Boosting the performance of energetic materials through thermally-induced conformational transition. Issue 5 (15th January 2019)

• Record Type: Journal Article
• Authors: Liu, Yang; Shen, Cheng; Lu, Ming
• Is Part Of: CrystEngComm. Volume 21:Issue 5(2019)
• Page Start: 796
• Page End: 799
• Publication Date: 2019-01-15
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c8ce01825a
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : We presented an effective strategy to improve the performance of energetic materials through thermally-induced conformational transition. Abstract : In this study, the desirable U-conformations of 3, 3′-bis(1 H -tetrazol-5-yl)-4, 4′-azofurazan (DTAZF) were prepared through thermally-induced conformational transition from S-DTAZF crystals, as confirmed by single crystal X-ray diffraction. U-DTAZF exhibited increases of 0.05 g cm −3 (2.9%), 106 kJ mol −1 (9.4%), 275 m s −1 (3.7%) and 2.2 GPa (8.9%) in density, heat of formation, detonation velocity and detonation pressure, respectively, compared to those of S-DTAZF; meanwhile, it showed comparable sensitivities toward impact and friction and an acceptable decrease in thermal stability. The results of this study provide a new path for improving the performance of energetic materials.