Pentazole anion cyclo-N5-: a rising star in nitrogen chemistry and energetic materials

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2018,（11）
• 页码范围: 1355-1358
• 页数: 4页
• 语种: 英文

摘要

Nitrogen and carbon are common elements in nature.The development of nitrogen chemistry,however,is obviously left behind by that of carbon chemistry.Prof.Christ [1] attributed this reason to the stability difference between nitrogen-nitrogen bond and carbon-carbon bond.From N≡N,N=N to N-N bond,the bond dissociation energy increases significantly and the stability becomes worse rapidly,which is in contrast with stable C-C bond and unstable C≡C bond in carbon chemistry.Thus,lots of stable “polycarbon”structures have been developed based on C-C bond,such as C60,graphene and diamond,while few “polynitrogen”structures based on N-N or N=N bonds can be synthesized and stably exist.For a long time,there were only two N-N or N=N bonds based polynitrogen structures isolated successfully,N3-anion and N5+ cation.From another point of view,since the polynitrogen compounds are meta-stabilized,they would store large amount of energy and serve as potential candidates for high energy density materials.