Reduction of the insulating one‐dimensional coordination polymer [Cu(abpy)PF6]
We show in this work how lithium tellurolate Li(X)
- Award ID(s):
- 2247818
- PAR ID:
- 10501386
- Publisher / Repository:
- Royal Society of Chemistry
- Date Published:
- Journal Name:
- Chemical Science
- Volume:
- 14
- Issue:
- 43
- ISSN:
- 2041-6520
- Page Range / eLocation ID:
- 12277 to 12282
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Abstract n ,1 a (PF6), (abpy=2,2′‐azobispyridine) yields the conductive, porous polymer [Cu(abpy)]n ,2 a . Pressed pellets of neutral2 a exhibit a conductivity of 0.093 S cm−1at room temperature and a Brunauer–Emmett–Teller (BET) surface area of 56 m2 g−1. Fine powders of2 a have a BET surface area of 90 m2 g−1. Cyclic voltammetry shows that the reduction of1 a (PF6) to2 a is quasi‐reversible, indicative of facile charge transfer through the bulk material. The BET surface area of the reduced polymer2 can be controlled by changing the size of the counteranion X in the cationic [Cu(abpy)X]n . Reduction of [Cu(abpy)X]n with X=Br (2 b ) or BArF(2 c ; BArF=tetrakis(3,5‐bis(trifluoromethyl)phenyl)), affords [Cu(abpy)]n polymers with surface areas of 60 and 200 m2 g−1, respectively. -
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Abstract Reduction of the insulating one‐dimensional coordination polymer [Cu(abpy)PF6]
n ,1 a (PF6), (abpy=2,2′‐azobispyridine) yields the conductive, porous polymer [Cu(abpy)]n ,2 a . Pressed pellets of neutral2 a exhibit a conductivity of 0.093 S cm−1at room temperature and a Brunauer–Emmett–Teller (BET) surface area of 56 m2 g−1. Fine powders of2 a have a BET surface area of 90 m2 g−1. Cyclic voltammetry shows that the reduction of1 a (PF6) to2 a is quasi‐reversible, indicative of facile charge transfer through the bulk material. The BET surface area of the reduced polymer2 can be controlled by changing the size of the counteranion X in the cationic [Cu(abpy)X]n . Reduction of [Cu(abpy)X]n with X=Br (2 b ) or BArF(2 c ; BArF=tetrakis(3,5‐bis(trifluoromethyl)phenyl)), affords [Cu(abpy)]n polymers with surface areas of 60 and 200 m2 g−1, respectively. -
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Secondary‐ion mass spectrometry (SIMS) is used to determine impurity concentrations of carbon and oxygen in two scandium‐containing nitride semiconductor multilayer heterostructures: Sc
x Ga1−x N/GaN and Scx Al1−x N/AlN grown by molecular beam epitaxy (MBE). In the Scx Ga1−x N/GaN heterostructure grown in metal‐rich conditions on GaN–SiC template substrates with Sc contents up to 28 at%, the oxygen concentration is found to be below 1 × 1019 cm−3, with an increase directly correlated with the scandium content. In the Scx Al1−x N–AlN heterostructure grown in nitrogen‐rich conditions on AlN–Al2O3template substrates with Sc contents up to 26 at%, the oxygen concentration is found to be between 1019and 1021 cm−3, again directly correlated with the Sc content. The increase in oxygen and carbon takes place during the deposition of scandium‐alloyed layers. -
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Abstract The design, synthesis, and characterization of the novel polymerizable ligand 3,5‐bis(3,4‐ethylenedioxythien‐2‐yl)‐
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1039/D3SC03470D
