看了一篇文献，文中提到"It is assumed that the interaction between hydroperoxide and onium cation is mainly electrostatic in nature and that its effectivity depends on the positive charge density on the onium cation, which is controlled by the nature and dimensions of the counteranion."我想知道文中提到的正电荷密度如何测定啊？阴离子尺寸的大小如何能够影响到对应阳离子的正电荷密度？请指教，谢谢
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都是祝福的，谁能给点技术层面上的东西哦 
