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Characterization of the Weak SS Bonds in the OSSSO and O2SSSO2 Molecules

机译:OSSSO和O2SSSO2分子中弱SS键的表征

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摘要

The weak S1-S3 bonds in the OSSSO trans-disulfoxide and the corresponding sulfone, O2SSSO2, are readdressed at the B3LYP/6-31+G(d) level using both the atoms-in-molecules (AIM) and the electron localization function (ELF) approaches. The S1-S3 bonds are clearly characterized as fractional (i.e., with a bond number or bond order which is less than unity) or protocovalent and are very similar in nature to the weak N-N bond in O2NNO2. These results are in accord with what is obtained by inspection of valence bond structures of the increased-valence type.
机译:OSSSO反式二亚砜中的弱S1-S3键和相应的砜O2SSSO2在B3LYP / 6-31 + G(d)水平上使用分子内原子(AIM)和电子定位功能进行了重新寻址(ELF)方法。 S1-S3键清楚地表征为分数(即,键数或键序小于1的键)或原价,并且本质上与O2NNO2中的弱N-N键相似。这些结果与通过检查价态类型的价键结构获得的结果一致。

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