Shen Yang-Lin, Jin Jun-Ling, Fang Jun-Jie, Liu Zheng, Shi Jian-Lin, Xie Yun-Peng, Lu Xing
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China.
Henan Key Laboratory of Functional Salt Materials, Center for Advanced Materials Research, Zhongyuan University of Technology, Zhengzhou, 450007, China.
Inorg Chem. 2021 May 3;60(9):6276-6282. doi: 10.1021/acs.inorgchem.0c03790. Epub 2021 Apr 19.
A zwitterionic ligand 3-(triethylammonio)propyne (TAP) has been employed to construct nine silver ethynide compounds for the first time. Single-crystal X-ray analyses reveal that compounds and are silver ethynide assemblies based on the Ag subunits and clusters - are small discrete clusters of Ag, Ag, Ag, and Ag, respectively, ligated by the bulky TAP ligand with different auxiliary ligands. In addition, upon acquiring the tripod-like BuPO, a unprecedented 80 nuclei silver ethynide cluster was isolated and determined to be [(CFCO)@Ag(TAP)(BuPO)(CFCO)] by crystallography and thermogravimetric analysis. The symmetry of Ag was deconstructed to be two [Ag(TAP)(BuPO)(CFCO)] secondary building subunits arranged in a cross way, with five CFCO trapped in the center. These results highlight that the elaborate selection of ethynide ligands is of great importance in the synthesis of novel silver ethynide clusters.
首次使用两性离子配体3-(三乙铵基)丙炔(TAP)构建了九种乙炔银化合物。单晶X射线分析表明，化合物 和 是基于Ag亚基的乙炔银组装体，而簇——分别是由庞大的TAP配体与不同辅助配体连接的Ag、Ag、Ag和Ag的小离散簇。此外，在获得三脚架状的BuPO后，分离出一个前所未有的80核乙炔银簇，并通过晶体学和热重分析确定其为[(CFCO)@Ag(TAP)(BuPO)(CFCO)]。Ag的 对称性被解构为两个以交叉方式排列的[Ag(TAP)(BuPO)(CFCO)]二级构建亚基，五个CFCO被困在中心。这些结果突出表明，乙炔配体的精心选择在新型乙炔银簇的合成中至关重要。
