Anion binding with biphenyl-bis-urea derivatives: solution and solid-state studies
作者:Toni Grgurić、Mario Cetina、Manuel Petroselli、Corrado Bacchiocchi、Zoran Dzolić、Massimo Cametti
DOI:10.1039/d0nj03670f
日期:——
characterized bis-urea derivatives 1–3, featuring a biphenyl spacer, and studied their anion binding properties in DMSO solution and in the solid state. In solution, 1 : 1 complexes were observed with association constant K values in the 103–104 M−1 range with a general preference for acetate over dihydrogenphosphate for all three receptors. We were also able to obtain and characterize, by X-ray diffraction on
在这项工作中,我们合成并表征了具有联苯间隔基的双脲衍生物1-3,并研究了它们在DMSO溶液和固态中的阴离子结合性能。在溶液中,观察到1:1的配合物,其缔合常数K值在10 3 –10 4 M -1范围内,对于所有三个受体,乙酸盐普遍优于磷酸二氢盐。通过单晶的X射线衍射,我们还能够获得并表征十种受体-阴离子络合物,包括乙酸根和磷酸二氢根,以及磷酸一氢根,卤化物和硝酸根离子。线性(阴离子受体)n 观察并详细描述了阵列,多孔框架和非中心对称结构。