Polynitro‐Functionalized Dipyrazolo‐1,3,5‐triazinanes: Energetic Polycyclization toward High Density and Excellent Molecular Stability
作者:Ping Yin、Jiaheng Zhang、Gregory H. Imler、Damon A. Parrish、Jean'ne M. Shreeve
DOI:10.1002/anie.201704687
日期:2017.7.17
A new fused N-heterocyclic framework, dipyrazolo-1,3,5-triazinane, was synthesized and the physiochemical properties of its derivatives were investigated to evaluate the integrated energetic performance. In contrast to 1,3,5-trinitro-1,3,5-triazinane (RDX) featuring a distorted chair confirmation, polynitro-functionalized dipyrazolo-1,3,5-triazinanes have nearly planar backbones, thereby enhancing
合成了一个新的稠合的N-杂环骨架,双吡唑-1,3,5-三嗪烷,并对其衍生物的理化性质进行了研究,以评估其综合的能量性能。与1,3,5-trinitro-1,3,5-triazinane(RDX)具有扭曲的座椅确认特征相反,多硝基官能化的diyrazolo-1,3,5-triazinanes具有几乎平坦的骨架,从而提高了密度和散热性稳定。在这些新的高能三环化合物中,5a和12显示出1.937 g cm -3和1.990 g cm -3的有利晶体密度。在150 K下,分别在基于三嗪烷的高能化合物中排名最高。此外,进行了这种合成方法以形成七元和八元环,从而产生了四硝基双吡唑-1,3,5-三氮杂庚烷(5 b)和四硝基双吡唑-1,3,5-三唑烷(5 c), 分别。