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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Configurational Sampling of Noncovalent (Atmospheric) Molecular Clusters: Sulfuric Acid and Guanidine
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Configurational Sampling of Noncovalent (Atmospheric) Molecular Clusters: Sulfuric Acid and Guanidine

机译:非共价(大气)分子簇的配置抽样:硫酸和胍

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摘要

We studied the configurational sampling of noncovalently bonded molecular clusters relevant to the atmosphere. In this article, we discuss possible approaches to searching for optimal configurations and present one alternative based on systematic configurational sampling, which seems able to overcome the typical problems associated with searching for global minima on multidimensional potential energy surfaces. Since atmospheric molecular clusters are usually held together by intermolecular bonds, we also present a cost-effective strategy for treating hydrogen bonding and proton transferring by using rigid molecules and ions in different protonation states and illustrate its performance on clusters containing guanidine and sulfuric acid.
机译:我们研究了与大气相关的非共价键合的分子集群的配置采样。 在本文中,我们讨论了寻找最佳配置的可能方法,并基于系统配置采样的一种替代方案,该方法似乎能够克服与在多维势能表面上寻找全局最小值相关的典型问题。 由于大气分子簇通常通过分子结合保持在一起,我们还提出了一种经济有效的策略,用于通过使用不同质子化状态的刚性分子和离子处理氢键和质子转移,并说明其在含有胍和硫酸的簇上的性能。

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