Premium
Structural‐Deformation‐Energy‐Modulation Strategy in a Soft Porous Coordination Polymer with an Interpenetrated Framework
Author(s) -
Gu Yifan,
Zheng JiaJia,
Otake Kenichi,
Sugimoto Kunihisa,
Hosono Nobuhiko,
Sakaki Shigeyoshi,
Li Fengting,
Kitagawa Susumu
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202003186
Subject(s) - flexibility (engineering) , metal organic framework , hydrogen bond , materials science , polymer , deformation (meteorology) , porosity , rational design , nanotechnology , modulation (music) , adsorption , molecule , chemistry , physics , composite material , organic chemistry , statistics , mathematics , acoustics
To achieve unique molecular‐recognition patterns, a rational control of the flexibility of porous coordination polymers (PCPs) is highly sought, but it remains elusive. From a thermodynamic perspective, the competitive relationship between the structural deformation energy ( E def ) of soft PCPs and the guest interaction is key for selective a guest‐triggered structural‐transformation behavior. Therefore, it is vital to investigate and control E def to regulate this competition for flexibility control. Driven by these theoretical insights, we demonstrate an E def ‐modulation strategy via encoding inter‐framework hydrogen bonds into a soft PCP with an interpenetrated structure. As a proof of this concept, the enhanced E def of PCP enables a selective gate‐opening behavior toward CHCl 3 over CH 2 Cl 2 by changing the adsorption‐energy landscape of the compounds. This study provides a new direction for the design of functional soft porous materials.