arms were synthesized and their binding to tetrabutylammonium chloride, acetate, and dihydrogen phosphate salts in aqueous DMSO mixtures was examined. The three-armed thiourea host was found to strongly and selectively bind H2PO4− even in DMSO solutions containing up to 30% water. This enabled the dihydrogen phosphate salt to be extracted from water into chloroform in its dibasic form despite the high
合成了一系列具有一到三个
硫脲臂的中性阴离子受体,并研究了它们与
水性
DMSO混合物中的
氯化四丁基
铵,
乙酸盐和
磷酸二氢盐的结合。三臂
硫脲主机被发现强烈和选择性结合ħ 2 PO 4 -甚至在含多达30%
水的
DMSO溶液。尽管HPO 4 2-的
水合热量很高,但
磷酸二氢盐仍能从
水中以二元形式提取成
氯仿。