Related Experiment Video
Updated: Sep 19, 2025
07:26
Synthesis and Microdiffraction at Extreme Pressures and Temperatures
Published on: October 7, 2013
11.3K
Structural Evolution of CL-20/HMX Cocrystals under High Pressure.
Wentao Liang1, Xiaoyu Sun2, He Wang1
1Department of Physics, School of Physics Science, University of Science and Technology of China, Hefei, Anhui 230026, China.
ACS Omega
|June 16, 2025
Summary
Energetic cocrystals, like CL-20/HMX, show phase transitions under pressure. Intermolecular hydrogen bonding influences these transitions, impacting crystal properties.
Area of Science:
- Materials Science
- Crystallography
- Chemical Engineering
Background:
- Energetic cocrystals offer enhanced properties over single-component explosives.
- Understanding CL-20/HMX cocrystal behavior under pressure is crucial for applications.
Purpose of the Study:
- To investigate the phase transition behavior of CL-20/HMX energetic cocrystals.
- To elucidate the role of intermolecular interactions in high-pressure environments.
Main Methods:
- Raman spectroscopy
- Infrared spectroscopy
- X-ray diffraction
- Hydrostatic pressure application
Main Results:
- CL-20/HMX cocrystals exhibit conformation transitions similar to single components.
- Phase transition pressures are slightly altered by intermolecular hydrogen bonding.
- Structural evolution under hydrostatic pressure was characterized.
Conclusions:
- Intermolecular hydrogen bonds play a key role in modifying phase transition pressures in CL-20/HMX cocrystals.
- This research provides fundamental insights into energetic cocrystal behavior under extreme conditions.
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