结构对苯并吲哚类新型七甲基青碱激发态寿命的影响

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Theoretical and Experimental Chemistry Pub Date : 2023-05-19 DOI:10.1007/s11237-023-09760-x

A. A. Ishchenko, I. V. Kurdyukova, Yu. L. Slominskii, I. P. Sharanov

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引用次数: 0

摘要

研究表明，新型苯并[cd]吲哚基七甲基青碱(hmc)具有超短的光激发态寿命τ和高的光吸收强度，在实际重要的钕激光器的产生范围内。采用DFT和TD-DFT方法分析了hmc的电子结构和电子跃迁类型。考虑了振动和分子间相互作用对τ的影响。与已知的具有超短τ的染料相比，hmc用于激光被动模式锁定的优势得到了证明。证明了hmc在超短τ已知染料上实现激光器被动模式锁定的优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Influence of Structure on Lifetime of the Excited State of New Heptamethinecyanines Based on Benzo[cd]Indole

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Influence of Structure on Lifetime of the Excited State of New Heptamethinecyanines Based on Benzo[cd]Indole

It is shown that new benzo[cd]indole-based heptamethinecyanines (HMCs) have an ultrashort lifetime τ of the photoexcited state and a high intensity of light absorption in the generation range of practically important neodymium lasers. The electronic structure and types of electronic transitions in HMCs are analyzed by the DFT and TD-DFT methods. The influence of vibronic and intermolecular interactions on τ is considered. The advantages of HMCs for passive mode locking of lasers over known dyes with ultrashort τ are demonstrated. The advantages of HMCs to implement passive mode locking of lasers over known dyes with ultrashort τ are demonstrated.

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来源期刊

Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.