Energetic compounds featuring bi(1, 3, 4-oxadiazole): a new family of insensitive energetic materials. (9th February 2017)

• Record Type: Journal Article
• Authors: Tian, Jiawei; Xiong, Hualin; Lin, Qiuhan; Cheng, Guangbin; Yang, Hongwei
• Is Part Of: New journal of chemistry. Volume 41:Number 5(2017)
• Page Start: 1918
• Page End: 1924
• Publication Date: 2017-02-09
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c6nj03608b
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Energetic compounds featuring bi(1, 3, 4-oxadiazole) with good detonation performances and acceptable sensitivities were synthesized. Abstract : In this contribution, 5, 5′-bis(trinitromethyl)-2, 2′-bi(1, 3, 4-oxadiazole) (4 ) and 11 nitrogen-rich salts featuring bi(1, 3, 4-oxadiazole) were synthesised. Compound4 was obtained by nitration of 2, 2′-bi(1, 3, 4-oxadiazolyl)-5, 5′-diacetic acid and the salts (6, 8–17 ) were prepared by facile deprotonation and metathesis reactions. All compounds were characterized by IR, multinuclear NMR spectroscopy and elemental analysis. The structures of6, 9 and15 were further confirmed by single crystal X-ray diffraction. The physicochemical as well as energetic properties of these compounds including density, thermal stability and sensitivity were investigated. Except for12 and15, most of the salts decompose at temperatures over 180 °C. The performance data from the calculated heats of formation and experimental densities indicate that many of the salts have potential applications as energetic materials. The tested sensitivities of these compounds illustrate that they are less sensitive than RDX towards impact, friction and electrostatic discharge.