Generally speaking, H3O+(H2O)1,2,3 do not react with molecules of carbon hydrogen, but with pole molecules of containing oxygen, MH2 ions are produced.

• H3O+(H2O)1,2,3一般不与碳氢化合物反应，但可与含氧的有机物极性分子进行配位开关反应，生成MH2+离子。