐oxadiazol‐3‐yl)‐1,2,5‐furoxan (BNAFF) (Prop., Explos., Pyrotech. 4/2018)
Author(s) -
Gospodinov Ivan,
Hermann Tobias,
Klapötke Thomas M.,
Stierstorfer Jörg
Publication year - 2018
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201880402
Subject(s) - furoxan , hydroxylamine , chemistry , hydrazine (antidepressant) , thermal stability , salt (chemistry) , potassium nitrate , potassium , potassium hydroxide , medicinal chemistry , organic chemistry , chromatography , nitric oxide
The inside cover picture shows the molecular structure of 3,4‐bis(4‐nitramino‐1,2,5‐oxadiazol‐3‐yl)‐1,2,5‐furoxan (H 2 BNAFF, Bottom). H 2 BNAFF is unstable as the free acid and decomposes abruptly. Both arrows in the middle of the cover picture represent the reaction of H 2 BNAFF with different inorganic (potassium hydroxide, centre middle) and organic bases ( e.g . hydrazine, hydroxylamine, centre left), which leads to the stabilization of the BNAFF structure. The crystal structures of three of the obtained energetic salts with the free acid are shown on the top of the picture. The potassium salt (K 2 BNAFF, top middle) exhibits the highest thermal stability (245 °C) of all synthesized derivatives. Taming the unstable nature of H 2 BNAFF (bottom) is also represented through the change of color in the background of the picture from red (unstable starting material, bottom) to blue (stable energetic salts, top). More details can be found in the Full Paper by T. M. Klapötke et al. on page 355 ff.