A trefoil-shaped macrocycle with [12]-imidazolium cations  

作　　者：Le Zhang Li-Ying Sun Jin-Ping Chang Hui-Yu Xie Ya-Wen Zhang Yi-Fan Zhang Ying-Feng Han 

机构地区：[1]Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education,College of Chemistry and Materials Science,Northwest University,Xi'an 710127,China

出　　处：《Chinese Chemical Letters》2022年第10期4567-4571,共5页中国化学快报（英文版）

基　　金：financial support from the National Natural Science Foundation of China(Nos.22025107,21722105,22101225);the National Youth Top-notch Talent Support Program of China;the Key Science and Technology Innovation Team of Shaanxi Province(Nos.2019TD-007,2019JLZ-02);the FM&EM International Joint Laboratory of Northwest University.

摘　　要：A trefoil-like two-dimensional(2D)C_(3v) symmetric organic[12]-imidazolium cation H_(12)-2(PF_(6))_(12) featuring three[4]-imidazolium macrocycles was synthesized in three steps.The reaction of a dodecakis H_(12)-1(PF_(6))_(12) imidazolium salt with Ag_(2)O resulted in the formation of a hexanuclear AgI dodecacarbene assembly[Ag_(6)(1)](PF_(6))_(6).Upon UV irradiation,the photodimerization of the cinnamic ester pendants of[Ag_(6)(1)](PF_(6))_(6) led to the generation of a trefoil-like complex[Ag_(6)(2)](PF_(6))_(6) containing three closed metallacycles.Removal of metal ions allowed for the synthesis of the target molecule.All complexes were fully characterized by NMR spectroscopy(^(1)H,^(13)C{^(1)H}and 2D NMR)and high-resolution electrospray ionization mass spectrometry(HR-ESI-MS).

关 键 词：Trefoil-shaped macrocycle N-Heterocyclic carbenes Photochemical reaction IMIDAZOLIUM 

分 类 号：O641.4[理学—物理化学]