Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan.
Department of Molecular Engineering, Kyoto University, Kyoto 615-8510, Japan.
Inorg Chem. 2021 Nov 1;60(21):16678-16685. doi: 10.1021/acs.inorgchem.1c02570. Epub 2021 Oct 15.
Experimental and theoretical investigations of the self-assembly process of a Pd(II) coordination ML square-based pyramid (SP) were conducted. It was found that the probable self-assembly pathway, in which the dimerization of ML with two M leads to SP, expected from the connectivity of the building blocks is not a major self-assembly pathway to the ML SP. Whether the ML SP is assembled or ML is trapped is determined by an inter- or intramolecular reaction in a chain-like MLX, where X is a leaving ligand. The kinetically trapped state where the ML SP is produced from ML beyond the Boltzmann distribution was realized by a concentration-induced process and was kept for at least 2 months at 298 K.
实验和理论研究了 Pd(II)配位 ML 四角金字塔（SP）的自组装过程。发现可能的自组装途径不是 ML SP 的主要自组装途径，其中 ML 与两个 M 的二聚化导致 SP，这是从构建块的连接性推断的。ML SP 是否组装或 ML 是否被捕获取决于链状 MLX 中的分子内或分子间反应，其中 X 是离去配体。通过浓度诱导过程实现了动力学捕获状态，其中 ML SP 从 ML 中产生，超出了玻尔兹曼分布，在 298 K 下至少保持 2 个月。
