四极
离解(化学)
化学
水溶液
分子
共价键
氢键
化学物理
物理化学
结晶学
原子物理学
有机化学
物理
作者
Fan Xie,Denis S. Tikhonov,Melanie Schnell
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2024-06-28
卷期号:384 (6703): 1435-1440
被引量:1
标识
DOI:10.1126/science.ado7049
摘要
Investigating the dissociation of acids in the presence of a limited number of water molecules is crucial for understanding various elementary chemical processes. In our study, focusing on HCl(H 2 O) n clusters (where HCl is hydrogen chloride and H 2 O is water) formed in a cold and isolated jet expansion, we used the nuclear quadrupole coupling tensor obtained through rotational spectroscopy to decipher the nature of the hydrogen-chlorine (H-Cl) chemical bond in a microaqueous environment. For n = 1 to 4, the H-Cl bond is covalent. At n = 5 and 7, the contact ion pair of H 3 O + Cl − is spontaneously formed within the hydrogen bond networks of book and cube acid-water clusters, respectively.
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