A Demonstration of Anion Templation and Selectivity in Pseudorotaxane Formation We thank the EPSRC and the University of Reading for funds for the Image Plate System and the Natural Sciences and Engineering Research Council of Canada for financial support to Dr. Wisner.
A halogen- and hydrogen-bonding [2]catenane for anion recognition and sensing
作者:James M. Mercurio、Antonio Caballero、James Cookson、Paul D. Beer
DOI:10.1039/c4ra15380d
日期:——
A mixed halogen- and hydrogen-bonding hetero-[2]catenane has been synthesised via an anion templated Grubbs' II-catalysed RCM clipping mechanical bond forming methodology. 1H NMR spectroscopy and fluorescence titration experiments demonstrated the interlocked catenane host to be capable of binding and sensing anions, in particular forming strong associations with acetate and dihydrogen phosphate.
混合的卤素和氢键杂[2]联烷已通过阴离子模板Grubbs II催化的RCM剪切机械键形成方法合成。1 H NMR光谱和荧光滴定实验表明,联锁的链烷主体能够结合和感测阴离子,特别是与乙酸根和磷酸二氢根形成强缔合。
Halogen bonding rotaxanes for nitrate recognition in aqueous media
作者:Sean W. Robinson、Paul D. Beer
DOI:10.1039/c6ob02339h
日期:——
Targeting the biologically and environmentally important nitrate anion, halogen bonding (XB) has been incorporated into three novel [2]rotaxane structural frameworks via an axle component containing covalently linked 3,5-bis-iodotriazole pyridine–pyridinium motifs. This has enabled the recognition of nitrate in aqueous media containing up to 90% water with equivalent binding affinity to chloride, illustrating
Chelated charge assisted halogen bonding enhanced halide recognition by a pyridinium-iodotriazolium axle containing [2]rotaxane
作者:Alexander E. Hess、Paul D. Beer
DOI:10.1039/c6ob01851c
日期:——
Four halogen and hydrogen bonding rotaxane host systems featuring pyridinium bis-amide-iodotriazole/prototriazole and pyridinium bis-amide-iodotriazolium/prototriazolium axle components have been synthesized by CuAAC-mediated mono-stoppering chloride anion templation and post-rotaxanation methylation reactions. In competitive 45 : 45 : 10 CDCl3–CD3OD–D2O aqueous solvent media, the dicationic halogen
Nitrate Anion Recognition in Organic-Aqueous Solvent Mixtures by a Bis(triazolium)acridine-Containing [2]Rotaxane
作者:Vicente Martí-Centelles、Paul D. Beer
DOI:10.1002/chem.201406066
日期:2015.6.22
The synthesis of a novel [2]rotaxane host system containing a bis(triazolium)acridine‐based axle component is reported. 1H NMR anion‐binding titrations reveal that the rotaxane is able to recognise selectively the NO3− anion over a range of more basic oxoanions (AcO−, HCO3− and H2PO4−) in a competitive organic–aqueous solvent mixture.
报道了一种新型的[2]轮烷宿主系统的合成,该系统包含基于双(三唑鎓)ac啶的车轴组分。1 1 H NMR阴离子结合滴定显示,该轮烷是能够选择性地识别NO 3 -的阴离子在一定范围的更基本的含氧阴离子的(ACO -,HCO 3 -和H 2 PO 4 - )在竞争性有机水溶剂混合物。
A catenane host system containing integrated triazole C–H hydrogen bond donors for anion recognition
作者:Nicholas G. White、Paul D. Beer
DOI:10.1039/c2cc34210c
日期:——
A 3,5-bis(triazole)-pyridinium motif is integrated into a catenane structural framework via chloride anion templation. The catenane host system displays a high degree of selectivity for halide anions over dihydrogen phosphate.