[ACIE] 我室孔祥建教授发表论文:Hierarchical Assembly of Coordination Macromolecules with Atypical Geometries: Gd44Co28 Crown and Gd95Co60 Cage

发布日期:2022年03月07日   浏览次数:

我室孔祥建教授在 ACIE 上发表论文:Hierarchical Assembly of Coordination Macromolecules with Atypical Geometries: Gd44Co28 Crown and Gd95Co60 Cage

摘要:The discovered giant clusters are always highly symmetric owing to the spontaneous assembly of one or two basic units. Herein we report the Gd44Co28 crown and Gd95Co60 cage, formulated as [Gd44Co28(IDA)20(OH)72 (CO3)12(OAc)28(H2O)64]⋅(ClO4)24 and [Na4Gd95Co60(IDA)40 (OH)150(CO3)40(OAc)58(H2O)164] ⋅ (ClO4)41 (H2IDA=iminodiacetic acid), respectively, by providing a library containing multiple low-nuclearity units. The heart-like units and crown-like tetramer found in both compounds indicate unprecedented assembly levels, leading to an atypical geometry characteristic compared to the giant clusters directly assembled by regular units. These two clusters not only significantly increase the size of Ln−Co clusters but also exhibit the enhanced magnetic entropy change at ultra-low temperatures. This work provided an effective way to fabricate cluster compounds with giant size and geometry complexity simultaneously.

文章链接:https://onlinelibrary.wiley.com/doi/10.1002/anie.202200537