Supramolecular binding of amines with functional magnesium tetraphenylporphyrin for CO_2 capture  

作　　者：Fei Gao Jian-Bin Zhang Chun-Ping Li Tian-Rui Huo Xiong-Hui Wei 

机构地区：[1]College of Chemical Engineering,Inner Mongolia University of Technology [2]Department of Applied Chemistry,College of Chemistry & Molecular Engineering,Peking University

出　　处：《Chinese Chemical Letters》2013年第3期249-252,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.21166017);the Research Fund for the Doctoral Program of Higher Education of China(No. 20111514120002);the Natural Science Foundation of Inner Mongolia Autonomous Region(No.2011B50601);Inner Mongolia Autonomous Region's Educational Commission(No.NJZZ11068);the Inner Mongolia Talented People Development Fund,Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region(No.NJYT-12-B13);Program for New Century Excellent Talents in University(NCET-12-1017)

摘　　要：In this work, magnesium tetraphenylporphyrin （MgTPP） was used as a new supramolecular amine-fixing agent. Once introduced, C02 easily competes with MgTPP for amines, leading to the release of MgTPP. The processes can be explained by the fact that the association constant （Kassoc） values of MgTPP with amines were in the range of 0.6 （ethanolamine） to 3.9 （ethylenediamine）, which are lower than the Kassoc values of C02 with these amines. MgTPP interacted with aniline, ethanolamine, pyrrolidine, or ethylenediamine to form 1：1 adducts. Ethylenediamine presents a stronger Kassoc value for MgTPP, so it was considered an optimal agent for C02 capture.In this work, magnesium tetraphenylporphyrin （MgTPP） was used as a new supramolecular amine-fixing agent. Once introduced, C02 easily competes with MgTPP for amines, leading to the release of MgTPP. The processes can be explained by the fact that the association constant （Kassoc） values of MgTPP with amines were in the range of 0.6 （ethanolamine） to 3.9 （ethylenediamine）, which are lower than the Kassoc values of C02 with these amines. MgTPP interacted with aniline, ethanolamine, pyrrolidine, or ethylenediamine to form 1：1 adducts. Ethylenediamine presents a stronger Kassoc value for MgTPP, so it was considered an optimal agent for C02 capture.

关 键 词：Supramolecular bindingFixationAmineMagnesium tetraphenylporphyrinC02 capture 

分 类 号：O627.21[理学—有机化学]