双硫脲冠醚对无机离子对的识别作用  

Recognition of Bisthiourea Crown Ether to Inorganic Ion-Pair

作　　者：王宇凯[1] 余天祥[1] 周世来[1] 

机构地区：[1]武汉大学化学与分子科学学院,湖北武汉430072

出　　处：《武汉大学学报（理学版）》2004年第4期441-445,共5页Journal of Wuhan University:Natural Science Edition

摘　　要：合成了两种新的双苯基硫脲二苯并 18 冠 6冠醚(L1,L2),研究了它们对NaH2PO4·2H2O,KH2PO4,KHSO4,KNO3,KHCO3等无机盐的识别能力,并用红外光谱、核磁共振氢谱、X 射线粉末衍射分析等方法对配合前后进行了表征.结果表明对这些无机盐而言L2的配合能力优于L1,L1与L2有类似的识别次序:KH2PO4>NaH2PO4>KHSO4>KNO3 KHCO3.Two novel bis(phenyl thiourea) DB-18-C-6(L_1,L_2) have been synthesized. The recognition of L_1,L_2 to NaH_(2)PO_(4) 2H_(2)O, KH_(2)PO_(4), KHSO_(4), KNO_3 and KHCO_3 has been studied via IR,^(1)H NMR and XRD. The data indicate that the binding capacity of L_2 is better than that of L_1, and they bound ions with a same selectivity in the order of KH_(2)PO_(4)>NaH_(2)PO_4>KHSO_(4 )>KNO_3KHCO_3.

关 键 词：双硫脲冠醚 合成 无机离子对 识别 

分 类 号：O626[理学—有机化学]