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研究了水溶液中∧－［Ｃｏ（ｅｄｔａ）］￣－氧化［Ｃｏ（ｅｎ）＿２ｏｘ］的外界电子转移反应的立体选择性。由氧化剂的∧－学异构体得到Δ－［（Ｃｏ（ｅｎ）＿２Ｏｘ］￣（４＋）的６３．４％对映体过量表明在过渡态中形成了∧Δ的优先选择。已注意到∧－［Ｃｏ（ｅｄｔａ）］－￣与［Ｃｏ（ｅｎ）＿２ｏｘ］￣（４＋）的有利缔合离子对具有ΔΔ立体选择性。以上可解释为在电子转移过程的活性前驱络合物中，氧化剂上未受阻的淡基构成的准Ｃ＿３轴特征的存在增强了∧－［Ｃｏ（ｅｄｔａ）－￣与［Ｃｏ（ｅｎ）＿２ｏｘ］的氢键相互作用；并且认为在这种情况下优选的离子对取向并不一定有利于电子转移发生。
The stereoselectivity of the external electron transfer reaction of ∧- [Co (edta)] ¯ -oxidized [Co (en) _2ox] in aqueous solution was investigated. A 63.4% enantiomeric excess of Δ - [(Co (en) _2Ox] ~ (4+) from the ∧ -isomer of the oxidant indicates the preference for ΛΔ in the transition state. It has been noted that ∧ - [Co (edta)] - and [Co (en) _2ox] ~ (4+) has a ΔΔ stereoselectivity as explained above in the active precursor complex for the electron transfer process, the oxidant The presence of quasi-C 3 -axis features formed by unimpeded light bases enhances the hydrogen-bonding interaction of ∧- [Co (edta) -¯ with [Co (en) _2ox]; and in this case the preferred ion pair Orientation does not necessarily favor electron transfer.