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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
【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.
【Abstract】 Two novel bis(phenyl thiourea) DB-18-C-6(L1,L2) have been synthesized. The recognition of L1,L2 to NaH2PO4 2H2O, KH2PO4, KHSO4, KNO3 and KHCO3 has been studied via IR,1H NMR and XRD. The data indicate that the binding capacity of L2 is better than that of L1, and they bound ions with a same selectivity in the order of KH2PO4>NaH2PO4>KHSO4 >KNO3KHCO3.
【关键词】 双硫脲冠醚;
合成;
无机离子对;
识别;
【Key words】 bisthiourea crown ether; synthesis; inorganic ion-pair; recognition;
【Key words】 bisthiourea crown ether; synthesis; inorganic ion-pair; recognition;
- 【文献出处】 武汉大学学报(理学版) ,Wuhan University Journal(Natural Science Edition) , 编辑部邮箱 ,2004年04期
- 【分类号】O621
- 【被引频次】1
- 【下载频次】143