Ammonia (NH₃) and hydrazine (N₂H₄) are both utilized within a wide range of chemical industry, agriculture and pharmaceuticals. A detection strategy is realized for the identification of gaseous NH₃ and N₂H₄, adopting the host-guest complexation between AIE-active molecule TPM and cucurbit[8]uril (CB[8]). The TPM@CB[8] complex exhibits a deep red emission, which is immediately turned into light yellow and sky-blue as meeting with gaseous NH₃ and N₂H₄, respectively. This newly reported TPM@CB[8] complex is capable of sensitively and selectively detecting gaseous NH₃ and N₂H₄ with a low detection limit (0.80 ppm and 0.41 ppm). The sensing mechanism is studied with ¹H NMR, HRMS, SEM and DFT calculations. Finally, TPM@CB[8] complex could detect N₂H₄ vapor from real water samples, and act as a food spoilage sensor for monitoring gaseous NH₃ generated in food spoilage.

氨 (NH ₃ ) 和肼 (N ₂ H ₄ ) 都广泛用于化学工业、农业和制药领域。采用AIE活性分子TPM和葫芦[8]脲(CB[8])之间的主客体络合，实现了一种用于识别气态NH ₃和N ₂ H ₄的检测策略。所述TPM @ CB [8]络合物表现出深红色发射，其立即转变为浅黄色和天蓝色与气态NH会议₃和N ₂ ħ ₄，分别。这个新报告的TPM@CB[8]复合物能够灵敏和选择性地检测气态 NH ₃和 N ₂ H ₄，检测限低（0.80 ppm 和 0.41 ppm）。传感机制通过¹ H NMR、HRMS、SEM 和 DFT 计算进行研究。最后，TPM@CB[8]复合物可以检测真实水样中的N ₂ H ₄蒸气，并作为食品腐败传感器监测食品腐败过程中产生的气态 NH ₃。