Macrocyclic versus acyclic preorganization in organoplatinum(Ⅱ)-based host-guest complexes  

作　　者：Xiaolong Zhang Yifei Han Guangyao Liu Feng Wang 

机构地区：[1]CAS Key Laboratory of Soft Matter Chemistry,iChEM (Collaborative Innovation Center of Chemistry for Energy Materials),Department of Polymer Science and Engineering,University of Science and Technology of China

出　　处：《Chinese Chemical Letters》2019年第11期1927-1930,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.21674106 and 21871245);CAS Youth Innovation Promotion Association(No.2015365);the Fundamental Research Funds for the Central Universities(No.WK3450000004)

摘　　要：Two host-guest systems have been constructed,by employing structurally similar terpyridine platinum(II)macrocycle and molecular tweezer as the synthetic receptors.The macrocycle/guest complex displays low-energy emission signal,reinforced non-covalent binding affinity,and enhanced photosensitization capability than those of the molecular tweezer/guest one.The discrepancy between macrocyclic and acyclic preorganization modes originates from the different numbers of Pt(II)Pt(II)metal-metal bonds in host-guest complexation structures.Two host-guest systems have been constructed,by employing structurally similar terpyridine platinum(Ⅱ) macrocycle and molecular tweezer as the synthetic receptors.The macrocycle/guest complex displays low-energy emission signal,reinforced non-covalent binding affinity,and enhanced photosensitization capability than those of the molecular tweezer/guest one.The discrepancy between macrocyclic and acyclic preorganization modes originates from the different numbers of Pt(Ⅱ)…Pt(Ⅱ) metal-metal bonds in host-guest complexation structures.

关 键 词：Supramolecular chemistry PREORGANIZATION Host-guest recognition Metal-metal interactions PHOTOSENSITIZATION 

分 类 号：O62[理学—有机化学]