Switching of Adsorption Properties in a Zwitterionic Metal-Organic Framework Triggered by Photogenerated Radical Triplets

被引：72
作者：
An, Wen [1 ]
Aulakh, Darpandeep [1 ]
Zhang, Xuan [2 ]
Verdegaal, Wolfgang [1 ]
Dunbar, Kim R. [2 ]
Wriedt, Mario [1 ]
机构：
[1] Clarkson Univ, Dept Chem & Biomol Sci, Potsdam, NY 13699 USA
[2] Texas A&M Univ, Dept Chem, College Stn, TX 77845 USA
来源：
CHEMISTRY OF MATERIALS | 2016年 / 28卷 / 21期
基金：
美国国家科学基金会;
关键词：
POROUS COORDINATION POLYMERS; CO2; CAPTURE; ELECTRON-TRANSFER; DESIGN; PHOTOCHROMISM; LINKERS; CRYSTAL; RELEASE; SEPARATION; BEHAVIOR;
D O I：
10.1021/acs.chemmater.6b03224
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new metal-organic framework (MOP) that features photoreactive zwitterionic pyridinium 4-carboxylate units has been designed. Upon UV light irradiation, these units form radical triplets permitted by intramolecular electron transfer between anionic carboxylate and cationic pyridinium groups. This reversible light-responsive behavior creates on/off switchable charge gradients localized at the MOF's major adsorption sites and, thus, allows significant control of the gas sorption process. It is shown that this strategy offers new design routes for accessing stimulus-responsive materials.
引用
收藏
页码：7825 / 7832
页数：8
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