Ligands derived from 4,4′-dinitrobiphenyl containing azacrown cavities in the 2,2′ position have been used in extraction and transport experiments. Control experiments with a system containing only one complexing cavity have demonstrated that the capability of forming a sandwich-type complex in the aforementioned ligand not only increases extraction but also the transport across a liquid membrane.
在提取和运输实验中已使用了在2,2'位衍生自含
4,4'-二硝基联苯的氮杂冠腔的
配体。用仅包含一个络合腔的系统进行的对照实验表明,在上述
配体中形成夹心型络合物的能力不仅增加了提取,而且还增加了通过液膜的转运。萃取研究还表明,存在于膜中的复合物相对于两个
配体具有1:1的
化学计量。电
化学研究也已经进行。包含两个络合腔的
配体在电
化学条件下能够产生2:1的络合物。