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Synthesis and characterization of energetic salts based on the new propan-2-ylidene methanetriamium cations
Alternative TitleJ. Mol. Struct.
Zhang, Tao1,2; Liu, Long2; Li, Chunshan2; Zhang, Yanqiang2; Li, Zengxi1; Zhang, Suojiang2
2014-06-05
Source PublicationJOURNAL OF MOLECULAR STRUCTURE
ISSN0022-2860
Volume1067Issue:1Pages:195-204
AbstractDevelopment of new hypergolic ionic liquids is the key in replacing toxic N,N-dimethylhydrazine as green liquids propellants. Three salts based on the new propan-2-ylidene methanetriamium cations and dicyanamide anion were synthesized and characterized by H-1 and C-13 NMR, IR and Raman spectroscopy, elemental analysis, and TG/DTA. In addition, their crystal structures were determined by X-ray single crystal diffraction. N-(propan-2-ylidene) methanetriamium dicyanamide (1) crystallizes in the monoclinic space group P2(1)/n, N,N'-bi(propan-2-ylidene) methanetriamium dicyanamide (2) in triclinic P - 1, and N,N',N"-tri(propan-2-ylidene) methanetriamium dicyanamide (3) in monoclinic C2/c. With heats of formation (from 1.56 to 1.80 kJ g(-1)) and densities (from 1.19 to 1.31 gcm(-3)) in hand, the detonation pressure (P) and velocity (D), and specific impulse (hp) values of salts were calculated as 8.94 GPa, 4989 m s(-1) and 174.3 s (1), 7.91 GPa, 4815 m s(-1) and 179.0 s (2), and 7.33 GPa, 4693 m s(-1) and 180.6 s (3), respectively. Impact sensitivities of 1, 2 and 3 were measured to be no less than 40 J by hammer tests, which places these salts in the insensitive class. Moreover, the resulting salts are hypergolic with white fuming nitric acid and exhibit potential as bipropellants. (C) 2014 Elsevier B.V. All rights reserved.; Development of new hypergolic ionic liquids is the key in replacing toxic N,N-dimethylhydrazine as green liquids propellants. Three salts based on the new propan-2-ylidene methanetriamium cations and dicyanamide anion were synthesized and characterized by H-1 and C-13 NMR, IR and Raman spectroscopy, elemental analysis, and TG/DTA. In addition, their crystal structures were determined by X-ray single crystal diffraction. N-(propan-2-ylidene) methanetriamium dicyanamide (1) crystallizes in the monoclinic space group P2(1)/n, N,N'-bi(propan-2-ylidene) methanetriamium dicyanamide (2) in triclinic P - 1, and N,N',N"-tri(propan-2-ylidene) methanetriamium dicyanamide (3) in monoclinic C2/c. With heats of formation (from 1.56 to 1.80 kJ g(-1)) and densities (from 1.19 to 1.31 gcm(-3)) in hand, the detonation pressure (P) and velocity (D), and specific impulse (hp) values of salts were calculated as 8.94 GPa, 4989 m s(-1) and 174.3 s (1), 7.91 GPa, 4815 m s(-1) and 179.0 s (2), and 7.33 GPa, 4693 m s(-1) and 180.6 s (3), respectively. Impact sensitivities of 1, 2 and 3 were measured to be no less than 40 J by hammer tests, which places these salts in the insensitive class. Moreover, the resulting salts are hypergolic with white fuming nitric acid and exhibit potential as bipropellants. (C) 2014 Elsevier B.V. All rights reserved.
KeywordPropan-2-ylidene Methanetriamium Spectroscopy Crystal Structure Dft Hypergolic
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.molstruc.2014.03.029
URL查看原文
Indexed BySCI
Language英语
WOS KeywordHYPERGOLIC IONIC LIQUIDS ; NITROGEN-RICH SALTS ; DETONATIONS ; CHEMISTRY ; FUELS
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000336342100024
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11035
Collection研究所(批量导入)
Affiliation1.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Tao,Liu, Long,Li, Chunshan,et al. Synthesis and characterization of energetic salts based on the new propan-2-ylidene methanetriamium cations[J]. JOURNAL OF MOLECULAR STRUCTURE,2014,1067(1):195-204.
APA Zhang, Tao,Liu, Long,Li, Chunshan,Zhang, Yanqiang,Li, Zengxi,&Zhang, Suojiang.(2014).Synthesis and characterization of energetic salts based on the new propan-2-ylidene methanetriamium cations.JOURNAL OF MOLECULAR STRUCTURE,1067(1),195-204.
MLA Zhang, Tao,et al."Synthesis and characterization of energetic salts based on the new propan-2-ylidene methanetriamium cations".JOURNAL OF MOLECULAR STRUCTURE 1067.1(2014):195-204.
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