College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
Molecules. 2021 Feb 11;26(4):952. doi: 10.3390/molecules26040952.
Recently, metal-coordinated orthogonal self-assembly has been used as a feasible and efficient method in the construction of polymeric materials, which can also provide supramolecular self-assembly complexes with different topologies. Herein, a cryptand with a rigid pyridyl group on the third arm derived from BMP32C10 was synthesized. Through coordination-driven self-assembly with a bidentate organoplatinum(II) acceptor or tetradentate Pd(BF)•4CHCN, a di-cryptand complex and tetra-cryptand complex were prepared, respectively. Subsequently, through the addition of a di-paraquat guest, linear and cross-linked supramolecular polymers were constructed through orthogonal self-assembly, respectively. By comparing their proton nuclear magnetic resonance (H NMR) and diffusion-ordered spectroscopy (DOSY) spectra, it was found that the degrees of polymerization were dependent not only on the concentrations of the monomers but also on the topologies of the supramolecular polymers.
最近，金属配位正交自组装已被用作构建聚合物材料的一种可行且有效的方法，它还可以为超分子自组装配合物提供不同的拓扑结构。本文合成了一种刚性吡啶基取代的三联吡啶衍生的 cryptand。通过与双齿有机铂 (II) 受体或四齿 Pd(BF)•4CHCN 的配位驱动自组装，分别制备了双 cryptand 配合物和四 cryptand 配合物。随后，通过添加二对醌客体，通过正交自组装分别构建了线性和交联超分子聚合物。通过比较它们的质子核磁共振 (H NMR) 和扩散有序谱 (DOSY) 谱，发现聚合度不仅取决于单体的浓度，还取决于超分子聚合物的拓扑结构。
