Pressure-induced structural phase transition of energetic material 4-aminobenzamide

被引：0
|
作者：
Yan, Tingting [1 ]
Li, Han [1 ]
Xi, Dongyang [1 ]
Sun, Lei [1 ]
Liu, Linan [1 ]
Jin, Dinghan [1 ]
机构：
[1] School of Materials Science and Engineering, Shenyang Jianzhu University, Shenyang,110168, China
来源：
Chemical Physics Letters | 2025年 / 869卷
基金：
中国国家自然科学基金;
关键词：
Hydrogen bonds;
D O I：
10.1016/j.cplett.2025.142072
中图分类号：
学科分类号：
摘要：
This study investigated the behavior of energetic material 4-aminobenzamide (4-AMBZA; C7H8N2O) under high pressure utilizing Raman spectroscopy. Notable alterations were detected in the Raman spectra within 2.6–7.8 GPa, suggesting 4-AMBZA experiences a phase transition. Continued pressure caused the crystal to show a tendency towards amorphization. When the pressure is released, the amorphization phenomenon persists. Variations of N[sbnd]H bending vibration (amide II), C[sbnd]N stretching vibration (amide III), and C[dbnd]O stretching vibration (amide I) indicate that phase transition arises from the twisting and rearrangement of hydrogen-bonded networks. Hirshfeld surface energy were conducted to analyze intermolecular interactions within 4-AMBZA. © 2025 Elsevier B.V.
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