基于三环的高能性能能量材料的理论研究
Shaoqing Wang1, Yan Huang2, Qing Ma3
1School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing, 102488, China.
Journal of molecular modeling
|June 4, 2025
概括
使用密度功能理论 (DFT) 设计了具有优越密度和爆炸性能的新型高能量密度材料 (HEDM). 的替代增强了这些新能源材料的稳定性和灵敏性.
科学领域:
- 材料科学 材料科学 材料科学
- 计算化学的计算化学
- 能量材料 能量材料
背景情况:
- 对三环高能量密度材料 (HEDM) 进行系统的研究,其中包括醇,三醇和四醇框架.
- 探索以酸盐为基础的化合物和酸甲基替代衍生物的增强性质.
研究的目的:
- 与HMX等现有材料相比,设计具有高密度和引爆性能的新型HEDM.
- 调查结构性质关系以及替代对稳定性和灵敏性的影响.
主要方法:
- 使用B3LYP/6-31G(d,p) 和M06-2X/def2-SVP等级进行密度函数理论 (DFT) 的计算.
- 使用高斯09的分子优化和性能指标分析.
- 使用Multiwfn和VMD软件进行静电电位能量计算和二次元相互作用可视化.
主要成果:
- 化合物II-7呈现出最高预测密度 (2.04 g cm−3) 和最佳爆炸性能 (D=9451 m s−1,P=42.57 GPa).
- 基于醇的III-1化合物表现出最高的形成热量 (844.42kJ mol-1),表明能量含量高.
- 形式组增强性能,而替代改善稳定性并降低灵敏度.
结论:
- 确定了具有显著改善密度和性能特征的新型HEDM.
- 替代是一种优化能量材料的有效策略.
- 建立了清晰的结构-属性关系,突出了-氧键对业绩的影响.
相关概念视频
01:16Potential-Energy Criterion for Equilibrium
640
Potential energy or potential function plays an essential role in determining the stability of a mechanical system. If a system is subjected to both gravitational and elastic forces, the potential function of the system can be expressed as the algebraic sum of gravitational and elastic potential energy. If the system is in equilibrium and is displaced by a small amount, then the work done on the system equals the negative of the change in the system's potential energy from the initial to...
640
01:28Antidepressant Drugs: Tricyclics, SSRIs, and SNRIs
626
Tricyclic Antidepressants (TCAs), including Desipramine (Norpramin), Imipramine (Tofranil), Clomipramine (Anafranil), and Amitriptyline (Elavil), inhibit serotonin and norepinephrine reuptake and also block other receptors. They are used for depression, pain conditions, and insomnia. Common adverse effects include anticholinergic effects, sedation, orthostatic hypotension, and weight gain. They have a narrow therapeutic window and so require plasma-level monitoring. Abrupt discontinuation can...
626