基于密度泛函理论(Density Function Theory,DFT),对1,3,5-三氨基-2,4,6-三硝基苯(TATB)相关产物的热力学参数及激发态进行了计算,同时利用高分辨电喷雾质谱(ESI-MS)对辐照后的TATB进行研究。结果表明:由TATB辐解生成含苯并呋咱结构的...基于密度泛函理论(Density Function Theory,DFT),对1,3,5-三氨基-2,4,6-三硝基苯(TATB)相关产物的热力学参数及激发态进行了计算,同时利用高分辨电喷雾质谱(ESI-MS)对辐照后的TATB进行研究。结果表明:由TATB辐解生成含苯并呋咱结构的产物是热力学自发过程,激发态的计算结果表明含苯并呋咱结构产物的紫外吸收峰会发生红移,高分辨电喷雾质谱(ESI-MS)的结果表明TATB在辐照过程中生成了含苯并呋咱结构的产物。结合理论计算与实验结果,确认了TATB的主要辐解产物为含亚硝基苯并呋咱结构的产物,会在600~700 nm产生新的吸收峰,导致TATB的颜色由黄色变为绿色。展开更多
The inveStigation of thermal stability of green TATB has been made by calorimetry , gasometry, explosion point and differentialthermal analysis. This means that the color change has happened on the surface of TATB. Th...The inveStigation of thermal stability of green TATB has been made by calorimetry , gasometry, explosion point and differentialthermal analysis. This means that the color change has happened on the surface of TATB. The thermal stability of the yellow TATB andgreen TAN are good, but the yellow TATB is better than the green.展开更多
文摘基于密度泛函理论(Density Function Theory,DFT),对1,3,5-三氨基-2,4,6-三硝基苯(TATB)相关产物的热力学参数及激发态进行了计算,同时利用高分辨电喷雾质谱(ESI-MS)对辐照后的TATB进行研究。结果表明:由TATB辐解生成含苯并呋咱结构的产物是热力学自发过程,激发态的计算结果表明含苯并呋咱结构产物的紫外吸收峰会发生红移,高分辨电喷雾质谱(ESI-MS)的结果表明TATB在辐照过程中生成了含苯并呋咱结构的产物。结合理论计算与实验结果,确认了TATB的主要辐解产物为含亚硝基苯并呋咱结构的产物,会在600~700 nm产生新的吸收峰,导致TATB的颜色由黄色变为绿色。
文摘The inveStigation of thermal stability of green TATB has been made by calorimetry , gasometry, explosion point and differentialthermal analysis. This means that the color change has happened on the surface of TATB. The thermal stability of the yellow TATB andgreen TAN are good, but the yellow TATB is better than the green.
