This compound consists of positively charged potassium ions and negatively charged trifluoromethylsulfonates.

这种混合物中包含了带正电荷的钾离子和带负电荷的聚三氟甲基磺胺离子。

Some ionic compounds form crystals that in-corporate a definite proportion of molecules of water as well as the ions of the compound itself.

一些离子化合物形成含一定比例的水分子和离子化合物的晶体。

Calixarene is a kind of respecting host macrocyclic compound followed cyclodextrin and crown ether, and has strong ability of selective extraction of metal ions.

杯芳烃作为继环糊精、冠醚之后的第三代大环类主体化合物，对金属离子具有较强的选择性萃取作用。