首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Enhanced Stability of Non-Proton-Transferred Clusters of Hydrated Hydrogen Fluoride HF(H_2O)_n (n = 1-7): A Molecular Orbital Study
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Enhanced Stability of Non-Proton-Transferred Clusters of Hydrated Hydrogen Fluoride HF(H_2O)_n (n = 1-7): A Molecular Orbital Study

机译:水化氟化氢HF(H_2O)_n(n = 1-7)的非质子转移簇的增强的稳定性:分子轨道研究。

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摘要

The results of a molecular orbital study o structures ad stabilities are presented for the hydrated for the hydrated clusters of the hydrogen fluoride (HF) molecule, HF(H_2O)_n (n = 1-7). For each cluster system, the most stable structure is found to be the non-proton-transferred type, but not the ion-pair form. The computational results are quite consistent with the weak acidity of the HF in water. The differences between HF(H_2O)_n and HCl(H_2O)_n cluster systems are further discussed for the structure and stability depending on the cluster size. The calculated IR spectra of the stable HF(H_2O)_n clusters predict large red-shifts of H-F and hydrogen-bonded O-H streching frequencies.
机译:给出了水合氟化氢(HF)分子HF(H_2O)_n(n = 1-7)的水合簇的分子轨道研究的结果,以及结构稳定性的结果。对于每个簇系统,发现最稳定的结构是非质子转移类型,而不是离子对形式。计算结果与水中HF的弱酸性完全一致。根据簇的大小,进一步讨论了HF(H_2O)_n和HCl(H_2O)_n簇系统之间的差异,以了解其结构和稳定性。计算得到的稳定的HF(H_2O)_n团簇的红外光谱可预测H-F和氢键O-H拉伸频率的大红移。

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