The oxidation potentials of these compounds are higher than those of TMT-TTF analogue probably due to the existence of electron-withdrawing ester linkages in the distance.
它们的氧化电位均高于对照化合物TMT-TTF，这可归因于位于分子远处的吸电子的烷氧羰基的存在。
2
Due to the strong electron-withdrawing property of CF3 - group the substitution of ortho-chloro shows a higher probability, implying the in-principle feasibility of the reaction.
由于此物质中CF 3具有强吸电子能力，所以其邻位的氯更易被取代，这就说明此反应理论上是能够发生的。
3
With increasing the electronwithdrawing substituents in the phenoxy ring, the catalytic activity was increased, and the molecular weight of polyethylene decreased.