effects of electron-withdrawing (EWG) and electron-donating (EDG) groups on resulting carborane redox potentials were assessed using electrochemical means, and the resulting Lewis basicities were quantified using empirical and competition-based NMR experiments. In organic solution, carboranes substituted with EWGs exhibited weaker coordination to UO22+, whereas those with EDGs exhibited stronger coordination
我们报告了一系列新型可调节 1,2-双(二芳基膦氧化物)-邻-碳
硼烷的合成和表征,它们是我们之前报道的
铀酰 (UO 2 2+ ) 捕获剂 1,2-(Ph 2 PO)的衍
生物2 -1,2-C 2 B 10 H 10 ( PO Cb )。该系列具有新的PO Cb笼取代变体,即 9-I- PO Cb ( PO CbI )、9,12-I 2 - PO Cb ( PO CbI 2 )、9,12-Me 2 - PO Cb ( PO CbMe 2 )、9,12-Et 2 - PO Cb ( PO CbEt 2 )和4,5,7,8,9,10,11,12-Me 8 - PO Cb ( PO CbMe 8 )。芳基取代的变体包括 1,2-((4-MeO-Ph) 2 PO) 2 -Cb ( (OMe)PO Cb ) 和 1,2-((4-F-Ph) 2 PO) 2 -Cb ( (F)PO Cb )。使用电
化学方法评估吸电子