A new 1-D energetic complex [Cu(2,3 '-bpt)(2)center dot H2O](n): synthesis, structure, and catalytic thermal decomposition for ammonium perchlorate

作者：Li, Bing^*; Shen, Dan; Chen, Xiaoyan; Li, Ting; Ren, Jianlin; Hu, Qilin; Liu, Wanyi

来源：Journal of Coordination Chemistry, 2014, 67(11): 2028-2038.

DOI：10.1080/00958972.2014.934230

• Energetic
• 2,3 '-Hbpt
• Crystal structure
• Catalytic thermal decomposition

A new energetic complex, [Cu(2,3'-bpt)(2)center dot H2O](n), displays a 1-D channel in the ac plane and further links into 2-D planes by the hydrogen-bond interactions. AP is completely decomposed in a shorter time and releases more heat in the presence of complex 1. By Kissinger's method, the ratio of E-a/ln (A) is 12.23 for the mixture, which indicates that complex 1 shows good catalytic activity toward AP decomposition.
A new energetic complex, [Cu(2,3'-bpt)(2)center dot H2O]n (1) (2,3'-Hbpt = 3-(2-pyridyl)-5-(3'-pyridyl) 1H-1,2,4-triazole), was synthesized and characterized by single-crystal X-ray diffraction, thermogravimetric analyses, elemental analysis, X-ray powder diffraction, and IR spectroscopy. The title complex belongs to the monoclinic system, space group P2(1)/c. In the complex, one 2,3'-bpt(-) is a chelate binding to Cu(II) centers forming a Cu(2,3'-bpt)(+) unit. Then the other 2,3'-bpt(-) adopts chelate/bridging tridentate mode linking adjacent Cu(2,3'-bpt)(+) units to a zigzag chain along the (110) direction and a 1-D channel in the ac plane. Hydrogen-bond interactions link the channels into 2-D planes. The thermal decomposition of ammonium perchlorate (AP) with 1 was explored by differential scanning calorimetry from 323 to 773 K. AP is completely decomposed in a shorter time in the presence of 1, and the decomposition heat of the mixture is 1946 J g(-1), significantly higher than pure AP. By Kissinger's method, the ratio of E-a/ln (A) is 12.23 for the mixture, which indicates that 1 shows good catalytic activity toward AP decomposition.

• 出版日期2014
• 单位宁夏大学