期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 14, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202117417
关键词
Coordination Polymers; Gas Sorption; Magnetism; Reversible Dimensional Transformation
资金
- ACCEL program of the Japan Science and Technology Agency (JST) [JPMJAC1501]
- JSPS KAKENHI [20H02708, 20H05623]
- Grants-in-Aid for Scientific Research [20H02708] Funding Source: KAKEN
A reversible transformation between 1D, 2D, and 3D has been demonstrated in coordination polymers comprised of Cu-II ions and bidentate terephthalate. These dimensional transformations have significantly altered chemical and physical properties, including gas sorption and magnetism.
A reversible transformation between 1D, 2D, and 3D is demonstrated for the first time in coordination polymers comprising Cu-II ions and bidentate terephthalate (BDC2-). 1D uniform chains were reversibly transformed into 2D layers with the construction of Cu-paddlewheels by eliminating water molecules. 2D/3D reversible transformation was achieved by removing/rebinding N,N-dimethylformamide coordinated to the paddlewheels. These dimensional transformations significantly changed chemical and physical properties such as gas sorption and magnetism. Although the uptake in open-framework 1D and 2D Cu-BDC was insignificant, pronounced absorption was observed for 3D Cu-BDC. Drastic difference in magnetic behavior is consistent with their coordination structures; uniform 1D chain of Cu-II in 1D Cu-BDC and 2D sheet based on Cu-II paddlewheel dimers in 2D Cu-BDC. Ferromagnetic behavior observed in air-exposed 3D Cu-BDC is attributed to the 3D structure formed by the connection of 2D sheets.
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