外部电场对Cryptand[2.2.2] (C222) 基性土化物的非线性光学响应增加了三级
Annum Ahsan1, Faiza Fayyaz1, Sehrish Sarfaraz1
1Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, KPK, 22060, Pakistan.
Heliyon
|July 17, 2023
概括
由于小的HOMO-LUMO间隙,新的性土化物M1(C222) M2具有很高的超极化性. 外部电场显著增强了这种特性,显示了先进材料的潜力.
科学领域:
- 计算化学是一种计算化学.
- 材料科学是一种材料科学.
- 无机化学 无机化学 无机化学
背景情况:
- 密[2.2.2] (C222) 作为一种多功能联体,用于创建新的无机复合体.
- 性土是具有在非线性光学和材料科学中潜在应用的化合物.
研究的目的:
- 设计和研究一系列使用C222连接体的性土化物复合物的新系列.
- 评估这些新型复合物的电子,热力学和超极化性质.
主要方法:
- 九个M1(C222) M2复合物的计算设计 (M1 = Li,Na,K;M2 = Be,Mg,Ca).
- 对垂直电离潜力 (VIP),相互作用能量,自然键轨道 (NBO) 和边界分子轨道 (FMO) 理论的分析.
- 计算HOMO-LUMO间隙,部分密度状态 (PDOS) 和超极化,包括外部电场 (EEF) 的影响.
主要成果:
- 设计的复合体表现出良好的电子和热力学稳定性.
- NBO,FMO和PDOS分析证实了性土质的特性.
- 小的HOMO-LUMO间隙 (2.232.83 eV) 和过渡能量 (0.682.06 eV) 会导致高超极化 (高达2.7 × 10^5 au).
- 应用EEF大大提高了超极化性,其中一个复合体显示了1000倍的增加.
结论:
- 新的M1(C222) M2复合体是稳定的,并表现出真正的性土壤特征.
- 这些复合体具有非线性光学应用的巨大潜力,因为它们具有可调和高超极化性.
- 外部电场提供了一个有前途的途径,以进一步提高这些材料的性能.
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