Trefoil-shaped metallacycle and metallacage via heteroleptic self-assembly  

作　　者：Zhilong Jiang He Zhao Jun Wang Bangtang Chen Wenzhi Lv Yiming Li Qiangqiang Dong Die Liu Weiya Liu Min Wang Fan Fu Seok-Ho Hwang Mingzhao Chen Pingshan Wang 

机构地区：[1]Institute of Environmental Research at Greater Bay Area,Key Laboratory for Water Quality and Conservation of the Pearl River Delta,Ministry of Education,Guangzhou Key Laboratory for Clean Energy and Materials,Guangzhou University,Guangzhou 510006,China [2]Department of Organic and Polymer Chemistry,Hunan Key Laboratory of Micro&Nano Materials Interface Science,College of Chemistry and Chemical Engineering,Central SouthUniversity,Changsha 410083,China [3]College of Chemistry and Chemical Engineering,Qiannan Normal University for Nationalities,Duyun 558000,China [4]Materials Chemistry Engineering Laboratory,Department of Polymer Science&Engineering,Dankook University,Yongin,Gyeonggi-do 16890,South Korea

出　　处：《Chinese Chemical Letters》2023年第12期209-214,共6页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22101060 for M.C.,and 21971257 for P.w.);the Guangdong Natural Science Foundation(No.2022A1515012187 to M.C.);the Science and Technology Research Project of Guangzhou(Nos.202201020201 for M.C.and 202102010432 for ZJ..Science and technology support plan of Guizhou Province[2019]2860 for W.L.The authors gratefully acknowledge the Center for Advanced Research in CSU for the NMR measurements.

摘　　要：Template-oriented multi-component synthesis method has been proven to be an exceedingly reasonable and excellent method for the synthesis of giant two-dimensional(2D)and three-dimensional(3D)supramolecules,but designing and constructing heteroleptic and controllable self-assembly without unexpected by-products remains a challenge.Here we report two discrete trefoil-shaped metallacycle S1 and metallacage s2 by heteroleptic self-assembly using one hexaphenylbenzene core ligand and two capping ligands.The 2D trefoil-shaped metallacycle S1 could resemble the emblem of the classic'Mitsubishi motif.The use of template-oriented ligand and bent spacer ligand promotes the quantitative formation of the desired 3D trefoil-shaped metallacage S2.The formed metallacage S2 possesses a molecular weight up to 36 kDa,diameter 6.6 nm and height 3.0 nm.All supramolecular coordination complexes were fully characterized by NMR spectroscopy(^(1)H NMR,2D COSY,2D NOESY,2D DOSY),high-resolution electrospray ionization mass sectrometry ESI-MS.ESI-TWIM-MS,TEM and AFM.

关 键 词：Supramolecular coordination complex ‘Mitsubishi'molecule Trefoil-shaped metallacage Heteroleptic self-assembly TERPYRIDINE 

分 类 号：O641.4[理学—物理化学] O647.3[理学—化学]