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Preparation of Energetic Poly(azolyl)borates as New Environmentally Benign Green‐Light‐Emitting Species for Pyrotechnics
Author(s) -
Klapötke Thomas M.,
Rusan Magdalena,
Sproll Véronique
Publication year - 2013
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201300259
Subject(s) - boron , chemistry , pyrotechnics , thermal stability , potassium , alkali metal , chemical stability , barium , mass spectrometry , inorganic chemistry , nuclear chemistry , organic chemistry , chromatography , explosive material
Three different energetic poly(azolyl)borates, potassium dihydridobis(4‐nitroimidazolyl)borate, sodium dihydridobis(4, 5‐dinitroimidazolyl)borate, and sodium dihydridobis(3, 4,5‐trinitropyrazolyl)borate, were synthesized as starting materials for metal‐free environmentally benign green‐light‐emitting substitutes for barium salts in pyrotechnical mixtures. The compounds were analyzed by NMR and Raman spectroscopy and high mass resolution spectrometry. Moreover, the energetic properties regarding physical and thermal stability were determined. The 11 B NMR chemical shifts were calculated and compared to the experimental values and intense investigations on the formation of poly(4‐nitroimidazolyl)borates were performed. Furthermore, the solvolytic stability towards alcohol and water was tested.