A bis-bisurea receptor with the R,R-cyclohexane-1,2-diamino spacer for phosphate and sulfate ions
作者:Meiying Wei、Biao Wu、Lei Zhao、Hui Zhang、Shaoguang Li、Yanxia Zhao、Xiao-Juan Yang
DOI:10.1039/c2ob26591e
日期:——
A bis-bisurea receptor (L) based on the R,R-cyclohexane-1,2-diamino scaffold forms an uncommon 2 : 2 complex (1) with the monohydrogen phosphate ion (HPO42−) and a 1 : 1 complex (2) with the sulfate ion (SO42−). Solution binding properties of the two anions were studied by 1H NMR, UV-vis, and circular dichroism (CD) methods.
基于R,R-环己烷-1,2-二胺支架的双氨基受体(L)与单氢磷酸根离子(HPO4²−)形成了一种不常见的2:2复合物(1),并与硫酸根离子(SO4²−)形成了1:1复合物(2)。通过1H NMR、紫外可见光(UV-vis)和圆二色性(CD)方法研究了这两种阴离子的溶液结合特性。