Elucidating the Impact of Molecular Motors on Their Solvation Environment.

Elucidating the Impact of Molecular Motors on Their Solvation Environment.
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阐明分子马达对其溶剂环境的影响

DOI:
10.1021/acs.jpcb.0c06343
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发表时间:
2020
期刊:
The journal of physical chemistry. B
影响因子:
--
通讯作者:
S. Amirjalayer
S. Amirjalayer
中科院分区:
--
文献类型:
--
作者:
E. Kolodzeiski;S. Amirjalayer

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响应于外部刺激,分子马达能够以高精度控制分子尺度上的现象。为了利用它们的独特性质并获得指定的功能,它们的分子嵌入是重要的。尽管在相应的功能材料的开发方面取得了很大的进展,但这些响应性分子单元的结构和动力学性质如何被转移到宏观结果的详细描述迄今为止仍然缺失。在这里,我们提供了一个原子的洞察力周围的光驱动分子马达的溶剂化动力学。通过进行分子动力学模拟的基础上从头算参数化和验证力场,我们详细阐明了分子间的相互作用取决于状态的电机。溶剂化壳层的详细分析揭示了对主要相互作用位点的位置和溶剂分子相对于分子马达的取向的影响。此外,我们研究了分子马达的结构修饰对其局部环境的影响。通过研究马达-溶剂相互作用,我们的研究结果为破译分子机器特异性改变分子过程的能力提供了坚实的基础,这对于预测和定制所产生的宏观功能是至关重要的。
In response to external stimuli, molecular motors enable to control phenomena at the molecular scale with high precision. In order to utilize their unique properties and to gain designated functionalities, their molecular embedding is important. Despite the great progress in the development of corresponding functional materials, a detailed picture of how the structural and dynamic properties of these responsive molecular units are transferred to a macroscopic outcome is so-far missing. Here, we provide an atomistic insight into the solvation dynamics around a light-driven molecular motor. By performing molecular dynamic simulations based on an ab initio parametrized and validated force field, we elucidate in detail the intermolecular interactions depending on the state of the motor. Detailed analysis of the solvation shells revealed the impact on both the location of the primary interaction sites and the orientation of the solvent molecules with respect to the molecular motor. Furthermore, we studied the influence of structural modifications of the molecular motor on its local environment. By investigating the motor–solvent interaction, our results provide a strong foundation to decipher the ability of molecular machines to specifically alter molecular processes, which is fundamental to predict and tailor the resulting macroscopic functionality.
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