Wong Wallace W H, Vickers Matthew S, Cowley Andrew R, Paul Rowena L, Beer Paul D
Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR.
Org Biomol Chem. 2005 Dec 7;3(23):4201-8. doi: 10.1039/b510068b. Epub 2005 Oct 31.
New (tetrakis)imidazolium macrocyclic receptor systems of variable cavity size have been synthesised by stepwise alkylation reactions of bis(imidazolium) precursor compounds. Proton NMR titration studies reveal the macrocycles to strongly bind halide and benzoate anions, with two receptor systems displaying notable selectivity for fluoride in competitive acetonitrile-water (9:1) solvent media.
通过双（咪唑鎓）前体化合物的逐步烷基化反应合成了具有可变腔尺寸的新型（四）咪唑鎓大环受体体系。质子核磁共振滴定研究表明，大环化合物能强烈结合卤离子和苯甲酸根阴离子，其中两个受体体系在竞争性乙腈 - 水（9:1）溶剂介质中对氟离子表现出显著的选择性。
