{"title":"单晶-单晶 MOF 封装叠氮化铜以制备激光敏感型初级炸药","authors":"Ruibing Lv, Pengyang Pan, Zhenghang Luo, Ying Wang, Quancheng Liu, Hu Deng, Qi Zhang","doi":"10.1039/d4qi02170c","DOIUrl":null,"url":null,"abstract":"Laser-sensitive primary explosives (LSPEs) are crucial material bases of advanced laser initiation technology. Copper azide (CA), a primary explosive with excellent detonation properties, is limited in preparation and application owing to its extremely high sensitivity. Thus, incorporating CA into LSPEs relies on precise desensitisation strategies. This study successfully implemented a strategy involving sensitive-unit molecular-scale encapsulation. A 2D energetic metal–organic framework (EMOF) [Cu(<strong>ATRZ</strong>)(N<small><sub>3</sub></small>)<small><sub>2</sub></small>]<small><sub><em>n</em></sub></small> (<strong>CA-ATRZ</strong>) (<strong>ATRZ</strong> = 4,4′-azo-1,2,4-triazole) was designed and synthesized <em>via</em> a safe and facile single-crystal-to-single-crystal (SCSC) transformation from a 3D EMOF [Cu(<strong>ATRZ</strong>)<small><sub>3</sub></small>(NO<small><sub>3</sub></small>)<small><sub>2</sub></small>]<small><sub><em>n</em></sub></small>. Leveraging its distinctive structural attributes of encapsulated confinement, <strong>CA-ATRZ</strong> is substantially improved in terms of safety compared to CA, while maintaining its superior detonation performance. Furthermore, <strong>CA-ATRZ</strong> obtained by combining MOFs with CA has outstanding ultrafast direct laser initiation characteristics, is free of toxic metals and perchlorate, has high initiating ability, and has decent thermal stability. This strategy could pave the way for developing advanced high-energy LSPEs.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":6.1000,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Single-crystal-to-single-crystal MOF encapsulation of copper azide to prepare laser-sensitive primary explosives\",\"authors\":\"Ruibing Lv, Pengyang Pan, Zhenghang Luo, Ying Wang, Quancheng Liu, Hu Deng, Qi Zhang\",\"doi\":\"10.1039/d4qi02170c\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Laser-sensitive primary explosives (LSPEs) are crucial material bases of advanced laser initiation technology. Copper azide (CA), a primary explosive with excellent detonation properties, is limited in preparation and application owing to its extremely high sensitivity. Thus, incorporating CA into LSPEs relies on precise desensitisation strategies. This study successfully implemented a strategy involving sensitive-unit molecular-scale encapsulation. A 2D energetic metal–organic framework (EMOF) [Cu(<strong>ATRZ</strong>)(N<small><sub>3</sub></small>)<small><sub>2</sub></small>]<small><sub><em>n</em></sub></small> (<strong>CA-ATRZ</strong>) (<strong>ATRZ</strong> = 4,4′-azo-1,2,4-triazole) was designed and synthesized <em>via</em> a safe and facile single-crystal-to-single-crystal (SCSC) transformation from a 3D EMOF [Cu(<strong>ATRZ</strong>)<small><sub>3</sub></small>(NO<small><sub>3</sub></small>)<small><sub>2</sub></small>]<small><sub><em>n</em></sub></small>. Leveraging its distinctive structural attributes of encapsulated confinement, <strong>CA-ATRZ</strong> is substantially improved in terms of safety compared to CA, while maintaining its superior detonation performance. Furthermore, <strong>CA-ATRZ</strong> obtained by combining MOFs with CA has outstanding ultrafast direct laser initiation characteristics, is free of toxic metals and perchlorate, has high initiating ability, and has decent thermal stability. This strategy could pave the way for developing advanced high-energy LSPEs.\",\"PeriodicalId\":79,\"journal\":{\"name\":\"Inorganic Chemistry Frontiers\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.1000,\"publicationDate\":\"2024-10-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Inorganic Chemistry Frontiers\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1039/d4qi02170c\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Chemistry Frontiers","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4qi02170c","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
摘要
激光敏感原爆物(LSPE)是先进激光起爆技术的重要材料基础。叠氮化铜(CA)是一种具有优异起爆特性的初级炸药,但由于其灵敏度极高,在制备和应用方面受到限制。因此,将 CA 纳入 LSPE 有赖于精确的脱敏策略。本研究成功实施了一种涉及敏感单元分子尺度封装的策略。研究人员设计了一种二维高能金属有机框架(EMOF)[Cu(ATRZ)(N3)2]n (CA-ATRZ)(ATRZ = 4,4′-偶氮-1,2,4-三唑),并通过从三维 EMOF [Cu(ATRZ)3(NO3)2]n(CA-ATRZ)到单晶(SCSC)的安全而简便的转化合成了该框架。与 CA 相比,CA-ATRZ 利用其独特的封装约束结构属性,在保持其优异引爆性能的同时,在安全性方面有了大幅提高。此外,将 MOFs 与 CA 结合得到的 CA-ATRZ 具有出色的超快激光直接起爆特性,不含有毒金属和高氯酸盐,起爆能力强,热稳定性好。这种策略可为开发先进的高能 LSPE 铺平道路。
Single-crystal-to-single-crystal MOF encapsulation of copper azide to prepare laser-sensitive primary explosives
Laser-sensitive primary explosives (LSPEs) are crucial material bases of advanced laser initiation technology. Copper azide (CA), a primary explosive with excellent detonation properties, is limited in preparation and application owing to its extremely high sensitivity. Thus, incorporating CA into LSPEs relies on precise desensitisation strategies. This study successfully implemented a strategy involving sensitive-unit molecular-scale encapsulation. A 2D energetic metal–organic framework (EMOF) [Cu(ATRZ)(N3)2]n (CA-ATRZ) (ATRZ = 4,4′-azo-1,2,4-triazole) was designed and synthesized via a safe and facile single-crystal-to-single-crystal (SCSC) transformation from a 3D EMOF [Cu(ATRZ)3(NO3)2]n. Leveraging its distinctive structural attributes of encapsulated confinement, CA-ATRZ is substantially improved in terms of safety compared to CA, while maintaining its superior detonation performance. Furthermore, CA-ATRZ obtained by combining MOFs with CA has outstanding ultrafast direct laser initiation characteristics, is free of toxic metals and perchlorate, has high initiating ability, and has decent thermal stability. This strategy could pave the way for developing advanced high-energy LSPEs.