Mononuclear Clusterfullerene Single-Molecule Magnet Containing Strained Fused-Pentagons Stabilized by a Nearly Linear Metal Cyanide Cluster

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• 作者：Dr. Fupin Liu ; Dr. Song Wang ; Dr. Cong-Li Gao ; Dr. Qingming Deng ; Xianjun Zhu ; Aram Kostanyan ; Dr. Rasmus Westerströ ; m ; Fei Jin ; Prof. Dr. Su-Yuan Xie ; Dr. Alexey A. Popov ; Prof. Dr. Thomas Greber and Prof. Dr. Shangfeng Yang
• 刊名：Angewandte Chemie International Edition
• 出版年：2017
• 出版时间：February 6, 2017
• 年：2017
• 卷：56
• 期：7
• 页码：1830-1834
• 全文大小：1688K
• ISSN：1521-3773

文摘

Fused-pentagons results in an increase of local steric strain according to the isolated pentagon rule (IPR), and for all reported non-IPR clusterfullerenes multiple (two or three) metals are required to stabilize the strained fused-pentagons, making it difficult to access the single-atom properties. Herein, we report the syntheses and isolations of novel non-IPR mononuclear clusterfullerenes MNC@C₇₆ (M=Tb, Y), in which one pair of strained fused-pentagon is stabilized by a mononuclear cluster. The molecular structures of MNC@C₇₆ (M=Tb, Y) were determined unambiguously by single-crystal X-ray diffraction, featuring a non-IPR C_2v(19138)-C₇₆ cage entrapping a nearly linear MNC cluster, which is remarkably different from the triangular MNC cluster within the reported analogous clusterfullerenes based on IPR-obeying C₈₂ cages. The TbNC@C₇₆ molecule is found to be a field-induced single-molecule magnet (SMM).