Investigating the Imidazolium-Anion Interaction through the Anion-Templated Construction of Interpenetrated and Interlocked Assemblies
作者:Graeme T. Spence、Christopher J. Serpell、João Sardinha、Paulo J. Costa、Vítor Félix、Paul D. Beer
DOI:10.1002/chem.201102005
日期:2011.11.11
between imidazolium cations and coordinating anions is investigated through the anion‐templated assembly of interpenetrated and interlocked structures. The orientation of the imidazolium motif with respect to anion binding, and hence the hydrogen bond donor arrangement, was varied in acyclic receptors, interpenetrated assemblies, and the first mono‐imidazolium interlocked systems. Their anion recognition
咪唑鎓阳离子与配位阴离子之间的相互作用是通过互穿互锁结构的阴离子模板组装进行的。咪唑鎓基序相对于阴离子结合的取向以及氢键供体的排列在无环受体,互穿组件和第一个单咪唑鎓互锁系统中有所不同。通过溶液相1 H NMR研究,固态结构,分子动力学模拟和密度泛函理论计算研究了它们的阴离子识别特性和共构象。我们的发现表明,咪唑鎓-阴离子的结合相互作用主要受静电作用的影响,而氢键对取向的依赖性很小。