Department of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, United States.
Research Centre of Flexible Printed Electronic Technology, Harbin Institute of Technology, Shenzhen 518055, China.
ACS Appl Mater Interfaces. 2020 Sep 9;12(36):40541-40547. doi: 10.1021/acsami.0c12251. Epub 2020 Aug 27.
A significant number of challenges are encountered when developing biocidal agents with high throwing capacity for biosafety applications. Now a three-dimensional metal-organic framework (3D MOF) {, [Cu(atrz)(IO)] (atrz = 4,4'-azo-1,2,4-triazole)} was obtained using a postsynthetic method from {[Cu(atrz)(NO)]}. Benefitting from the oxygen-rich and small volume of the iodate (IO) ligands (2.73 Å) in compared to the atrz ligand (7.70 Å) in , the density of is 3.168 g cm, nearly twice that of its precursor. Its detonation velocity of 7271 ms exceeds that of TNT (trinitrotoluene) and its detonation pressure of 40.6 GPa is superior to that of HMX (cyclotetramethylenetetranitramine) (1,3,5,7-tetranitro-1,3,5,7-tetrazoctane, 39.2 Gpa), which are the highest detonation properties for a biocidal agent. Its superior detonation performance results in its main product, , being distributed over a wide area, markedly reducing the diffusion of harmful microorganisms. This study offers novel insight not only for high-energy-density materials but also for huge potential applications as biocidal agents.
在为生物安全应用开发具有高抛射能力的杀生物剂时，会遇到许多挑战。现在，通过后合成方法，从[Cu(atrz)(NO)]获得了一种三维金属有机骨架（3D MOF）{，[Cu(atrz)(IO)]（atrz = 4,4'-偶氮-1,2,4-三唑）}。得益于碘酸（IO）配体（2.73 Å）的富氧和小体积，与 atrz 配体（7.70 Å）相比，密度为 3.168 g cm，几乎是其前体的两倍。其爆速为 7271 ms，超过 TNT（三硝基甲苯），爆压为 40.6 GPa，优于 HMX（环四亚甲基四硝胺）（1,3,5,7-四硝基-1,3,5,7-四氮杂辛烷，39.2 Gpa），是杀生物剂的最高爆速性能。其优越的爆炸性能使其主要产物，分布在很广的区域，显著降低了有害微生物的扩散。这项研究不仅为高能密度材料提供了新的见解，而且为作为杀生物剂的巨大潜在应用提供了新的见解。
