Guest-responsive thermal expansion in the Zr-porphyrin metal-organic framework PCN-222

被引：6

作者：

Bostrom, H. L. B. ^{[1
]}

Bette, S. ^{[1
]}

Emmerling, S. T. ^{[2
]}

Terban, M. W. ^{[1
]}

Lotsch, B., V ^{[2
]}

机构：

[1] Max Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany

[2] Univ Munich LMU, Dept Chem, Butenandstr 5-13, D-81377 Munich, Germany

来源：

APL MATERIALS | 2022年 / 10卷 / 07期

关键词：

D O I：

10.1063/5.0091091

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We use powder x-ray diffraction under variable temperature to study the thermal expansion of the metal-organic framework (MOF) PCN-222. The thermal expansion increases drastically in magnitude following more aggressive heating, which is rationalized by enhanced flexibility upon guest removal. Moreover, the thermal response strongly depends on the temperature: the volumetric expansivity nearly quadruples and the expansion along c changes sign upon cooling. Our results highlight the large flexibility of MOFs and the role of guest species. (C) 2022 Author(s).

引用

页数：6

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