期刊
CHEMICAL COMMUNICATIONS
卷 57, 期 2, 页码 187-190出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc06765b
关键词
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资金
- National Natural Science Foundation of China [21871061, 21901046]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01Z032]
- Science and Technology Planning Project of Guangdong Province [2017A050506051]
- Science and Technology Program of Guangzhou [201807010026]
- GRF grant from the Research Grants Council of HKSAR [CityU 11303519]
A linker molecule with thiophene functions was crystallized with Zr(IV) ions to form a semiconductive porous coordination solid, which was further treated to covalently link thiophene units and improve electronic conductivity and proton conductivity.
A linker molecule with four pendant thiophene functions was crystallized with Zr(IV) ions to forma semiconductive porous coordination solid (1.1 x 10(-5) S cm(-1)). Oxidative treatment with FeCl3 guests then coupled the thiophene units to form conjugated bridges as covalent crosslinks. The resulting hybrid of a metal-organic framework and conjugated polymer featured robust crystalline order that withstood long-term air exposure and broad pH (from 0 to 12) conditions. Moreover, the homocoupled thiophene units, conjugated through sulfide links (-S-) with the linker backbone, afforded higher electronic conductivity (e.g., >2.2 x 10(-3) S cm(-1)), which is characteristic of conductive polymer prototypes of polythiophene and polyphenylene sulfide. The crosslinked solid also exhibited proton conductivity that could be increased broadly upon H2SO4 treatment (e.g., from 5.0 x 10(-7) to 1.6 x 10(-3) S cm(-1)).
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