Li Yun-Lan, Wang Hai-Ling, Zhu Zhong-Hong, Li Juan, Zou Hua-Hong, Peng Jin-Mei, Liang Fu-Pei
School of Chemistry and Pharmaceutical Sciences, State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China.
State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 510640 Guangzhou, P. R. China.
Dalton Trans. 2021 Dec 20;51(1):197-202. doi: 10.1039/d1dt03137f.
Specially shaped high-nuclear lanthanide cluster assembly has attracted widespread attention, but the study of their self-assembly mechanism is still stagnant. Herein, we used a polydentate chelating bis-acylhydrazone ligand to construct a rare 16-nuclear dysprosium cluster 1 with a brucite-like structure. The capture agents, pivalic acid and di(pyridin-2-yl)methanone, were added into the reaction system, and the hexanuclear dysprosium cluster 2 and heptanuclear dysprosium cluster 3 were obtained, respectively. Clusters 2 and 3 support the out-to-in growth mechanism as key evidence. To the best of our knowledge, this study is the first to use truncation reaction to decipher the formation mechanism of high-nuclear lanthanide clusters.
特殊形状的高核镧系元素簇组装体已引起广泛关注，但其自组装机制的研究仍停滞不前。在此，我们使用多齿螯合双酰腙配体构建了一种具有水镁石样结构的罕见的十六核镝簇1。将捕获剂新戊酸和二（吡啶-2-基）甲酮加入反应体系，分别得到六核镝簇2和七核镝簇3。簇2和簇3支持从外向内生长机制作为关键证据。据我们所知，本研究首次使用截断反应来解读高核镧系元素簇的形成机制。
