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- Title
Cu<sub>3</sub>(hexaiminotriphenylene)<sub>2</sub>: An Electrically Conductive 2D Metal-Organic Framework for Chemiresistive Sensing.
- Authors
Campbell, Michael G.; Sheberla, Dennis; Liu, Sophie F.; Swager, Timothy M.; Dincă, Mircea
- Abstract
The utility of metal-organic frameworks (MOFs) as functional materials in electronic devices has been limited to date by a lack of MOFs that display high electrical conductivity. Here, we report the synthesis of a new electrically conductive 2D MOF, Cu3(HITP)2 (HITP=2,3,6,7,10,11-hexaiminotriphenylene), which displays a bulk conductivity of 0.2 S cm−1 (pellet, two-point-probe). Devices synthesized by simple drop casting of Cu3(HITP)2 dispersions function as reversible chemiresistive sensors, capable of detecting sub-ppm levels of ammonia vapor. Comparison with the isostructural 2D MOF Ni3(HITP)2 shows that the copper sites are critical for ammonia sensing, indicating that rational design/synthesis can be used to tune the functional properties of conductive MOFs.
- Subjects
IMINO compounds; METAL-organic frameworks; CHEMICAL detectors; CHEMICAL resistance; ELECTRIC conductivity; COPPER; ELECTRIC properties
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 14, p4423
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201411854