Heterocyclic-Based Nitrodicyanomethanide and Dinitrocyanomethanide Salts: A Family of New Energetic Ionic Liquids

详细信息    查看全文

• 作者：Ruihu Wang ; Haixiang Gao ; Chengfeng Ye ; Brendan Twamley ; Jean'ne M. Shreeve
• 刊名：Inorganic Chemistry
• 出版年：2007
• 出版时间：February 5, 2007
• 年：2007
• 卷：46
• 期：3
• 页码：932 - 938
• 全文大小：235K
• 年卷期：v.46,no.3(February 5, 2007)
• ISSN：1520-510X

文摘

Twelve novel energetic salts 1a-f and 2a-f with nitrodicyanomethanide and dinitrocyanomethanide anions pairedwith 1,5-diamino-4-methyltetrazolium, 1,4-dimethyl-5-aminotetrazolium 1,4,5-trimethyltetrazolium, 1-methyl-4-amino-1,2,4-triazolium, 1,4-dimethyltriazolium, and 1,3-dimethylimidazolium have been prepared through metathesis reactionsof equivalent silver(I) salts with corresponding iodide salts in acetonitrile. Key physical properties, such as meltingpoint, thermal stability and density, were measured. The relationship between their structures and these propertieswas determined. The structures of 1,5-diamino-4-methyltetrazolium-based salts 1a and 2a were further confirmedby single-crystal X-ray analysis. The densities and standard enthalpies of formation for these energetic salts werecalculated. All of the salts possess higher enthalpies of formation than the nitrate analogues.