Details

Autor(en) / Beteiligte

• Li, Chuping
• Feng, Zhicun
• Wang, Hao
• Zhou, Tianhong
• Li, Yanan
• Xu, Kangzhen

Titel

Aromatic Nucleophilic Substitution of FOX‐7: Synthesis and Properties of 1‐Amino‐1‐Picrylamino‐2,2‐Dinitroethylene (APDE) and Its Potassium Salt [K(APDE)]

Ist Teil von

• ChemPlusChem (Weinheim, Germany), 2019-07, Vol.84 (7), p.794-801

Ort / Verlag

Germany

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Wiley Online Library

Beschreibungen/Notizen

• Two energetic compounds, 1‐amino‐1‐picrylamino‐2,2‐dinitroethylene (APDE) and its potassium salt [K(APDE)] were synthesized through an aromatic nucleophilic substitution reaction between FOX‐7 and picryl chloride. APDE and K(APDE) were characterized by elemental analysis, IR, NMR spectroscopy, and X‐ray diffraction. APDE has a 3D wavy layered stacking structure similar to FOX‐7. K(APDE) (peak temperature (Tip)=185.6 °C and impact sensitivity (IS)=19.6 J) presents better stability than APDE (tap=133.3 °C and IS=15.7 J). The reasons why the stability of APDE is lower than that of FOX‐7 and picryl chloride are analyzed. The detonation velocity (D) and detonation pressure (P) of APDE (8.36 km s−1 and 31.3 Gpa) are close to those of FOX‐7 and RDX. The thermal decomposition of K(APDE) is very violent, and its detonation performance (D=9.14 km s−1 and P=38.6 Gpa) is comparable to that of HMX, indicating that K(APDE) has good potential to be a high explosive. A cunning FOX: The explosive FOX‐7 reacts with picryl chloride to undergo an aromatic nucleophilic substitution reaction, resulting in the formation of APDE and its energetic potassium salt K(APDE). This salt (Tp=185.6 °C and IS=19.6 J) shows better stability than APDE (Tp=133.3 °C and IS=15.7 J). The detonation performance of APDE (8.36 km s−1 and 31.3 GPa) and K(APDE) (9.14 km s−1 and 38.6 GPa) are close to that of RDX and HMX respectively.