The structure of the hydrogen ion (H(aq)+) in water.

The structure of the hydrogen ion (H(aq)+) in water.
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DOI:
10.1021/ja9101826
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发表时间:
2010-02-10
影响因子:
15
通讯作者:
Reed, Christopher A.
Reed, Christopher A.
中科院分区:
化学1区
文献类型:
--
作者:
Stoyanov, Evgenii S.;Stoyanova, Irina V.;Reed, Christopher A.

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水中的Haq+离子是一种独特的H13O6+实体,它定义了正电荷离域的边界。它的中心单元既不是C3v H3O+本征型离子,也不是典型的H5O2+ Zundel型离子。红外光谱表明,H13 O6+离子具有意想不到的长中心O O分离(2.43 Å),这表明与气相和固相相比,液态水的环境在离域正电荷方面具有独特的优势。这将改变化学教科书中对Haq+的描述,并且可能需要将更广泛的正电荷离域纳入水溶液质子传输机制的描述中。
The Haq+ ion in water is a unique H13O6+ entity that defines the boundary of positive charge delocalization. Its central unit is neither a C3v H3O+ Eigen-type ion nor a typical H5O2+ Zundel-type ion. IR spectroscopy indicates that the H13O6+ ion has an unexpectedly long central O⋯O separation (≫2.43 Å) showing that, compared to gas and solid phases, the environment of liquid water is uniquely proficient in delocalizing positive charge. The will change the description of Haq+ in textbooks of chemistry and a more extensive delocalization of positive charge may need to be incorporated into descriptions of mechanisms of aqueous proton transport.
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