Published December 15, 2014
| Supplemental Material
Journal Article
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Catalysis of Proton Reduction by a [BO_4]-Bridged Dicobalt Glyoxime
Chicago
Abstract
We report the preparation of a dicobalt compound with two singly proton-bridged cobaloxime units linked by a central [BO_4] bridge. Reaction of a doubly proton-bridged cobaloxime complex with trimethyl borate afforded the compound in good yield. Single-crystal X-ray diffraction studies confirmed the bridging nature of the [BO_4] moiety. Using electrochemical methods, the dicobalt complex was found to be an electrocatalyst for proton reduction in acetonitrile solution. Notably, the overpotential for proton reduction (954 mV) was found to be higher than in the cases of two analogous single-site cobalt glyoximes under virtually identical conditions.
Additional Information
© 2014 American Chemical Society. Received: July 28, 2014; published: November 19, 2014. The authors thank Ivonne Ferrer for helpful discussions and Aaron Sattler for assistance in preparation of Figure 2. This research was carried out in part at the Molecular Materials Research Center of the Beckman Institute at Caltech. The research was supported by the Resnick Sustainability Institute at Caltech (Postdoctoral Fellowship to J.D.B.) and the NSF CCI Solar Fuels Program (CHE-1305124 and a CCI Postdoctoral Fellowship to J.D.B.). The Bruker KAPPA APEXII X-ray diffractometer was purchased via an NSF CRIF:MU award to the California Institute of Technology (CHE-0639094). Gas chromatographs were collected at the Joint Center for Artificial Photosynthesis at Caltech.Attached Files
Supplemental Material - ic501804h_si_001.pdf
Supplemental Material - ic501804h_si_002.cif
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Additional details
- Alternative title
- Catalysis of Proton Reduction by a [BO4]-Bridged Dicobalt Glyoxime
- Eprint ID
- 52221
- DOI
- 10.1021/ic501804h
- Resolver ID
- CaltechAUTHORS:20141201-105741726
- Resnick Sustainability Institute
- NSF
- CHE-1305124
- NSF Postdoctoral Fellowship
- NSF
- CHE-0639094
- Created
-
2014-12-01Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Resnick Sustainability Institute, CCI Solar Fuels, JCAP