关于质子淌度的机理

本文从质子淌度反常现象出发,着重讨论了水溶液中质子淌度的三种机理:经典质子传递机理,质子传递的隧道效应机理,水分子场助再定向——隧道效应机理。通过比较,我们认为第三种机理是目前解释水溶液中质子淌度的较好的一种机理。

Mechanisms of Proton Mobility

In this paper, we discussed with emphasis three mechanisms of proton mobility in aqueous solution on the basis of the abnormal mobility of protons. The first is a classical proton transfer mechanism. The abnormal high phenomenon of proton mobility was explained qualitatively, but quantitatively calculating results of H+/UD+ etc differed from experimental values by using the mechanism. The second is a proton transfer tunneling mechanism. The mobility of protons was handled with the tunneling, its theroretical basis is reliable, but the mobility of protons obtained is higher than the experimental value. The third is a field-as-sisted reorientation of water-tunneling mechanism. Not only abnormal phenomena of proton mobility in aqueous solution were explaned, but also the mobility cf proten, UH+/ D+ , ect quantitatively coincided with experimental values. Through ccmparison we telieve that the third mechanism is better in explantion of proton mobility in aqueous solution at present.