1, 3-Bis(3, 4, 5-trifluoro-2, 6-dinitrophenyl)urea (ZXC-19): a multifluorine substituted propellant with superior detonation performance. (3rd June 2019)

• Record Type: Journal Article
• Authors: Zhang, Xingcheng; Fu, Menglei; Zou, Fangfang; Hao, Jingyuan; Qu, Youle; Hu, Wenxiang; Zhou, Qiuju
• Is Part Of: New journal of chemistry. Volume 43:Number 24(2019)
• Page Start: 9623
• Page End: 9627
• Publication Date: 2019-06-03
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c9nj01885a
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Fluorine-containing explosives have potential applications in rocket propellant and explosive formulations because they produce a large number of products with a smaller molecular weight and high detonation performance when they are detonated. Abstract : Fluorine-containing explosives have potential applications in rocket propellant and explosive formulations because they produce a large number of products with a smaller molecular weight and high detonation performance when they are detonated. Here we synthesize a multifluorine substituted energetic compound: 1, 3-bis(3, 4, 5-trifluoro-2, 6-dinitrophenyl)urea (ZXC-19). ZXC-19 was synthesized by a simple, efficient and two-step reaction method with commercial reagents for the first time. ZXC-19 was characterized by means of mass spectrometry, multinuclear ( 1 H, 13 C, 19 F) NMR spectroscopy, single-crystal X-ray diffraction, elemental analysis and DSC. The sensitivities were determined by BAM methods (a drop hammer and a friction tester). The heats of formation were calculated by using CBS-4M electronic enthalpies and an atomization method. Various detonation parameters such as detonation velocity and pressure were computed by using the Kamlet procedure. And the results showed that ZXC-19 has a poor solubility in water, a good solubility in most organic solvents, a surprisingly high density (1.899 g cm −3 at 298 K), a decent thermal stability, a positive and high heat of formation, and good detonation properties.