Chelate and mini-chelate effects on sulfate binding was explored for six amide-, amide/amine-, urea-, and urea/amine-based ligands in water-mixed DMSO-d6. The urea hosts were highly selective for SO42−, and displayed enhanced binding and greater tolerance for increasing water content as the number of chelate groups increased.
在
水-混合
DMSO-
d6中,探讨了六种基于酰胺、酰胺/胺、
脲和
脲/胺的
配体对
硫酸根结合的螯合和微螯合效应。
脲宿主对SO
42−具有很高的选择性,并且随着螯合基团数量的增加,显示出增强的结合能力和对增加
水含量的更大耐受性。