respectively) and were found to be insensitive in small-scale impact drop tests, possessing sensitivity between that of TNB and TXTNB (X = I or Br). The halogen content of the two cocrystals suggests application as insensitive biocidal energetics. Halogen bonding, facilitated by the strong polarization induced by aromatic ring nitration, plays a critical role in the formation of these cocrystals and offers
获得了两个含
1,3,5-三硝基苯(TNB)的同构高能共晶体,以及高能材料1,3,5-三
碘代-2,4,6-三
硝基苯(TITNB)和1,3,5-三
溴-2。比例为2:1 TNB / TITNB(1)和2:1 TNB / TBTNB(2)的4,6-三
硝基苯(TBTNB )。这些材料包含在有机卤化物的剑桥结构数据库中看到的最短的硝基-
碘相互作用和次短的硝基-
溴相互作用。计算研究表明,共结晶比它们各自的组分晶体更稳定的11.5千焦/摩尔为1和8.2千焦/摩尔2。虽然计算出与1,3,5-三
氯-2,4,6-三
硝基苯(TCTNB)形成的同构2:1共晶体有利于8.5 kJ / mol,但仅获得了两种共形成剂的物理混合物实验上。既1和2具有较高的结晶密度(2.203和1.980克/厘米3,并在小规模的跌落试验中被发现不敏感,其灵敏度在TNB和TXTNB之间(X = I或Br)。这两种共晶体的卤素含量表明其可作为