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Front Cover: Stabilization of the Pentazolate Anion in Three Anhydrous and Metal‐Free Energetic Salts (Chem. Asian J. 8/2018)
Author(s) -
Xu Yuangang,
Lin Qiuhan,
Wang Pengcheng,
Lu Ming
Publication year - 2018
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201800363
Subject(s) - anhydrous , thermal stability , metal , front cover , detonation , chemistry , ion , cover (algebra) , crystal structure , metal ions in aqueous solution , crystallography , materials science , organic chemistry , explosive material , engineering , mechanical engineering
The front cover indicates that three anhydrous, metal‐free energetic salts based on cyclo ‐N 5 − 3,9‐diamino‐6,7‐dihydro‐5 H‐bis([1,2,4]triazolo)[4,3‐e:3′,4′‐g][1,2,4,5] tetrazepine‐2,10‐diium, N ‐carbamoylguanidinium, and oxalohydrazinium (oxahy + ) pentazolate were synthesized and fully characterized. Single‐crystal X‐ray structure analyses revealed the distinctive stabilization mechanism of the cyclo ‐N 5 − in anhydrous, metal‐free solid phase. These salts had acceptable thermal stability, positive heats of formation and good detonation performance. This work highlights cyclo ‐N 5 − as a next‐generation energetic building block. More information can be found in the Communication by Pengcheng Wang, Ming Lu et al. on page 924 in Issue 8, 2018 (DOI: 10.1002/asia.201800187).