Zhang Ying, Sun Chi-Yu, Lin Lin
The Key Laboratory of the Inorganic Molecule-Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology Shenyang 110142 China
Department of Translational Medicine Research Centre, School of Pharmacy, Shenyang Medical College Shenyang 110034 China
RSC Adv. 2023 Aug 4;13(34):23396-23401. doi: 10.1039/d3ra04150f.
The combination of different pyridyl ligands and metal ions has proven to be a very reliable strategy for controlling the coordination mode of the heterometallic coordination nano-cages. Adjusting the length of the ligands could result in the selective synthesis of several heterometallic coordination nano-cages, either [8Rh + 2M]-4L, [8Rh + 2M]-5L or [8Rh + 4M]-6L cages, derived from the very same precursors (LH3tzdc) through half-sandwich rhodium self-assembly. Moreover, a series of [8Rh + 4M]-6L cages was chosen to exemplify the preparation. The rigidity of various pyridyl donor ligands caused the vertical nano-cage to be energetically preferred and was able to change the self-assembly process through ligand flexibility to selectively give the inclined nano-cage and cross nano-cage.
不同吡啶基配体与金属离子的组合已被证明是控制异金属配位纳米笼配位模式的一种非常可靠的策略。调节配体的长度可选择性地合成几种异金属配位纳米笼，即通过半夹心铑自组装从相同前体（LH3tzdc）衍生而来的[8Rh + 2M]-4L、[8Rh + 2M]-5L或[8Rh + 4M]-6L笼。此外，选择了一系列[8Rh + 4M]-6L笼来举例说明制备过程。各种吡啶基供体配体的刚性使得垂直纳米笼在能量上更受青睐，并且能够通过配体的柔韧性改变自组装过程，从而选择性地生成倾斜纳米笼和交叉纳米笼。
