Synthesis, Thermal Behaviours and Crystal Structure of 1,1'-Dioxide-7,7'-bis(terfurazan[3,4-b:3,4'-d:3'',4''-f]azepine)
作者:Huan Huo、Jun Dong、Bo-Zhou Wang、Yan-Shui Zhou、Zhong-Xue Ge、Peng Lian
DOI:10.14233/ajchem.2014.16526
日期:——
1,1-Dioxide-7,7-bis(terfurazan[3,4-b:3,4-d:3,4-f]azepine) was synthesized from 3,4-bis(4-nitrofurazan-3-yl)furoxan by cyclization and nitration with a yield of 25.7 % and its structure and intermediate were characterized by 1H NMR, 13C NMR, FT-IR and elementary analysis. Its single crystal was obtained and its crystal structure was studied by X-ray single-crystal diffraction analysis. The title compound (C18H12N14O10, Mr = 584.42) crystallizes in trigonal system, P3(2) space group and constituted one 1,1-dioxide-7,7-bis(terfurazan[3,4-b:3,4-d:3,4-f]azepine) and two acetone molecules, with a =15.460 (18), b = 15.460 (18), c = 9.603 (11) Å, V = 1988 (4) Å3, Z = 3, Dc = 1.465 g/cm3, l = 0.071073 Å, μ(MoKa) = 0.123 mm-1, F(000) = 894, S = 1.022, R = 0.0720 and wR = 0.1838. In DSC and TG-DTG techniques suggest that there are two main decomposition peaks at 288.7 and 338.7 °C. The results show that the title compound had favorable thermal stability.
1,1-Dioxide-7,7-bis(terfurazan[3,4-b:3,4-d:3,4-f]azepine) 由 3,4-bis(4-nitrofurazan-3-yl)furoxan 通过环化和硝化合成,产率为 25.7%,其结构和中间体通过 1H NMR、13C NMR、FT-IR 和元素分析进行了表征。通过 X 射线单晶衍射分析对其晶体结构进行了研究。标题化合物(C18H12N14O10,Mr = 584.42)结晶为三方晶系,P3(2) 空间群,由一个 1,1-dioxide-7,7-bis(terfurazan[3,4-b:3,4-d:3,4-f]azepine) 分子和两个
丙酮分子组成,a =15.460 (18),b = 15.460 (18),c = 9.603 (11) Å,V = 1988 (4) Å3,Z = 3,Dc = 1.465 g/cm3,l = 0.071073 Å,μ(MoKa) = 0.123 mm-1,F(000) = 894,S = 1.022,R = 0.0720 和 wR = 0.1838。
DSC 和 TG-DTG 技术表明,在 288.7 和 338.7 °C 有两个主要的分解峰。结果表明,标题化合物具有良好的热稳定性。